Linkage and association mapping of ovule number per ovary (ON) in oilseed rape (Brassica napus L.).

ABSTRACT: Ovule number (ON) produced during flower development determines the maximum number of seeds per silique and thereby affects crop productivity; however, the genetic basis of ON remains poorly understood in oilseed rape (Brassica napus). In this study, we genetically dissected the ON variations in a double haploid (DH) population and in natural population (NP) by linkage mapping and genome-wide association analysis. Phenotypic analysis showed that ON displayed normal distribution in both populations with the broad-sense heritability of 0.861 (DH population) and 0.930 (natural population). Linkage mapping identified 5 QTLs related to ON, including qON-A03, qON-A07, qON-A07-2, qON-A10, and qON-C06. Genome-wide association studies (GWAS) revealed 214, 4

SUBMITTER: Ahmad A 

PROVIDER: S-EPMC10248604 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature