Supplementary data – Genome-wide association study of M. anserisalpingitidis strains for antibiotic susceptibility – Kovács, 2026

Understanding the molecular basis of antimicrobial resistance mechanisms is crucial in the preservation of antibiotic efficiency. This study aimed to elucidate the genetic background of antibiotic susceptibility profiles of 110 M. anserisalpingitidis strains against nine antimicrobial agents.

Significant associations between k-mers and five (tylvalosin, tilmicosin, enrofloxacin, lincomycin, spectinomycin) of the nine antimicrobial agents were identified by pyseer. Significant associations were found in multiple coding sequences that encode various members of efflux pumps, epigenetic regulation and topoisomerases among many other groups of functions. Certain k-mers associated with genes found putative prophage-like sequences suggest potential horizontal gene transfer events that could facilitate the acquisition of novel resistance mechanisms.