Comparative analyses identify the contributions of exotic donors to disease resistance in a barley experimental population.

ABSTRACT: Introgression of novel genetic variation into breeding populations is frequently required to facilitate response to new abiotic or biotic pressure. This is particularly true for the introduction of host pathogen resistance in plant breeding. However, the number and genomic location of loci contributed by donor parents are often unknown, complicating efforts to recover desired agronomic phenotypes. We examined allele frequency differentiation in an experimental barley breeding population subject to introgression and subsequent selection for Fusarium head blight resistance. Allele frequency differentiation between the experimental population and the base population identified three primary genomic regions putatively subject to selection for resistance. All three genomic regions have been pre

SUBMITTER: Fang Z 

PROVIDER: S-EPMC3815057 | biostudies-literature | 2013 Nov

REPOSITORIES: biostudies-literature