Population structure analysis and genome-wide association study of a hexaploid oat landrace and cultivar collection.

ABSTRACT:

Introduction

Oat (Avena sativa L.) is an important cereal crop grown worldwide for grain and forage, owing to its high adaptability to diverse environments. However, the genetic and genomics research of oat is lagging behind that of other staple cereal crops.

Methods

In this study, a collection of 288 oat lines originating worldwide was evaluated using 2,213 single nucleotide polymorphism (SNP) markers obtained from an oat iSelect 6K-beadchip array to study its genetic diversity, population structure, and linkage disequilibrium (LD) as well as the genotype-phenotype association for hullessness and lemma color.

Results

The average gene diversity and polymorphic information content (PIC) were 0.324 and 0.262, respectively. The first three principal components (PC

SUBMITTER: Wang L 

PROVIDER: S-EPMC10070682 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature