Genomic regions associated with heat stress tolerance in tropical maize (Zea mays L.).

ABSTRACT: With progressive climate change and the associated increase in mean temperature, heat stress tolerance has emerged as one of the key traits in the product profile of the maize breeding pipeline for lowland tropics. The present study aims to identify the genomic regions associated with heat stress tolerance in tropical maize. An association mapping panel, called the heat tolerant association mapping (HTAM) panel, was constituted by involving a total of 543 tropical maize inbred lines from diverse genetic backgrounds, test-crossed and phenotyped across nine locations in South Asia under natural heat stress. The panel was genotyped using a genotyping-by-sequencing (GBS) platform. Considering the large variations in vapor pressure deficit (VPD) at high temperature (Tmax) across different pheno

SUBMITTER: Seetharam K 

PROVIDER: S-EPMC8253795 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature