Genome-Wide Association Mapping for Heat and Drought Adaptive Traits in Pea.

ABSTRACT: Heat and drought, individually or in combination, limit pea productivity. Fortunately, substantial genetic diversity exists in pea germplasm for traits related to abiotic stress resistance. Understanding the genetic basis of resistance could accelerate the development of stress-adaptive cultivars. We conducted a genome-wide association study (GWAS) in pea on six stress-adaptive traits with the aim to detect the genetic regions controlling these traits. One hundred and thirty-five genetically diverse pea accessions were phenotyped in field studies across three or five environments under stress and control conditions. To determine marker trait associations (MTAs), a total of 16,877 valuable single nucleotide polymorphisms (SNPs) were used in association analysis. Association mapping detected

SUBMITTER: Tafesse EG 

PROVIDER: S-EPMC8701326 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature