Genome-wide association study of grain hardness and novel Puroindoline alleles in common wheat.

ABSTRACT: Grain hardness (HI) is a key trait for wheat milling and end-use quality. Puroindoline genes (PINs) are the major genes responsible for grain hardness, but other QTLs also contribute to the trait. Therefore, it is essential to identify loci associated with the HI and allelic variations of PINs in wheat. In the present study, 287 accessions from Shanxi province representing 70 years of wheat breeding were grown in one rainfed and two irrigated conditions to study grain hardness. Genome-wide association analysis (GWAS) was performed using the 15 K array, and the variability of PIN alleles was investigated. Among the accessions, hard wheat was most common. The broad-sense heritability (H²) among the three environments was 99.5%, suggesting

SUBMITTER: Wang J 

PROVIDER: S-EPMC10248618 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature