Genetics of Germination and Seedling Traits under Drought Stress in a MAGIC Population of Maize.

ABSTRACT: Drought is one of the most detrimental abiotic stresses hampering seed germination, development, and productivity. Maize is more sensitive to drought than other cereals, especially at seedling stage. Our objective was to study genetic regulation of drought tolerance at germination and during seedling growth in maize. We evaluated 420 RIL with their parents from a multi-parent advanced generation inter-cross (MAGIC) population with PEG-induced drought at germination and seedling establishment. A genome-wide association study (GWAS) was carried out to identify genomic regions associated with drought tolerance. GWAS identified 28 and 16 SNPs significantly associated with germination and seedling traits under stress and well-watered conditions, respectively. Among the SNPs detected, two SNPs h

SUBMITTER: Rida S 

PROVIDER: S-EPMC8468063 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature