Unraveling the genomic regions controlling the seed vigour index, root growth parameters and germination per cent in rice.

ABSTRACT: High seed vigour ensures good quality seed and higher productivity. Early seedling growth parameters indicate seed vigour in rice. Seed vigour via physiological growth parameters is a complex trait controlled by many quantitative trait loci. A panel was prepared representing a population of 274 rice landraces by including genotypes from all the phenotypic groups of sixseedling stage physiological parameters including germination % for association mapping. Wide variations for the six studiedtraits were observed in the population. The population was classified into 3 genetic groups. Fixation indices indicated the presence of linkage disequilibrium in the population. The population was classified into subpopulations and each subpopulation showed correspondence with the 6 physiological traits.

SUBMITTER: Barik SR 

PROVIDER: S-EPMC9321372 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature