Overview
My research focuses on the genetic underpinnings of mating type identity and pathogenicity in fungi. It began with the identification of gene sets governing sexual reproduction in basidiomycete red-pigmented yeasts and has since expanded to the complex dynamics of mating-type chromosome evolution in both pathogenic and non-pathogenic Cryptococcus and Kwoniella species. Leveraging whole-genome analyses, my current work also aims to explore the evolutionary and ecological origins of fungal pathogens and to identify the distinct genetic traits that differentiate pathogenic from closely related non-pathogenic species. This research is pivotal for understanding the nuances of fungal reproductive biology and the mechanisms driving pathogen development and adaptation.
Current Appointments & Affiliations
Recent Publications
Genomic and phenotypic insights into the expanding phylogenetic landscape of the Cryptococcus genus.
Journal Article PLoS Genet · November 2025 The fungal genus Cryptococcus includes several life-threatening human pathogens as well as diverse saprobic species whose genome architecture, ecology, and evolutionary history remain less well characterized. Understanding how some lineages evolved into ma ... Full text Open Access Link to item CiteGenomic and phenotypic insights into the expanding phylogenetic landscape of the Cryptococcus genus.
Preprint · October 28, 2025 Full text Link to item CiteThe complex evolution and genomic dynamics of mating-type loci in Cryptococcus and Kwoniella.
Journal Article PLoS Biol · October 2025 Sexual reproduction in basidiomycete fungi is governed by MAT loci (P/R and HD), which exhibit remarkable evolutionary plasticity, characterized by expansions, rearrangements, and gene losses often associated with mating system transitions. The sister gene ... Full text Link to item CiteRecent Grants
RNAi-dependent epimutation roles in antimicrobial drug resistance and pathogenesis
ResearchPostdoctoral Associate · Awarded by National Institute of Allergy and Infectious Diseases · 2022 - 2027Impact of RNAi and unisexual reproduction on Cryptococcus evolution, drug resistance, and pathogenesis
ResearchAssistant Research Professor · Awarded by National Institute of Allergy and Infectious Diseases · 1997 - 2026Structure, function, and evolution of the Cryptococcus MAT locus
ResearchSenior Research Associate · Awarded by National Institute of Allergy and Infectious Diseases · 2002 - 2025View All Grants