Genome-wide association mapping reveals novel genes associated with coleoptile length in a worldwide collection of barley.

ABSTRACT:

Background

Drought is projected to become more frequent and severe in a changing climate, which requires deep sowing of crop seeds to reach soil moisture. Coleoptile length is a key agronomic trait in cereal crops such as barley, as long coleoptiles are linked to drought tolerance and improved seedling establishment under early water-limited growing conditions.

Results

In this study, we detected large genetic variation in a panel of 328 diverse barley (Hordeum vulgare L.) accessions. To understand the overall genetic basis of barley coleoptile length, all accessions were germinated in the dark and phenotyped for coleoptile length after 2 weeks. The investigated barleys had significant variation for coleoptile length. We then conducted genome-wide association studies (GWASs)

SUBMITTER: Luo H 

PROVIDER: S-EPMC7374919 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature