Genetic characterization of root architectural traits in barley (Hordeum vulgare L.) using SNP markers.

ABSTRACT: Increasing attention is paid to providing new tools to breeders for targeted breeding for specific root traits that are beneficial in low-fertility, drying soils; however, such information is not available for barley (Hordeum vulgare L.). A panel of 191 barley accessions (originating from Australia, Europe, and Africa) was phenotyped for 26 root and shoot traits using the semi-hydroponic system and genotyped using 21 062 high-quality single nucleotide polymorphism (SNP) markers generated by genotyping-by-sequencing (GBS). The population structure analysis of the barley panel identified six distinct groups. We detected 1199 significant (P<0.001) marker-trait associations (MTAs) with r² values up to 0.41. The strongest MTAs were found for root diameter in the top 20

SUBMITTER: Farooqi MQU 

PROVIDER: S-EPMC10582755 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature