Major chromosome 5H haplotype switch structures the European two-rowed spring barley germplasm of the past 190 years.

ABSTRACT:

Key message

Selection over 70 years has led to almost complete fixation of a haplotype spanning ~ 250 Mbp of chomosome 5H in European two-rowed spring barleys, possibly originating from North Africa. Plant breeding and selection have shaped the genetic composition of modern crops over the past decades and centuries and have led to great improvements in agronomic and quality traits. Knowledge of the genetic composition of breeding germplasm is essential to make informed decisions in breeding programs. In this study, we characterized the structure and composition of 209 barley cultivars representative of the European two-rowed spring barley germplasm of the past 190 years. Utilizing high-density SNP marker data, we identified a distinct centromeric haplotype spanning a ~ 250 Mbp larg

SUBMITTER: Wonneberger R 

PROVIDER: S-EPMC10361897 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature