11 results match your criteria total vsirnas

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Persistent Southern Tomato Virus (STV) Interacts with Cucumber Mosaic and/or Pepino Mosaic Virus in Mixed- Infections Modifying Plant Symptoms, Viral Titer and Small RNA Accumulation.

Microorganisms 2021 Mar 26;9(4). Epub 2021 Mar 26.

Biotechnology and Plant Protection Center, Valencian Institute of Agricultural Research (IVIA), 46113 Valencia, Spain.

Southern tomato virus (STV) is a persistent virus that was, at the beginning, associated with some tomato fruit disorders. Subsequent studies showed that the virus did not induce apparent symptoms in single infections. Accordingly, the reported symptoms could be induced by the interaction of STV with other viruses, which frequently infect tomato. Read More

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Barley yellow dwarf virus-GAV-derived vsiRNAs are involved in the production of wheat leaf yellowing symptoms by targeting chlorophyll synthase.

Virol J 2020 10 21;17(1):158. Epub 2020 Oct 21.

State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, 712100, China.

Background: Wheat yellow dwarf virus disease is infected by barley yellow dwarf virus (BYDV), which causes leaf yellowing and dwarfing symptoms in wheat, thereby posing a serious threat to China's food production. The infection of plant viruses can produce large numbers of vsiRNAs, which can target host transcripts and cause symptom development. However, few studies have been conducted to explore the role played by vsiRNAs in the interaction between BYDV-GAV and host wheat plants. Read More

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October 2020

PVsiRNAdb: a database for plant exclusive virus-derived small interfering RNAs.

Database (Oxford) 2018 01 1;2018. Epub 2018 Jan 1.

Bioinformatics Laboratory, National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India.

Ribonucleic acids (RNA) interference mechanism has been proved to be an important regulator of both transcriptional and post-transcription controls of gene expression during biotic and abiotic stresses in plants. Virus-derived small interfering RNAs (vsiRNAs) are established components of the RNA silencing mechanism for incurring anti-viral resistance in plants. Some databases like siRNAdb, HIVsirDB and VIRsiRNAdb are available online pertaining to siRNAs as well as vsiRNAs generated during viral infection in humans; however, currently there is a lack of repository for plant exclusive vsiRNAs. Read More

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January 2018

Integrated analysis of tobacco miRNA and mRNA expression profiles under PVY infection provids insight into tobacco-PVY interactions.

Sci Rep 2017 07 7;7(1):4895. Epub 2017 Jul 7.

Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, P. R. China.

Potato virus Y (PVY) is a globally and economically important pathogen of potato, tobacco, tomato and other staple crops and caused significant yield losses and reductions in quality.To explore the molecular PVY-host interactions, we analysed changes in the miRNA and mRNA profiles of tobacco in response to PVY infection. A total of 81 differentially expressed miRNAs belonging to 29 families and 8133 mRNAs were identified. Read More

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Transcriptome-wide identification of host genes targeted by tomato spotted wilt virus-derived small interfering RNAs.

Virus Res 2017 06 22;238:13-23. Epub 2017 May 22.

Department of Plant Pathology, Washington State University, Pullman, WA 99164, USA. Electronic address:

RNA silencing mechanism functions as a major defense against invading viruses. The caveat in the RNA silencing mechanism is that the effector small interfering RNAs (siRNAs) act on any RNA transcripts with sequence complementarity irrespective of target's origin. A subset of highly expressed viral small interfering RNAs (vsiRNAs) derived from the tomato spotted wilt virus (TSWV; Tospovirus: Bunyaviridae) genome was analyzed for their propensity to downregulate the tomato transcriptome. Read More

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Diversity, Distribution, and Evolution of Tomato Viruses in China Uncovered by Small RNA Sequencing.

J Virol 2017 06 12;91(11). Epub 2017 May 12.

Development and Collaborative Innovation Center of Plant Germplasm Resources, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, China

Tomato is a major vegetable crop that has tremendous popularity. However, viral disease is still a major factor limiting tomato production. Here, we report the tomato virome identified through sequencing small RNAs of 170 field-grown samples collected in China. Read More

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Characterization of virus-derived small interfering RNAs in Apple stem grooving virus-infected in vitro-cultured Pyrus pyrifolia shoot tips in response to high temperature treatment.

Virol J 2016 10 6;13(1):166. Epub 2016 Oct 6.

State Key Laboratory of Agricultural Microbiology, Wuhan, Hubei, 430070, People's Republic of China.

Background: Heat treatment (known as thermotherapy) together with in vitro culture of shoot meristem tips is a commonly used technology to obtain virus-free germplasm for the effective control of virus diseases in fruit trees. RNA silencing as an antiviral defense mechanism has been implicated in this process. To understand if high temperature-mediated acceleration of the host antiviral gene silencing system in the meristem tip facilitates virus-derived small interfering RNAs (vsiRNA) accumulation to reduce the viral RNA titer in the fruit tree meristem tip cells, we used the Apple stem grooving virus (ASGV)-Pyrus pyrifolia pathosystem to explore the possible roles of vsiRNA in thermotherapy. Read More

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October 2016

Generation of a high resolution map of sRNAs from Fusarium graminearum and analysis of responses to viral infection.

Sci Rep 2016 05 18;6:26151. Epub 2016 May 18.

State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.

Previously, we characterized F. graminearum hypovirus 1 (FgHV1) and F. graminearum hypovirus 2 (FgHV2), which are the only two hypoviruses in F. Read More

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Comparative analysis of virus-specific small RNA profiles of three biologically distinct strains of Potato virus Y in infected potato (Solanum tuberosum) cv. Russet Burbank.

Virus Res 2014 Oct 15;191:153-60. Epub 2014 Jul 15.

Department of Plant Pathology, Washington State University, Pullman, WA, USA. Electronic address:

Deep sequencing technology has enabled the analysis of small RNA profiles of virus-infected plants and could provide insights into virus-host interactions. Potato virus Y is an economically important viral pathogen of potato worldwide. In this study, we investigated the nature and relative levels of virus-derived small interfering RNAs (vsiRNAs) in potato cv. Read More

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October 2014

Differential expression of tomato spotted wilt virus-derived viral small RNAs in infected commercial and experimental host plants.

PLoS One 2013 15;8(10):e76276. Epub 2013 Oct 15.

Queensland Alliance for Agriculture and Food Innovation, the University of Queensland, St. Lucia, Australia.

Background: Viral small RNAs (vsiRNAs) in the infected host can be generated from viral double-stranded RNA replicative intermediates, self-complementary regions of the viral genome or from the action of host RNA-dependent RNA polymerases on viral templates. The vsiRNA abundance and profile as well as the endogenous small RNA population can vary between different hosts infected by the same virus influencing viral pathogenicity and host response. There are no reports on the analysis of vsiRNAs of Tomato spotted wilt virus (TSWV), a segmented negative stranded RNA virus in the family Bunyaviridae, with two of its gene segments showing ambisense gene arrangement. Read More

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Global analyses of small interfering RNAs derived from Bamboo mosaic virus and its associated satellite RNAs in different plants.

PLoS One 2010 Aug 2;5(8):e11928. Epub 2010 Aug 2.

Institute of Biotechnology, National Cheng Kung University, Tainan, Taiwan.

Background: Satellite RNAs (satRNAs), virus parasites, are exclusively associated with plant virus infection and have attracted much interest over the last 3 decades. Upon virus infection, virus-specific small interfering RNAs (vsiRNAs) are produced by dicer-like (DCL) endoribonucleases for anti-viral defense. The composition of vsiRNAs has been studied extensively; however, studies of satRNA-derived siRNAs (satsiRNAs) or siRNA profiles after satRNA co-infection are limited. Read More

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