Mapping the Genomic Regions Controlling Germination Rate and Early Seedling Growth Parameters in Rice.

ABSTRACT: Seed vigor is the key performance parameter of good quality seed. A panel was prepared by shortlisting genotypes from all the phenotypic groups representing seedling growth parameters from a total of 278 germplasm lines. A wide variation was observed for the traits in the population. The panel was classified into four genetic structure groups. Fixation indices indicated the existence of linkage disequilibrium in the population. A moderate to high level of diversity parameters was assessed using 143 SSR markers. Principal component, coordinate, neighbor-joining tree and cluster analyses showed subpopulations with a fair degree of correspondence with the growth parameters. Marker-trait association analysis detected eight novel QTLs, namely qAGR4.1, qAGR6.1, qAGR6.2 and <

SUBMITTER: Mohanty SP 

PROVIDER: S-EPMC10138111 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature