Pubfacts - Scientific Publication Data
  • Categories
  • |
  • Journals
  • |
  • Authors
  • Login
  • Categories
  • Journals

Search Our Scientific Publications & Authors

Publications
  • Publications
  • Authors
find publications by category +
Translate page:

Recombination fraction and genetic linkage among key disease resistance genes ( //"P.ult") in common bean.

Authors:
Dennis Okii Arfang Badji Thomas Odong Herbert Talwana Phinehas Tukamuhabwa Allan Male Clare Mukankusi Paul Gepts

Afr J Biotechnol 2019 30;18(29). Epub 2019 Sep 30.

Section of Crop and Ecosystem Sciences, Department of Plant Sciences/MS1, University of California, 1 Shields Avenue, Davis, CA 95616-8780, USA.

Anthracnose (), Angular leaf spot () and root rot are important pathogens affecting common bean production in the tropics. A promising strategy to manage these diseases consists of combining several resistance (R) genes into one cultivar. The aim of the study was to determine genetic linkage between gene pairs, /, on bean-chromosome Pv08 and /"P.ult" on-chromosome Pv07, to increase the efficiency of dual selection of resistance genes for major bean diseases, with molecular markers. The level of recombination was determined by tracking molecular markers for both BC3F6 and F2 generations. Recombination fraction r, among gene pairs, the likelihood of linkage, L(r), and logarithm of odds (LOD) scores were computed using the statistical relationship of likelihood which assumes a binomial distribution. The SCAR marker pair SAB3/PYAA19 for the gene pair /"P.ult" exhibited moderate linkage (r = 32 cM with a high LOD score of 9.2) for BCF population, but relatively stronger linkage for the F population (r = 21 cM with a high LOD score of 18.7). However, the linkage among SCAR marker pair SH18/SN02, for the gene pair /2 was incomplete for BCF population (r = 47 cM with a low LOD score of 0.16) as well as F population (r = 44 cM with a low LOD score of 0.7). Generally, the weak or incomplete genetic linkage between marker pairs studied showed that all the four genes mentioned earlier have to be tagged with a corresponding linked marker during selection. The approaches used in this study will contribute to two loci linkage mapping techniques in segregating plant populations.

Download full-text PDF

Source
http://dx.doi.org/10.5897/AJB2019.16776DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7672375PMC
September 2019

Publication Analysis

Top Keywords

lod score
16
resistance genes
12
genetic linkage
12
gene pair
8
gene pairs
8
scar marker
8
marker pair
8
low lod
8
common bean
8
population low
8
recombination fraction
8
bcf population
8
high lod
8
linkage
8
molecular markers
8
lod
5
pair /"pult"
4
distribution scar
4
sab3/pyaa19 gene
4
/"pult" exhibited
4

Keyword Occurance

Similar Publications

Genetic Dissection of Three Major Quantitative Trait Loci for Spike Compactness and Length in Bread Wheat ( L.).

Authors:
Qin Yu Bo Feng Zhibin Xu Xiaoli Fan Qiang Zhou Guangsi Ji Simin Liao Ping Gao Tao Wang

Front Plant Sci 2022 23;13:882655. Epub 2022 May 23.

Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China.

Spike compactness (SC) and length (SL) are the components of spike morphology and are strongly related to grain yield in wheat ( L.). To investigate quantitative trait loci (QTL) associated with SC and SL, a recombinant inbred lines (RIL) population derived from the cross of Bailangmai (BLM, a Tibet landrace) and Chuanyu 20 (CY20, an improved variety) was employed in six environments. Read More

View Article and Full-Text PDF
May 2022
Similar Publications

The risks of RELN polymorphisms and its expression in the development of otosclerosis.

Authors:
Saurabh Priyadarshi Kirtal Hansdah Neha Singh Amal Bouzid Chinmay Sundar Ray Khirod Chandra Panda Narayan Chandra Biswal Ashim Desai Jyotish Chandra Choudhury Adel Tekari Saber Masmoudi Puppala Venkat Ramchander

PLoS One 2022 3;17(6):e0269558. Epub 2022 Jun 3.

Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar, India.

Otosclerosis (OTSC) is the primary form of conductive hearing loss characterized by abnormal bone remodelling within the otic capsule of the human middle ear. A genetic association of the RELN SNP rs3914132 with OTSC has been identified in European population. Previously, we showed a trend towards association of this polymorphism with OTSC and identified a rare variant rs74503667 in a familial case. Read More

View Article and Full-Text PDF
June 2022
Similar Publications

Identification of a novel DFNA5 mutation, IVS7-2 a > G, in a Chinese family with non-syndromic sensorineural hearing loss.

Authors:
ZhanGuo Jin Qingwen Zhu Yu Lu Jing Cheng HuiJun Yuan DongYi Han

Acta Otolaryngol 2022 May 31;142(5):448-453. Epub 2022 May 31.

Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, China.

Background: To date, seven mutations have been reported in families with autosomal dominant non-syndromic hearing loss worldwide. All the mutations cause exon 8 skipping at the mRNA level, that led to the protein truncated and the protein could exert a gain of ototoxic function.

Objective: In this study, we found an autosomal-dominant non-syndromic hearing loss Chinese pedigree which spanned four generations and comprised 43 members. Read More

View Article and Full-Text PDF
May 2022
Similar Publications

dQTG.seq: A comprehensive R tool for detecting all types of QTLs using extreme phenotype individuals in bi-parental segregation populations.

Authors:
Pei Li Liu-Qiong Wei Yi-Fan Pan Yuan-Ming Zhang

Comput Struct Biotechnol J 2022 14;20:2332-2337. Epub 2022 May 14.

College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.

Although methodologies and software packages for bulked segregant analysis (BSA) are well established, it is difficult to detect extremely over-dominant and small-effect genes for quantitative traits in F population. To address this issue, we proposed a combinatorial strategy to identify all types of quantitative trait loci (QTLs) using extreme phenotype individuals in F. To popularize this strategy, we developed an R software package dQTG. Read More

View Article and Full-Text PDF
May 2022
Similar Publications

Haplotype phasing of a bipolar disorder pedigree revealed rare multiple mutations of SPOCD1 gene in the 1p36-35 susceptibility locus.

Authors:
Gakuya Takamatsu Kumiko Yanagi Kae Koganebuchi Fuyuko Yoshida Jun-Seok Lee Kanako Toyama Kotaro Hattori Chiaki Katagiri Tsuyoshi Kondo Hiroshi Kunugi Ryosuke Kimura Tadashi Kaname Masayuki Matsushita

J Affect Disord 2022 08 2;310:96-105. Epub 2022 May 2.

Department of Molecular and Cellular Physiology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan. Electronic address:

Background: The etiology of bipolar disorder (BD) is poorly understood. Considering the complexity of BD, pedigree-based sequencing studies focusing on haplotypes at specific loci may be practical to discover high-impact risk variants. This study comprehensively examined the haplotype sequence at 1p36-35 BD and recurrent depressive disorder (RDD) susceptibility loci. Read More

View Article and Full-Text PDF
August 2022
Similar Publications
}
© 2022 PubFacts.
  • About PubFacts
  • Privacy Policy
  • Sitemap