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Studies on barley yellow dwarf virus (BYDV) in wheat


Zhou, M and Larkin, P and Schwinghamer, M and Coutts, B and Birchall, C and Johnson, P and Westmore, G and Davey, B, Studies on barley yellow dwarf virus (BYDV) in wheat, Proceedings of the 17th Australian Society of Agronomy Conference, 20-24 September 2015, Hobart, Australia, pp. 1-4. (2015) [Refereed Conference Paper]

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Copyright 2015 Australian Society of Agronomy Inc.

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BYDV has been one of the major production issues in wheat in high rainfall areas of the southern region including Tasmania, Victoria, and Western Australia. Yellow dwarf virus (YDV) are caused by a range of related luteoviruses but in wheat BYDV-PAV vectored mainly by the oat aphid (R. padi), has been considered the most damaging species worldwide including Australia. Sources of tolerance are thought to be available amongst existing wheat cultivars, but this has not been experimentally validated, nor has the yield advantage been quantified. In our recently GRDC funded project, we will establish one or two sites where infection can be consistent; test current varieties adapted to high rainfall wheat production zones and breeding lines supplied by breeders for BYDV resistance/tolerance; test the impact of the current source of resistance gene Bdv2 derived from intermediate wheatgrass (Thinopyrum intermedium) on yield and grain quality; and provide breeders with useful BYDV tolerance or resistance in a minimum of four grower preferred varieties adapted to high rainfall zones (HRZ). This project will also screen more germplasm for alternative YDV resistance genes. Preliminary yield trials showed a significant reduction in yield due to virus infection. Screening trials in both Australia and China identified a few resistant germplasm. If new genes are found, molecular markers linked to the gene will be identified for use in breeding programs.

Item Details

Item Type:Refereed Conference Paper
Keywords:wheat, BYDV, BYDV resistance, germplasm
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Crop and pasture production
Research Field:Crop and pasture improvement (incl. selection and breeding)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Grains and seeds
Objective Field:Barley
UTAS Author:Zhou, M (Professor Meixue Zhou)
UTAS Author:Johnson, P (Dr Peter Johnson)
UTAS Author:Davey, B (Mr Brett Davey)
ID Code:107033
Year Published:2015
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2016-03-02
Last Modified:2016-08-02

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