Genetic Diversity and Population Structure of Races of Fusarium oxysporum Causing Cotton Wilt.

ABSTRACT: To better understand the evolution of virulence we are interested in identifying the genetic basis of this trait in pathogenic fungi and in developing tools for the rapid characterization of variation in virulence among populations associated with epidemics. Fusarium oxysporum f. sp. vasinfectum (FOV) is a haploid fungus that causes devastating outbreaks of Fusarium wilt of cotton wherever it is grown. In the United States, six nominal races and eleven genotypes of FOV have been characterized based on the translation elongation factor (EF-1α) gene and intergenic spacer region (IGS), but it is unclear how race or genotype based on these regions relates to population structure or virulence. We used genotyping-by-sequencing to identify SNPs and determine genetic diversity

SUBMITTER: Halpern HC 

PROVIDER: S-EPMC7466959 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature