Identification of Ideal Allele Combinations for the Adaptation of Spring Barley to Northern Latitudes.

ABSTRACT: The northwards expansion of barley production requires adaptation to longer days, lower temperatures and stronger winds during the growing season. We have screened 169 lines of the current barley breeding gene pool in the Nordic region with regards to heading, maturity, height, and lodging under different environmental conditions in nineteen field trials over 3 years at eight locations in northern and central Europe. Through a genome-wide association scan we have linked phenotypic differences observed in multi-environment field trials (MET) to single nucleotide polymorphisms (SNP). We have identified an allele combination, only occurring among a few Icelandic lines, that affects heat sum to maturity and requires 214 growing degree days (GDD) less heat sum to maturity than the most common a

SUBMITTER: Goransson M 

PROVIDER: S-EPMC6510284 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature