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Genomic regions on chromosome 5H containing a novel QTL conferring barley yellow dwarf virus-PAV (BYDV-PAV) tolerance in barley

Citation

Hu, H and Choudhury, S and Shabala, S and Gupta, S and Zhou, M, Genomic regions on chromosome 5H containing a novel QTL conferring barley yellow dwarf virus-PAV (BYDV-PAV) tolerance in barley, Scientific Reports, 9, (1) Article 11298. ISSN 2045-2322 (2019) [Refereed Article]


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DOI: doi:10.1038/s41598-019-47820-2

Abstract

Barley yellow dwarf virus is a widespread disease affecting plant growth and yield in cereal crops including barley. Complete resistance to BYDV encoded by a single gene is lacking in barley. To identify novel resistance genes that can be further utilised in breeding for plant disease resistance, a doubled haploid population originated from a cultivated barley with a known resistance gene and a wild barley was constructed and assessed for barley yellow dwarf tolerance in three trials with two in Tasmania (TAS) and one in Western Australia (WA). We identified two Quantitative trait loci (QTL) in both Tasmanian trials, and four QTL in Western Australian trial. Two QTL from TAS trials were also detected from WA. The QTL on chromosome 3H corresponds to the known major resistance gene Ryd2. The other QTL, Qbyd-5H, represents a potential new resistance locus and contributed 7.0~10.4% of total phenotypic variation in the three trials. It was mapped within the interval of 125.76~139.24 cM of chromosome 5H. Two additional minor effect QTL were identified on chromosome 7H from WA trial, contributing slightly less effect on BYD tolerance. The consistently detected new gene on chromosome 5H will potentially serve as a novel source of tolerance to achieve more sustainable resistance to BYDV in barley.

Item Details

Item Type:Refereed Article
Keywords:barley, BYDV, barley yellow dwarf virus
Research Division:Agricultural and Veterinary Sciences
Research Group:Crop and Pasture Production
Research Field:Agro-ecosystem Function and Prediction
Objective Division:Plant Production and Plant Primary Products
Objective Group:Winter Grains and Oilseeds
Objective Field:Barley
UTAS Author:Hu, H (Mr Hongliang Hu)
UTAS Author:Choudhury, S (Mrs Shormin Choudhury)
UTAS Author:Shabala, S (Professor Sergey Shabala)
UTAS Author:Zhou, M (Professor Meixue Zhou)
ID Code:136235
Year Published:2019
Deposited By:Zoology
Deposited On:2019-12-09
Last Modified:2020-01-07
Downloads:0

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