Molecular tagging of seed size using MITE markers in an induced large seed mutant with higher cotyledon cell size in groundnut.

ABSTRACT: A large seed mutant, TG 89 having a 76.7% increment in hundred kernel weight in comparison to its parent TG 26, was isolated from an electron beam-induced mutagenized population. Studies based on environmental scanning electron microscopy of both parent and mutant revealed that the mutant seed cotyledon had significantly bigger cell size than parent. A mapping population with 122 F₂ plants derived from the mutant and a distant normal seed genotype (ICGV 15007) was utilized to map the QTL associated with higher HKW. Bulk segregant analysis revealed putative association of three markers with this mutant large seed trait. Further, genotyping of F₂ individuals with polymorphic markers detected 14 linkage groups with a map distance of 1053 cM. QTL analysis revealed a signi

SUBMITTER: Bhad PG 

PROVIDER: S-EPMC10825088 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature