Multi-population GWAS detects robust marker associations in a newly established six-rowed winter barley breeding program.

ABSTRACT: Genome-wide association study (GWAS) is a powerful tool for identifying marker-trait associations that can accelerate breeding progress. Yet, its power is typically constrained in newly established breeding programs where large phenotypic and genotypic datasets have not yet accumulated. Expanding the dataset by inclusion of data from well-established breeding programs with many years of phenotyping and genotyping can potentially address this problem. In this study we performed single- and multi-population GWAS on heading date and lodging in four barley breeding populations with varying combinations of row-type and growth habit. Focusing on a recently established 6-rowed winter (6RW) barley population, single-population GWAS hardly resulted in any significant associations. Nevertheless, the

SUBMITTER: Skovbjerg CK 

PROVIDER: S-EPMC11724117 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature