Genome-wide association study identifies quantitative trait loci associated with resistance to Verticillium dahliae race 3 in tomato.

ABSTRACT: Verticillium wilt (VW) disease, caused by Verticillium dahliae Kleb., is a major threat to tomato (Solanum lycopersicum L.) production. Identifying loci associated with VW resistance can accelerate breeding efforts and support sustainable disease management. Although the Ve1 and Ve2 genes confer resistance to V. dahliae races 1 and 2, the emergence of race 3 in the United States poses a new challenge. To investigate the genetic basis of quantitative resistance to the race 3 strain KJ14a, we evaluated 250 diverse tomato accessions. Disease severity and incidence were assessed weekly over 5 weeks, using chlorosis/necrosis percentage (CN_perc) and the number of symptomatic leaves (LC) as phenotypes. OmeSeq quantitative reduced-representation sequencing yielded 42,941 high-quality single nucle

SUBMITTER: Adhikari TB 

PROVIDER: S-EPMC12521801 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature