Journal ArticleDOI
Leaf Rust and Stripe Rust Resistance Genes Derived from Aegilops Sharonensis
Reads0
Chats0
TLDR
Linked leaf and stripe rust resistance genes introgressed into hexaploid wheat from Aegilops sharonensis provided protection in the seedling stage to a wide range of pathotypes of the two diseases.Abstract:
Linked leaf and stripe rust resistance genes introgressed into hexaploid wheat from Aegilops sharonensis provided protection in the seedling stage to a wide range of pathotypes of the two diseases. Monosomic and telosomic analyses showed that the resistance genes occur on wheat chromosome 6A. This result could be confirmed making use of mapped chromosome 6A microsatellite markers. The introgressed chromatin appeared to involve the proximal part of 6AL and the complete 6AS arm and it was thus not possible to deduce the chromosome arm harbouring the resistance genes. The resistance showed non-Mendelian transmission. The genetic background of a heterozygote interacted with the introgressed region to result in either preferential or impaired female transmission. Male transmission appeared to be affected in a different way from female transmission and was exclusive in the genetic background studied. Symbols Lr56 and Yr38 are proposed to designate the respective genes of which line 0352-4 is the appropriate source material.read more
Citations
More filters
Journal ArticleDOI
Association analysis of historical bread wheat germplasm using additive genetic covariance of relatives and population structure
José Crossa,Juan Burgueño,Susanne Dreisigacker,Mateo Vargas,S. A. Herrera-Foessel,Morten Lillemo,Ravi P. Singh,Richard Trethowan,Marilyn L. Warburton,Jorge Franco,Matthew P. Reynolds,Jonathan H. Crouch,Rodomiro Ortiz +12 more
TL;DR: Mapped diversity array technology markers were used to find associations with resistance to stem rust, leaf rust, yellow rust, and powdery mildew, plus grain yield in five historical wheat international multienvironment trials from the International Maize and Wheat Improvement Center.
Journal ArticleDOI
Genome-Wide Association Mapping for Seedling and Adult Plant Resistance to Stripe Rust in Synthetic Hexaploid Wheat
TL;DR: The results confirm that resynthesized wheat involving its progenitor species is a rich source of new stripe (yellow) rust resistance that may be useful in choosing SHWs and incorporating diverse yellow rust (YR) resistance loci into locally adapted wheat cultivars.
Journal ArticleDOI
Breeding triple rust resistant wheat cultivars for Australia using conventional and marker-assisted selection technologies
TL;DR: Major genes for resistance to stem rust and leaf rust are being used in the back-crossing program of the ACRCP to create genetic diversity among Australian germplasm.
Journal ArticleDOI
Mapping of adult plant stripe rust resistance genes in diploid A genome wheat species and their transfer to bread wheat
Parveen Chhuneja,Satinder Kaur,Tosh Garg,Meenu Ghai,Simarjit Kaur,M. Prashar,Navtej Singh Bains,R. K. Goel,Beat Keller,Harcharan Singh Dhaliwal,Harcharan Singh Dhaliwal,Kuldeep Singh +11 more
TL;DR: Genetic analysis of the RIL population revealed the presence of two genes for stripe rust resistance, with one gene each being contributed by each of the parental lines, and two QTLs, one each in T. monococcum acc.
Journal ArticleDOI
A walk on the wild side: mining wild wheat and barley collections for rust resistance genes
TL;DR: The results from this study indicate that Sharon goatgrass and wild barley are rich sources of rust resistance genes for cultivated wheat and barley improvement, respectively, and that association mapping may be useful for positioning disease resistance genes in wild barley.
References
More filters
Journal ArticleDOI
A high-density microsatellite consensus map for bread wheat (Triticum aestivum L.)
TL;DR: This consensus map represents the highest-density public microsatellite map of wheat and is accompanied by an allele database showing the parent allele sizes for every marker mapped, which enables users to predict allele sizes in new breeding populations and develop molecular breeding and genomics strategies.
Journal ArticleDOI
Microsatellite-based deletion bin system for the establishment of genetic-physical map relationships in wheat (Triticum aestivum L.).
Pierre Sourdille,Sukhwinder Singh,T. Cadalen,G. L. Brown-Guedira,Lili Qi,Bikram S. Gill,Philippe Dufour,Alain Murigneux,Michel Bernard +8 more
TL;DR: The mapped microsatellite loci will be useful not only for deletion stock verifications but also for allocating associated QTLs to deletion bins where numerous ESTs that could be potential candidate genes are currently assigned.