Redefining Fusarium wilt Resistance QTLs in chickpea (Cicer arietinum L.) through physical and genetic mapping

ABSTRACT: This dataset contains genotypic, phenotypic, and marker-mapping information generated to refine genomic regions associated with Fusarium wilt (FW) resistance in chickpea. The study involved the in silico physical mapping of 46 previously reported FW-linked molecular markers onto the chickpea reference genome, followed by validation using a recombinant inbred line (RIL) population derived from the cross JG 62 × WR 315. Twenty-three markers were polymorphic between the parents and were used to genotype the RILs. Phenotyping was conducted under wilt sick-field and controlled pot experiments across seasons. Using newly designed and genic SSR markers, the FW-associated genomic regions on chromosomes 2 and 6 were saturated and refined. Ten genomic regions encompassing 1,578 genes and 2,250 genic SSR motifs were identified, and primer pairs were designed for 941 SSRs. QTL intervals were significantly narrowed—from 13.58 Mb to 4.53 Mb on chromosome 6, and from 6.48 Mb to 3.9 Mb on chromosome 2—resulting in more closely linked and reliable markers for FW resistance. This dataset supports marker-assisted selection and provides high-resolution genomic resources for chickpea breeding programs targeting Fusarium wilt resistance.

ORGANISM(S): Cicer arietinum

SUBMITTER: NAFLATH TV 

PROVIDER: S-BSST2325 | biostudies-other |

REPOSITORIES: biostudies-other