Genomics analysis of Aphanomyces spp. identifies a new class of oomycete effector associated with host adaptation

Background Oomycetesare a group of filamentous eukaryotic microorganisms that have colonized all terrestrial and oceanic ecosystems, and they include prominent plant pathogens. The Aphanomycesgenus is unique in its ability to infect both plant and animal species, and as such exemplifies oomyceteversatility in adapting to different hosts and environments. Dissecting the underpinningsof oomycetediversity provides insights into their specificity and pathogenic mechanisms.