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The genetic basis of resistance to barley grass yellow rust (Puccinia striiformis f. sp. pseudo-hordei) in Australian barley cultivars

Citation

Derevnina, L and Zhou, M and Singh, D and Wellings, CR and Park, RF, The genetic basis of resistance to barley grass yellow rust (Puccinia striiformis f. sp. pseudo-hordei) in Australian barley cultivars, Theoretical and Applied Genetics, 128, (2) pp. 187-197. ISSN 0040-5752 (2015) [Refereed Article]

Copyright Statement

Copyright 2014 Springer-Verlag Berlin Heidelberg

DOI: doi:10.1007/s00122-014-2323-x

Abstract

Twenty barley genotypes were assessed for resistance to a variant of P. striiformis [barley grass yellow rust (BGYR)] that is adapted to wild Hordeum sp. (barley grass) and is known to be virulent on several Australian barley cultivars. With the exception of Biosaline-19, all of the genotypes tested were resistant to BGYR. Genetic analyses of 16 Australian and three exotic barley lines indicated that each carried at least a single gene for resistance. Seedling resistance genes identified in the doubled haploid population developed from a cross between Franklin and Yerong were mapped to the long arm of chromosomes 5H and 7H, respectively. These genes were given the temporary designations of Rpsp-hFranklin and Rpsp-hYerong. Three QTL were detected in the same population when tested at the adult plant stage, two of them being in a similar position to Rpsp-hFranklin and Rpsp-hYerong and the third one was mapped to 5HS. Allelism tests between genotypes that exhibited seedling infection type responses to BGYR that were similar to Franklin and Yerong revealed that resistance in most were genetically independent of Rpsp-hFranklin and Rpsp-hYerong.

Item Details

Item Type:Refereed Article
Keywords:barley, BYGR, genetics
Research Division:Agricultural and Veterinary Sciences
Research Group:Crop and Pasture Production
Research Field:Crop and Pasture Improvement (Selection and Breeding)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Winter Grains and Oilseeds
Objective Field:Barley
Author:Zhou, M (Associate Professor Meixue Zhou)
ID Code:97581
Year Published:2015
Web of Science® Times Cited:5
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2014-12-24
Last Modified:2016-05-06
Downloads:0

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