Isolation and fine mapping of Rps6: an intermediate host resistance gene in barley to wheat stripe rust.

ABSTRACT:

Key message

We uncouple host and nonhost resistance in barley to Puccinia striiformis ff. spp. hordei and tritici . We isolate, fine map, and physically anchor Rps6 to chromosome 7H in barley. A plant may be considered a nonhost of a pathogen if all known genotypes of a plant species are resistant to all known isolates of a pathogen species. However, if a small number of genotypes are susceptible to some known isolates of a pathogen species this plant may be considered an intermediate host. Barley (Hordeum vulgare) is an intermediate host for Puccinia striiformis f. sp. tritici (Pst), the causal agent of wheat stripe rust. We wanted to understand the genetic architecture underlying resistance to Pst and to determine whether any overlap exists with resistance to the host pathogen, P

SUBMITTER: Dawson AM 

PROVIDER: S-EPMC4799244 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature