Genomic Signatures of a Major Adaptive Event in the Pathogenic Fungus Melampsora larici-populina.

ABSTRACT: The recent availability of genome-wide sequencing techniques has allowed systematic screening for molecular signatures of adaptation, including in nonmodel organisms. Host-pathogen interactions constitute good models due to the strong selective pressures that they entail. We focused on an adaptive event which affected the poplar rust fungus Melampsora larici-populina when it overcame a resistance gene borne by its host, cultivated poplar. Based on 76 virulent and avirulent isolates framing narrowly the estimated date of the adaptive event, we examined the molecular signatures of selection. Using an array of genome scan methods based on different features of nucleotide diversity, we detected a single locus exhibiting a consistent pattern suggestive of a selective sweep in virulent individua

SUBMITTER: Persoons A 

PROVIDER: S-EPMC8755504 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature