Association mapping of drought tolerance-related traits in barley to complement a traditional biparental QTL mapping study.

ABSTRACT:

Key message

Association mapping of drought-related traits in barley was used to increase the density of existing QTL maps without recreating mapping populations. We used 109 spring barley genotypes exhibiting high or low drought tolerance to elucidate the associations between diversity array technology sequencing (DArTseq) and single nucleotide polymorphism (SNP) markers and various physiological parameters related to plant responses to drought conditions. The study was performed in controlled conditions (growth chambers), drought tolerance was phenotyped in the four-leaf seedlings. We identified 58 associations including 34 new markers (i.e., 16 DArTseq and 18 SNP markers). The results for three markers were consistent with the data obtained in an earlier traditional biparental QT

SUBMITTER: Wojcik-Jagla M 

PROVIDER: S-EPMC5750332 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature