A novel way to identify specific powdery mildew resistance genes in hybrid barley cultivars.

ABSTRACT: Powdery mildew, a common cereal disease caused by the fungus Blumeria graminis, is a major limiting factor of barley production and genetic resistance is the most appropriate protection against it. To aid the breeding of new cultivars and their marketing, resistance genes can be postulated in homogeneous accessions. Although hybrid cultivars (F₁) should be homogeneous, they are often not genetically uniform, especially if more than two genotypes are involved in their seed production or due to undesirable self-pollination, out-crossing and mechanical admixtures. To overcome these problems the accepted method of postulating specific resistance genes based on comparing response type arrays (RTAs) of genetically homogeneous cultivars with RTAs of standard genotypes was substituted b

SUBMITTER: Dreiseitl A 

PROVIDER: S-EPMC7641246 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature