作者
PM Dracatos, NOI Cogan, Mark P Dobrowolski, TI Sawbridge, GC Spangenberg, Kevin Francis Smith, JW Forster
发表日期
2008/7
期刊
Theoretical and Applied Genetics
卷号
117
期号
2
页码范围
203-219
出版商
Springer-Verlag
简介
Susceptibility to foliar pathogens commonly causes significant reductions in productivity of the important temperate forage perennial ryegrass. Breeding for durable disease resistance involves not only the deployment of major genes but also the additive effects of minor genes. An approach based on in vitro single nucleotide polymorphism (SNP) discovery in candidate defence response (DR) genes has been used to develop potential diagnostic genetic markers. SNPs were predicted, validated and mapped for representatives of the pathogenesis-related (PR) protein-encoding and reactive oxygen species (ROS)-generating gene classes. The F1(NA6 × AU6) two-way pseudo-test cross population was used for SNP genetic mapping and detection of quantitative trait loci (QTLs) in response to a crown rust field infection. Novel resistance QTLs were coincident with mapped DR gene SNPs. QTLs on LG3 and …
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PM Dracatos, NOI Cogan, MP Dobrowolski… - Theoretical and Applied Genetics, 2008