Gene presence-absence variation associates with quantitative Verticillium longisporum disease resistance in Brassica napus.

ABSTRACT: Although copy number variation (CNV) and presence-absence variation (PAV) have been discovered in selected gene families in most crop species, the global prevalence of these polymorphisms in most complex genomes is still unclear and their influence on quantitatively inherited agronomic traits is still largely unknown. Here we analyze the association of gene PAV with resistance of oilseed rape (Brassica napus) against the important fungal pathogen Verticillium longisporum, as an example for a complex, quantitative disease resistance in the strongly rearranged genome of a recent allopolyploid crop species. Using Single Nucleotide absence Polymorphism (SNaP) markers to efficiently trace PAV in breeding populations, we significantly increased the resolution of loci influencing V. longisporum r

SUBMITTER: Gabur I 

PROVIDER: S-EPMC7057980 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature