9,623 results match your criteria TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik[Journal]


A reference high-density genetic map of greater yam (Dioscorea alata L.).

Theor Appl Genet 2019 Feb 20. Epub 2019 Feb 20.

CIRAD, UMR AGAP, 97170, Petit-Bourg, Guadeloupe, France.

Key Message: This study generated the first high-density genetic map for D. alata based on genotyping-by-sequencing and provides new insight on sex determination in yam. Greater yam (Dioscorea alata L. Read More

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http://dx.doi.org/10.1007/s00122-019-03311-6DOI Listing
February 2019

The transcription factor OsbHLH138 regulates thermosensitive genic male sterility in rice via activation of TMS5.

Theor Appl Genet 2019 Feb 18. Epub 2019 Feb 18.

State Key Laboratory of Hybrid Rice, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan, 430072, China.

Thermosensitive genic male sterile (TGMS) lines favored heterosis exploitation in two-line hybrid rice. TMS5, a member of RNase Z cleavages the Ub mRNAs, plays an important role in two-line hybrid rice. Here, we identified a new TGMS mutant 93-11s, which lost two amino acids in the first exon of TMS5 gene and caused thermosensitive genic male sterility in rice. Read More

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http://link.springer.com/10.1007/s00122-019-03310-7
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http://dx.doi.org/10.1007/s00122-019-03310-7DOI Listing
February 2019
1 Read

High-throughput phenotyping platforms enhance genomic selection for wheat grain yield across populations and cycles in early stage.

Theor Appl Genet 2019 Feb 18. Epub 2019 Feb 18.

Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA.

Genomic selection (GS) models have been validated for many quantitative traits in wheat (Triticum aestivum L.) breeding. However, those models are mostly constrained within the same growing cycle and the extension of GS to the case of across cycles has been a challenge, mainly due to the low predictive accuracy resulting from two factors: reduced genetic relationships between different families and augmented environmental variances between cycles. Read More

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http://dx.doi.org/10.1007/s00122-019-03309-0DOI Listing
February 2019

Development and validation of an exome-based SNP marker set for identification of the St, J and J genomes of Thinopyrym intermedium in a wheat background.

Theor Appl Genet 2019 Feb 14. Epub 2019 Feb 14.

Nottingham BBSRC Wheat Research Centre, Division of Plant and Crop Sciences, School of Biosciences, The University of Nottingham, Sutton Bonington Campus, Loughborough, UK.

Key Message: Cytogenetic analysis and array-based SNP genotyping of wheat- Th. intermedium introgression lines allowed identification of 634 chromosome-specific SNP markers across all twenty-one chromosomes of Th. intermedium (StJ J , 2 n  = 6 x  = 42). Read More

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http://dx.doi.org/10.1007/s00122-019-03300-9DOI Listing
February 2019

Genetic insights into morphometric inflorescence traits of wheat.

Theor Appl Genet 2019 Feb 14. Epub 2019 Feb 14.

Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstr. 3 OT Gatersleben, 06466, Seeland, Germany.

Key Message: Modifying morphometric inflorescence traits is important for increasing grain yield in wheat. Mapping revealed nine QTL, including new QTL and a new allele for the q locus, controlling wheat spike morphometric traits. To identify loci controlling spike morphometric traits, namely spike length (SL), internode length (IL), node number per spike (NPS), and node density (ND), we studied 146 Recombinant Inbred Lines of tetraploid wheat (Triticum turgidum L. Read More

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http://dx.doi.org/10.1007/s00122-019-03305-4DOI Listing
February 2019

Advances in understanding salt tolerance in rice.

Theor Appl Genet 2019 Feb 13. Epub 2019 Feb 13.

ICAR-National Bureau of Plant Genetic Resources, IARI Campus, Pusa, New Delhi, 110012, India.

Key Message: This review presents a comprehensive overview of the recent research on rice salt tolerance in the areas of genomics, proteomics, metabolomics and chemical genomics. Salinity is one of the major constraints in rice cultivation globally. Traditionally, rice is a glycophyte except for a few genotypes that have been widely used in salinity tolerance breeding of rice. Read More

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http://link.springer.com/10.1007/s00122-019-03301-8
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http://dx.doi.org/10.1007/s00122-019-03301-8DOI Listing
February 2019
1 Read
3.790 Impact Factor

Rare maternal and biparental transmission of the cucumber mitochondrial DNA reveals sorting of polymorphisms among progenies.

Theor Appl Genet 2019 Feb 13. Epub 2019 Feb 13.

USDA-ARS and Department of Horticulture, University of Wisconsin, Madison, WI, 53706, USA.

Key Message: We used a mitochondrial (mt) mutant of cucumber to document rare maternal transmission of mt polymorphisms and demonstrate that polymorphisms can become more prevalent and sort to progenies to increase mt DNA diversity. The mitochondrial (mt) DNAs of most angiosperms show maternal inheritance, although relatively rare biparental or paternal transmission has been documented. The mt DNAs of plants in the genus Cucumis (family Cucurbitaceae) are paternally transmitted in intra- and interspecific crosses. Read More

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http://dx.doi.org/10.1007/s00122-018-03274-0DOI Listing
February 2019

Ty-6, a major begomovirus resistance gene on chromosome 10, is effective against Tomato yellow leaf curl virus and Tomato mottle virus.

Theor Appl Genet 2019 Feb 13. Epub 2019 Feb 13.

Gulf Coast Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, 14625 CR 672, Wimauma, FL, 33598-6101, USA.

Key Message: Ty-6 is a major resistance gene on chromosome 10 of tomato that provides resistance against monopartite and bipartite begomoviruses and complements resistance conferred by the known Ty-3 and ty-5 genes. Resistance to monopartite and bipartite begomoviruses is an important breeding objective for cultivated tomato. Several begomovirus resistance genes have been introgressed from related Solanum species and are available for breeding purposes. Read More

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http://dx.doi.org/10.1007/s00122-019-03298-0DOI Listing
February 2019

High-density linkage maps and loci for berry color and flower sex in muscadine grape (Vitis rotundifolia).

Theor Appl Genet 2019 Feb 12. Epub 2019 Feb 12.

Department of Horticulture, University of Georgia, 4604 Research Way, Tifton, GA, 31793, USA.

Key Message: Linkage maps of muscadine grape generated using genotyping-by-sequencing (GBS) provide insight into genome collinearity between Muscadinia and Euvitis subgenera and genetic control of flower sex and berry color. The muscadine grape, Vitis rotundifolia, is a specialty crop native to the southeastern USA. Muscadine vines can be male, female, or perfect-flowered, and berry color ranges from bronze to black. Read More

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http://dx.doi.org/10.1007/s00122-019-03302-7DOI Listing
February 2019

Contribution of recent technological advances to future resistance breeding.

Theor Appl Genet 2019 Feb 12. Epub 2019 Feb 12.

Department of Plant and Microbial Biology, University of Zürich, Zollikerstrasse 107, 8008, Zurich, Switzerland.

The development of durable host resistance strategies to control crop diseases is a primary need for sustainable agricultural production in the future. This article highlights the potential of recent progress in the understanding of host resistance for future cereal breeding. Much of the novel work is based on advancements in large-scale sequencing and genomics, rapid gene isolation techniques and high-throughput molecular marker technologies. Read More

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http://dx.doi.org/10.1007/s00122-019-03297-1DOI Listing
February 2019

A robust Bayesian genome-based median regression model.

Theor Appl Genet 2019 Feb 12. Epub 2019 Feb 12.

Biometrics and Statistics Unit and Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, 06600, Mexico, DF, Mexico.

Key Message: Current genome-enabled prediction models assumed errors normally distributed, which are sensitive to outliers. We propose a model with errors assumed to follow a Laplace distribution to deal better with outliers. Current genome-enabled prediction models use regressions that fit the expected value (mean) of a response variable with errors assumed normally distributed, which are often sensitive to outliers, either genetic or environmental. Read More

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http://dx.doi.org/10.1007/s00122-019-03303-6DOI Listing
February 2019

A novel variant of Gh_D02G0276 is required for root-knot nematode resistance on chromosome 14 (D02) in Upland cotton.

Theor Appl Genet 2019 Feb 11. Epub 2019 Feb 11.

Crop Science Research Laboratory, Genetics and Precision Agriculture Research Unit, USDA-ARS, 150 Twelve Lane, Mississippi State, MS, 39762, USA.

Key Message: MAGIC population sequencing and virus-induced gene silencing identify Gh_D02G0276 as a novel root-knot nematode resistance gene on chromosome 14 in Upland cotton. The southern root-knot nematode [RKN; Meloidogyne incognita (Kofoid & White)] remains the primary yield-limiting biotic stress to Upland cotton (Gossypium hirsutum L.) throughout the southeastern USA. Read More

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http://dx.doi.org/10.1007/s00122-019-03289-1DOI Listing
February 2019

Broadening the bread wheat D genome.

Theor Appl Genet 2019 Feb 10. Epub 2019 Feb 10.

Department of Plant Breeding, Justus Liebig University, IFZ Research Centre for Biosystems, Land Use and Nutrition, Heinrich-Buff-Ring 26-32, Giessen, 35392, Germany.

Key Message: Although Ae. tauschii has been extensively utilised for wheat breeding, the D-genome-containing allopolyploids have largely remained unexploited. In this review, we discuss approaches that can be used to exploit the D genomes of the different Aegilops species for the improvement of bread wheat. Read More

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http://dx.doi.org/10.1007/s00122-019-03299-zDOI Listing
February 2019

QTL mapping of resistance to bacterial fruit blotch in Citrullus amarus.

Theor Appl Genet 2019 Feb 9. Epub 2019 Feb 9.

US Vegetable Laboratory, USDA, ARS, 2700 Savannah Highway, Charleston, SC, 29414, USA.

Key Message: Six QTLs were associated with affected leaf area in response to inoculation with Acidovorax citrulli in a recombinant inbred line population of Citrullus amarus. Acidovorax citrulli, the causal agent of bacterial fruit blotch (BFB) of cucurbits, has the potential to devastate production of watermelon and other cucurbits. Despite decades of research on host-plant resistance to A. Read More

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http://dx.doi.org/10.1007/s00122-019-03292-6DOI Listing
February 2019

The distribution pattern of endopolyploidy in maize.

Theor Appl Genet 2019 Feb 7. Epub 2019 Feb 7.

The Key Laboratory of Biology and Genetics Improvement of Maize in Arid Area of Northwest Region, Ministry of Agriculture, College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.

Key Message: We discovered that endopolyploidization is common in various organs and tissues of maize at different development stages. Endopolyploidy is not specific in maize germplasm populations. Endopolyploidy is caused by DNA endoreplication, a special type of mitosis with normal DNA synthesis and a lack of cell division; it is a common phenomenon and plays an important role in plant development. Read More

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http://link.springer.com/10.1007/s00122-019-03294-4
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http://dx.doi.org/10.1007/s00122-019-03294-4DOI Listing
February 2019
7 Reads

Quantitative trait loci mapping in hybrids between Dent and Flint maize multiparental populations reveals group-specific QTL for silage quality traits with variable pleiotropic effects on yield.

Theor Appl Genet 2019 Feb 7. Epub 2019 Feb 7.

UMR 0320, Quantitative Genetics and Evolution (GQE) - Le Moulon, INRA, Université Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, 91190, Gif-Sur-Yvette, France.

Key Message: Silage quality traits of maize hybrids between the Dent and Flint heterotic groups mostly involved QTL specific of each parental group, some of them showing unfavorable pleiotropic effects on yield. Maize (Zea mays L.) is commonly used as silage for cattle feeding in Northern Europe. Read More

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http://dx.doi.org/10.1007/s00122-019-03296-2DOI Listing
February 2019

Fine mapping of the wheat powdery mildew resistance gene Pm52 using comparative genomics analysis and the Chinese Spring reference genomic sequence.

Theor Appl Genet 2019 Feb 4. Epub 2019 Feb 4.

National Engineering Laboratory for Crop Molecular Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.

Key Message: A high-resolution genetic linkage map was constructed using the comparative genomics analysis approach and the wheat reference genome, which placed wheat powdery mildew resistance gene Pm52 in a 0.21-cM genetic interval on chromosome arm 2BL. The gene Pm52 confers resistance to powdery mildew and has been previously mapped on chromosome arm 2BL in winter wheat cultivar Liangxing 99. Read More

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http://dx.doi.org/10.1007/s00122-019-03291-7DOI Listing
February 2019

Introgression of resistance to Rhopalosiphum padi L. from wild barley into cultivated barley facilitated by doubled haploid and molecular marker techniques.

Theor Appl Genet 2019 Feb 2. Epub 2019 Feb 2.

Department of Plant Breeding, Swedish University of Agricultural Sciences, P.O. Box 101, 230 53, Alnarp, Sweden.

Key Message: Long-term pre-breeding using Hordeum vulgare ssp. spontaneum as a donor of bird cherry-oat aphid resistance has resulted in agronomically improved resistance sources of barley along with easy-to-use molecular markers. Bird cherry-oat aphid (Rhopalosiphum padi L. Read More

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http://dx.doi.org/10.1007/s00122-019-03287-3DOI Listing
February 2019

Identification of quantitative trait loci governing subgynoecy in cucumber.

Theor Appl Genet 2019 Feb 1. Epub 2019 Feb 1.

Plant Genomics Laboratory, Department of Plant Biotechnology, College of Life Sciences, Sejong University, 209 Neungdong-ro, Gwanjing-gu, Seoul, 143-747, Republic of Korea.

Key Message: QTL-seq analysis identified three major QTLs conferring subgynoecy in cucumbers. Furthermore, sequence and expression analyses predicted candidate genes controlling subgynoecy. The cucumber (Cucumis sativus L. Read More

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http://dx.doi.org/10.1007/s00122-019-03295-3DOI Listing
February 2019

A major QTL co-localized on chromosome 6BL and its epistatic interaction for enhanced wheat stripe rust resistance.

Theor Appl Genet 2019 Feb 1. Epub 2019 Feb 1.

State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China.

Key Message: Co-localization of a major QTL for wheat stripe rust resistance to a 3.9-cM interval on chromosome 6BL across both populations and another QTL on chromosome 2B with epistatic interaction. Cultivars with diverse resistance are the optimal strategy to minimize yield losses caused by wheat stripe rust (Puccinia striiformis f. Read More

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http://dx.doi.org/10.1007/s00122-019-03288-2DOI Listing
February 2019

Fine mapping of Aegilops peregrina co-segregating leaf and stripe rust resistance genes to distal-most end of 5DS.

Theor Appl Genet 2019 Jan 31. Epub 2019 Jan 31.

School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, Punjab, 141004, India.

Key Message: Novel rust resistance genes LrP and YrP from Ae. peregrina identified on chromosome 5D and the linked markers will aid deployment of these genes in combination with other major/minor genes. Aegilops peregrina, a wild tetraploid relative of wheat with genome constitution UUSS, displays genetic variation for resistance to leaf and stripe (yellow) rust. Read More

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http://dx.doi.org/10.1007/s00122-019-03293-5DOI Listing
January 2019

GWAS analysis of sorghum association panel lines identifies SNPs associated with disease response to Texas isolates of Colletotrichum sublineola.

Theor Appl Genet 2019 Jan 28. Epub 2019 Jan 28.

Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA.

Key Message: SNPs identify prospective genes related to response to Colletotrichum sublineola (anthracnose) in the sorghum association panel lines. Sorghum association panel (SAP) lines were scored over several years for response to Colletotrichum sublineola, the causal agent of the disease anthracnose. Known resistant and susceptible lines were included each year to verify successful inoculation. Read More

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http://dx.doi.org/10.1007/s00122-019-03285-5DOI Listing
January 2019
3.790 Impact Factor

Identification and characterization of a new dwarf locus DS-4 encoding an Aux/IAA7 protein in Brassica napus.

Theor Appl Genet 2019 Jan 28. Epub 2019 Jan 28.

National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China.

Key Message: A dominant dwarfing gene, ds - 4 , encodes an Aux/IAA protein that negatively regulates plant stature through an auxin signaling pathway. Dwarfism is an important agronomic trait affecting yield in many crop species. The molecular mechanisms underlying dwarfism in oilseed rape (Brassica napus) are poorly understood, restricting the progress of breeding dwarf varieties in this species. Read More

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http://dx.doi.org/10.1007/s00122-019-03290-8DOI Listing
January 2019
1 Read

Identification and validation of a novel major QTL for all-stage stripe rust resistance on 1BL in the winter wheat line 20828.

Theor Appl Genet 2019 Jan 24. Epub 2019 Jan 24.

Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.

Key Message: A major, likely novel stripe rust resistance QTL for all-stage resistance on chromosome arm 1BL identified in a 1.76-cM interval using a saturated linkage map was validated in four populations with different genetic backgrounds. Stripe rust is a globally important disease of wheat. Read More

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http://dx.doi.org/10.1007/s00122-019-03283-7DOI Listing
January 2019
1 Read

Training population selection and use of fixed effects to optimize genomic predictions in a historical USA winter wheat panel.

Theor Appl Genet 2019 Jan 24. Epub 2019 Jan 24.

Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC, 27695, USA.

Key Message: The optimization of training populations and the use of diagnostic markers as fixed effects increase the predictive ability of genomic prediction models in a cooperative wheat breeding panel. Plant breeding programs often have access to a large amount of historical data that is highly unbalanced, particularly across years. This study examined approaches to utilize these data sets as training populations to integrate genomic selection into existing pipelines. Read More

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http://link.springer.com/10.1007/s00122-019-03276-6
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http://dx.doi.org/10.1007/s00122-019-03276-6DOI Listing
January 2019
4 Reads

From markers to genome-based breeding in wheat.

Theor Appl Genet 2019 Jan 23. Epub 2019 Jan 23.

Institute of Crop Sciences, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China.

Key Message: Recent technological advances in wheat genomics provide new opportunities to uncover genetic variation in traits of breeding interest and enable genome-based breeding to deliver wheat cultivars for the projected food requirements for 2050. There has been tremendous progress in development of whole-genome sequencing resources in wheat and its progenitor species during the last 5 years. High-throughput genotyping is now possible in wheat not only for routine gene introgression but also for high-density genome-wide genotyping. Read More

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http://dx.doi.org/10.1007/s00122-019-03286-4DOI Listing
January 2019
1 Read

Identification of quantitative trait loci for symbiotic nitrogen fixation in common bean.

Theor Appl Genet 2019 Jan 22. Epub 2019 Jan 22.

Department of Plant, Soil and Microbial Sciences, Michigan State University, 1066 Bogue St, East Lansing, MI, 48824, USA.

Key Message: QTL were identified for symbiotic nitrogen fixation in common bean. These QTL were detected in both greenhouse and field studies, and many overlapped with previously reported QTL in diverse mapping populations. Common bean (Phaseolus vulgaris L. Read More

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http://link.springer.com/10.1007/s00122-019-03284-6
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http://dx.doi.org/10.1007/s00122-019-03284-6DOI Listing
January 2019
4 Reads

Mapping the H2 resistance effective against Globodera pallida pathotype Pa1 in tetraploid potato.

Theor Appl Genet 2019 Jan 21. Epub 2019 Jan 21.

The James Hutton Institute, CMS, Errol Road, Dundee, DD2 5DA, UK.

Key Message: The nematode resistance gene H2 was mapped to the distal end of chromosome 5 in tetraploid potato. The H2 resistance gene, introduced into cultivated potatoes from the wild diploid species Solanum multidissectum, confers a high level of resistance to the Pa1 pathotype of the potato cyst nematode Globodera pallida. A cross between tetraploid H2-containing breeding clone P55/7 and susceptible potato variety Picasso yielded an F1 population that segregated approximately 1:1 for the resistance phenotype, which is consistent with a single dominant gene in a simplex configuration. Read More

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http://dx.doi.org/10.1007/s00122-019-03278-4DOI Listing
January 2019
1 Read
3.790 Impact Factor

Assessment of breeding programs sustainability: application of phenotypic and genomic indicators to a North European grain maize program.

Theor Appl Genet 2019 Jan 21. Epub 2019 Jan 21.

GQE ‑ Le Moulon, INRA, Univ. Paris‑Sud, CNRS, AgroParisTech, Université Paris-Saclay, 91190, Gif-sur-Yvette, France.

Key Message: We review and propose easily implemented and affordable indicators to assess the genetic diversity and the potential of a breeding population and propose solutions for its long-term management. Successful plant breeding programs rely on balanced efforts between short-term goals to develop competitive cultivars and long-term goals to improve and maintain diversity in the genetic pool. Indicators of the sustainability of response to selection in breeding pools are of key importance in this context. Read More

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http://link.springer.com/10.1007/s00122-019-03280-w
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http://dx.doi.org/10.1007/s00122-019-03280-wDOI Listing
January 2019
3 Reads

Co-localization of genomic regions associated with seed morphology and composition in a desi chickpea (Cicer arietinum L.) population varying in seed protein concentration.

Theor Appl Genet 2019 Jan 19. Epub 2019 Jan 19.

Department of Plant Sciences, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada.

Key Message: Major QTL on LG 1 and 3 control seed filling and seed coat development, thereby affecting seed shape, size, color, composition and weight, key determinants of crop yield and quality. A chickpea (Cicer arietinum L.) population consisting of 189 recombinant inbred lines (RILs) derived from a cross between medium-protein ICC 995 and high-protein ICC 5912 genotypes of the desi market class was analyzed for seed properties. Read More

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http://dx.doi.org/10.1007/s00122-019-03277-5DOI Listing
January 2019
1 Read

Undesired fertility restoration in msm1 barley associates with two mTERF genes.

Theor Appl Genet 2019 Jan 18. Epub 2019 Jan 18.

Department of Plant Breeding, IFZ Research Centre for Biosystems, Land Use and Nutrition, Justus Liebig University, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany.

Key Message: The novel Rfm3 locus causing undesired fertility restoration in the msm1 cytoplasm of winter barley is located on the short arm of chromosome 6H. Undesired fertility restoration of cytoplasmic male sterile (CMS) mother lines in absence of the functional Rfm1 restorer gene is a significant problem for hybrid breeding in winter barley. Here, we describe that a novel restorer locus on the short arm of chromosome 6H, designated Rfm3, is closely linked to two mitochondrial transcription termination factor family (mTERF) protein coding genes. Read More

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http://link.springer.com/10.1007/s00122-019-03281-9
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http://dx.doi.org/10.1007/s00122-019-03281-9DOI Listing
January 2019
6 Reads

Fine mapping of Rha2 in barley reveals candidate genes for resistance against cereal cyst nematode.

Theor Appl Genet 2019 Jan 18. Epub 2019 Jan 18.

School of Agriculture, Food and Wine, Waite Research Institute, The University of Adelaide, PMB 1, Glen Osmond, SA, 5064, Australia.

Key Message: The cereal cyst nematode resistance locus Rha2 was mapped to a 978 kbp region on the long arm of barley chromosome 2H. Three candidate genes are discussed. The cereal cyst nematode (CCN) Heterodera avenae is a soil-borne obligate parasite that can cause severe damage to cereals. Read More

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http://dx.doi.org/10.1007/s00122-019-03279-3DOI Listing
January 2019
2 Reads
3.790 Impact Factor

Efficient genetic value prediction using incomplete omics data.

Theor Appl Genet 2019 Jan 17. Epub 2019 Jan 17.

Institute of Plant Breeding, Seed Science and Population Genetics, University of Hohenheim, 70599, Stuttgart, Germany.

Key Message: Covering a subset of individuals with a quantitative predictor, while imputing records for all others using pedigree or genomic data, could improve the precision of predictions while controlling for costs. Predicting genetic values with high accuracy is pivotal for effective candidate selection in animal and plant breeding. Novel 'omics'-based predictors have been shown to improve upon established genome-based predictions of important complex traits but require laborious and expensive assays. Read More

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http://dx.doi.org/10.1007/s00122-018-03273-1DOI Listing
January 2019
1 Read

Rapid identification of a candidate nicosulfuron sensitivity gene (Nss) in maize (Zea mays L.) via combining bulked segregant analysis and RNA-seq.

Theor Appl Genet 2019 Jan 16. Epub 2019 Jan 16.

Department of Crop, Soil and Environmental Science, Auburn University, Auburn, AL, 36849, USA.

Key Message: A candidate nicosulfuron sensitivity gene Nss was identified by combining bulked segregant analysis and RNA-seq. Multiple mutations of this gene were discovered in nicosulfuron-sensitive maize compared with the tolerant. It has been demonstrated that variabilities exist in maize response to nicosulfuron. Read More

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http://dx.doi.org/10.1007/s00122-019-03282-8DOI Listing
January 2019
1 Read

A MYB transcription factor is a candidate to control pungency in Capsicum annuum.

Theor Appl Genet 2019 Jan 3. Epub 2019 Jan 3.

Department of Plant Science, Plant Genomics and Breeding Institute, and Vegetable Breeding Research Center, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.

Key Message: Identification of a novel pungency-controlling gene Pun3, which acts as a master regulator of capsaicinoid biosynthetic genes in Capsicum annuum. Capsaicinoid is a unique compound that gives hot peppers (Capsicum spp.) their spicy taste. Read More

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http://link.springer.com/10.1007/s00122-018-03275-z
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http://dx.doi.org/10.1007/s00122-018-03275-zDOI Listing
January 2019
14 Reads

Genetic dissection of domestication-related traits in soybean through genotyping-by-sequencing of two interspecific mapping populations.

Theor Appl Genet 2019 Jan 3. Epub 2019 Jan 3.

Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.

Key Message: A total of 132 domestication-related QTLs, of which 41 were novel, were identified through genotyping-by-sequencing of two Glycine max × Glycine soja populations. Soybean [Glycine max (L.) Merr. Read More

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http://dx.doi.org/10.1007/s00122-018-3272-6DOI Listing
January 2019
1 Read

Genetic diversity patterns and domestication origin of soybean.

Theor Appl Genet 2018 Dec 26. Epub 2018 Dec 26.

School of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Korea.

Key Message: Genotyping data of a comprehensive Korean soybean collection obtained using a large SNP array were used to clarify global distribution patterns of soybean and address the evolutionary history of soybean. Understanding diversity and evolution of a crop is an essential step to implement a strategy to expand its germplasm base for crop improvement research. Accessions intensively collected from Korea, which is a small but central region in the distribution geography of soybean, were genotyped to provide sufficient data to underpin population genetic questions. Read More

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http://link.springer.com/10.1007/s00122-018-3271-7
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http://dx.doi.org/10.1007/s00122-018-3271-7DOI Listing
December 2018
2 Reads

Comparisons of molecular diversity indices, selective sweeps and population structure of African rice with its wild progenitor and Asian rice.

Theor Appl Genet 2018 Dec 21. Epub 2018 Dec 21.

M'bé Research Station, Africa Rice Center (AfricaRice), 01 B.P. 2551, Bouaké 01, Côte d'Ivoire.

Key Message: The extent of molecular diversity parameters across three rice species was compared using large germplasm collection genotyped with genomewide SNPs and SNPs that fell within selective sweep regions. Previous studies conducted on limited number of accessions have reported very low genetic variation in African rice (Oryza glaberrima Steud.) as compared to its wild progenitor (O. Read More

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http://dx.doi.org/10.1007/s00122-018-3268-2DOI Listing
December 2018
1 Read

Identification of co-located QTLs and genomic regions affecting grapevine cluster architecture.

Theor Appl Genet 2018 Dec 19. Epub 2018 Dec 19.

Institute for Grapevine Breeding Geilweilerhof, Julius Kuehn Institute, Federal Research Centre of Cultivated Plants, Geilweilerhof, 76833, Siebeldingen, Germany.

Loose cluster architecture is an important aim in grapevine breeding since it has high impact on the phytosanitary status of grapes. This investigation analyzed the contributions of individual cluster sub-traits to the overall trait of cluster architecture. Six sub-traits showed large impact on cluster architecture as major determinants. Read More

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http://link.springer.com/10.1007/s00122-018-3269-1
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http://dx.doi.org/10.1007/s00122-018-3269-1DOI Listing
December 2018
5 Reads

State-of-the-art and novel developments of in vivo haploid technologies.

Theor Appl Genet 2018 Dec 19. Epub 2018 Dec 19.

Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Corrensstraße 3, 06466, Stadt Seeland, Germany.

The ability to generate (doubled) haploid plants significantly accelerates the crop breeding process. Haploids have been induced mainly through the generation of plants from cultivated gametophic (haploid) cells and tissues, i.e. Read More

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http://link.springer.com/10.1007/s00122-018-3261-9
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http://dx.doi.org/10.1007/s00122-018-3261-9DOI Listing
December 2018
10 Reads

Accelerating crop genetic gains with genomic selection.

Theor Appl Genet 2018 Dec 19. Epub 2018 Dec 19.

Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, 4072, Australia.

Key Message: Genomic prediction based on additive genetic effects can accelerate genetic gain. There are opportunities for further improvement by including non-additive effects that access untapped sources of genetic diversity. Several studies have reported a worrying gap between the projected global future demand for plant-based products and the current annual rates of production increase, indicating that enhancing the rate of genetic gain might be critical for future food security. Read More

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http://dx.doi.org/10.1007/s00122-018-3270-8DOI Listing
December 2018
2 Reads

FaRCa1: a major subgenome-specific locus conferring resistance to Colletotrichum acutatum in strawberry.

Theor Appl Genet 2018 Dec 18. Epub 2018 Dec 18.

Department of Horticultural Sciences, University of Florida, IFAS Gulf Coast Research and Education Center, Wimauma, FL, 33598, USA.

Optimal strategies for genetic improvement in crops depend on accurate assessments of the genetic architecture of traits. The overall objective of the present study was to determine the genetic architecture of anthracnose fruit rot (AFR) resistance caused by the fungus Colletotrichum acutatum in the University of Florida strawberry (Fragaria × ananassa) breeding germplasm. In 2016-2017, 33 full-sib families resulting from crosses between parents with varying levels of AFR resistance were tested. Read More

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http://dx.doi.org/10.1007/s00122-018-3263-7DOI Listing
December 2018
1 Read

Back to the future: revisiting MAS as a tool for modern plant breeding.

Theor Appl Genet 2018 Dec 17. Epub 2018 Dec 17.

International Rice Research Institute, National Road, Los Banos, Laguna, Philippines.

Key Message: New models for integration of major gene MAS with modern breeding approaches stand to greatly enhance the reliability and efficiency of breeding, facilitating the leveraging of traditional genetic diversity. Genetic diversity is well recognised as contributing essential variation to crop breeding processes, and marker-assisted selection is cited as the primary tool to bring this diversity into breeding programs without the associated genetic drag from otherwise poor-quality genomes of donor varieties. However, implementation of marker-assisted selection techniques remains a challenge in many breeding programs worldwide. Read More

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http://link.springer.com/10.1007/s00122-018-3266-4
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http://dx.doi.org/10.1007/s00122-018-3266-4DOI Listing
December 2018
2 Reads

Toward the sequence-based breeding in legumes in the post-genome sequencing era.

Theor Appl Genet 2018 Dec 17. Epub 2018 Dec 17.

International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, 502324, India.

Efficiency of breeding programs of legume crops such as chickpea, pigeonpea and groundnut has been considerably improved over the past decade through deployment of modern genomic tools and technologies. For instance, next-generation sequencing technologies have facilitated availability of genome sequence assemblies, re-sequencing of several hundred lines, development of HapMaps, high-density genetic maps, a range of marker genotyping platforms and identification of markers associated with a number of agronomic traits in these legume crops. Although marker-assisted backcrossing and marker-assisted selection approaches have been used to develop superior lines in several cases, it is the need of the hour for continuous population improvement after every breeding cycle to accelerate genetic gain in the breeding programs. Read More

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http://dx.doi.org/10.1007/s00122-018-3252-xDOI Listing
December 2018
1 Read
3.790 Impact Factor

Accuracy of within- and among-family genomic prediction for Fusarium head blight and Septoria tritici blotch in winter wheat.

Theor Appl Genet 2018 Dec 14. Epub 2018 Dec 14.

State Plant Breeding Institute, University of Hohenheim, Fruwirthstr. 21, 70599, Stuttgart, Germany.

Genomic selection is an approach that uses whole-genome marker data to predict breeding values of genotypes and holds the potential to improve the genetic gain in breeding programs. In this study, two winter wheat populations (DS1 and DS2) consisting of 438 and 585 lines derived from six and eight bi-parental families, respectively, were genotyped with genome-wide single nucleotide polymorphism markers and phenotyped for Fusarium head blight and Septoria tritici blotch severity, plant height and heading date. We used ridge regression-best linear unbiased prediction to investigate the potential of genomic selection under different selection scenarios: prediction across each winter wheat population, within- and among-family prediction in each population, and prediction from DS1 to DS2 and vice versa. Read More

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http://dx.doi.org/10.1007/s00122-018-3264-6DOI Listing
December 2018
1 Read

Breaking the curse of dimensionality to identify causal variants in Breeding 4.

Theor Appl Genet 2018 Dec 13. Epub 2018 Dec 13.

Institute for Genomic Diversity, Institute of Biotechnology, Cornell University, 175 Biotechnology Building, Ithaca, NY, 14853, USA.

In the past, plant breeding has undergone three major transformations and is currently transitioning to a new technological phase, Breeding 4. This phase is characterized by the development of methods for biological design of plant varieties, including transformation and gene editing techniques directed toward causal loci. The application of such technologies will require to reliably estimate the effect of loci in plant genomes by avoiding the situation where the number of loci assayed (p) surpasses the number of plant genotypes (n). Read More

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http://link.springer.com/10.1007/s00122-018-3267-3
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http://dx.doi.org/10.1007/s00122-018-3267-3DOI Listing
December 2018
11 Reads

Characterisation of barley resistance to rhynchosporium on chromosome 6HS.

Theor Appl Genet 2018 Dec 13. Epub 2018 Dec 13.

The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, Scotland, UK.

Key Message: Major resistance gene to rhynchosporium, Rrs18, maps close to the telomere on the short arm of chromosome 6H in barley. Rhynchosporium or barley scald caused by a fungal pathogen Rhynchosporium commune is one of the most destructive and economically important diseases of barley in the world. Testing of Steptoe × Morex and CIho 3515 × Alexis doubled haploid populations has revealed a large effect QTL for resistance to R. Read More

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http://link.springer.com/10.1007/s00122-018-3262-8
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http://dx.doi.org/10.1007/s00122-018-3262-8DOI Listing
December 2018
6 Reads

Characterization of Pm63, a powdery mildew resistance gene in Iranian landrace PI 628024.

Theor Appl Genet 2018 Dec 12. Epub 2018 Dec 12.

Wheat, Peanut and Other Field Crops Research Unit, USDA-ARS, Stillwater, OK, 74075, USA.

Key Message: A new powdery mildew resistance gene conferring a wide spectrum of resistance to Bgt isolates in the USA, Pm63 , was identified in Iranian wheat landrace PI 628024 and mapped to the terminal region of the long arm of chromosome 2B. Powdery mildew is a globally important wheat disease causing severe yield losses, and host resistance is the preferred strategy for managing this disease. The objective of this study was to characterize a powdery mildew resistance gene in Iranian landrace PI 628024, which exhibited a wide spectrum of resistance to representative Blumeria graminis f. Read More

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http://dx.doi.org/10.1007/s00122-018-3265-5DOI Listing
December 2018
2 Reads

ZmAPRG, an uncharacterized gene, enhances acid phosphatase activity and Pi concentration in maize leaf during phosphate starvation.

Theor Appl Genet 2018 Dec 6. Epub 2018 Dec 6.

Key Laboratory of Biotechnology and Crop Quality Improvement, Maize Research Institute, Ministry of Agriculture, Southwest University, Chongqing, 400715, China.

Key Message: An uncharacterized gene, ZmAPRG, isolated by map-based cloning, enhances acid phosphatase activity and phosphate concentration in maize leaf during phosphate starvation. Acid phosphatase (APase) plays important roles in the absorption and utilization of phosphate (Pi) during maize growth. The information on genes regulating the acid phosphatase activity (APA) in maize leaves remains obscured. Read More

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http://dx.doi.org/10.1007/s00122-018-3257-5DOI Listing
December 2018
1 Read

Genotyping-by-sequencing based genetic mapping reveals large number of epistatic interactions for stem rot resistance in groundnut.

Theor Appl Genet 2018 Dec 11. Epub 2018 Dec 11.

ICAR-Directorate of Groundnut Research (ICAR-DGR), Junagadh, 362001, India.

Key Message: Genetic mapping identified large number of epistatic interactions indicating the complex genetic architecture for stem rot disease resistance. Groundnut (Arachis hypogaea) is an important global crop commodity and serves as a major source of cooking oil, diverse confectionery preparations and livestock feed. Stem rot disease caused by Sclerotium rolfsii is the most devastating disease of groundnut and can cause up to 100% yield loss. Read More

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http://dx.doi.org/10.1007/s00122-018-3255-7DOI Listing
December 2018
2 Reads
3.790 Impact Factor