Genome diversity, population structure and MALDI-TOF MS profiling of Aspergillus oryzae/flavus strains from fermentation and wild environments.

ABSTRACT: Various strains of Aspergillus oryzae, regarded as a domesticated variant of aflatoxigenic Aspergillus flavus, are utilized in the soybean fermentation industry of Korea. This study compared A. oryzae/flavus strains isolated from various environments in Korea including industrial settings, Meju (brick of dried fermented soybeans), and wild conditions with globally reported strains using genomic analysis to determine their taxonomic positions and risk of mycotoxicity. Using population genomics, five distinct groups (A to E) were identified, with all aflatoxigenic Korean strains in Group C and non-aflatoxigenic Korean strains in Groups A, B, and E. Korean strains from Meju and wild conditions are distributed across Groups A and B, and most of the Korean industrial strains form a sub-cluster

SUBMITTER: Kim DH 

PROVIDER: S-EPMC12042432 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature