Contrasting genetic regulation of plant development in wild barley grown in two European environments revealed by nested association mapping.

ABSTRACT: Barley is cultivated more widely than the other major world crops because it adapts well to environmental constraints, such as drought, heat, and day length. To better understand the genetic control of local adaptation in barley, we studied development in the nested association mapping population HEB-25, derived from crossing 25 wild barley accessions with the cultivar 'Barke'. HEB-25 was cultivated in replicated field trials in Dundee (Scotland) and Halle (Germany), differing in regard to day length, precipitation, and temperature. Applying a genome-wide association study, we located 60 and 66 quantitative trait locus (QTL) regions regulating eight plant development traits in Dundee and Halle, respectively. A number of QTLs could be explained by known major genes such as PHOTOPERIOD 1 (Pp

SUBMITTER: Herzig P 

PROVIDER: S-EPMC5888909 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature