Mapping QTLs for yield and related traits in bread wheat under terminal heat stress.

ABSTRACT: To identify chromosomal regions and candidate genes controlling important wheat (Triticum aestivum L.) traits under heat stress, a doubled haploid population was developed from a cross between KSG0057, a selection out of PBW343 and KSG1190, a heat stress tolerant line. The population was evaluated for grain yield, 100-grain weight, grain weight of main spike, number of grains per main spike, number of spikelets per main spike, spike length, and plant height during 2016-2017 and 2017-2018 at two locations in India. Heat stress was applied by conducting trials under normal, late, and very late sown conditions. The mapping population was genotyped using sequencing-based genotyping to target the genic fraction of the genome. A 3875.3 cM linkage map was constructed via 674 high-quality single n

SUBMITTER: Relan A 

PROVIDER: S-EPMC12712777 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature