Mapping and validation of Fusarium wilt race 2 resistance QTL from Citrullus amarus line USVL246-FR2.

ABSTRACT:

Key message

Fon race 2 resistant QTLs were identified on chromosomes 8 and 9. Families homozygous for resistance alleles at a haplotype of three KASP markers had 42% lower disease severity than those with susceptible alleles in an independent, interspecific validation population confirming their utility for introgression of Fusarium wilt resistance. Fusarium oxysporum f. sp. niveum (Fon) race 2 causes Fusarium wilt in watermelon and threatens watermelon production worldwide. Chemical management options are not effective, and no resistant edible watermelon cultivars have been released. Implementation of marker-assisted selection to develop resistant cultivars requires identifying sources of resistance and the underlying quantitative trait loci (QTL), developing molecular markers ass

SUBMITTER: Ganaparthi VR 

PROVIDER: S-EPMC10982098 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature