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Single-cell transcriptomics reveals a new marine parasite: characterization and distribution of Rozellomyces from the Gulf of Alaska Hurdeal, Vedprakash Godadhar; Cooney, Elizabeth; Gordon, Lax; Bonacolta, Anthony; Keeling, Patrick; Fast, Naomi

Description

Here, we describe a new rozellid isolate from the Gulf of Alaska. Phylogenomic analysis based on 238 genes confirms its placement within Rozellomycota and its distinctness from currently described taxa. We identified ASVs from the metaPR2 database to recover its geographic distribution. Our isolate is an endoparasite of the diatom Thalassiosira, a primary producer in marine ecosystems that plays a critical role in global carbon and nutrient cycling. Phylogenetic and ecological evidence supports the establishment of a new genus within Rozellomycota, Rozellomyces. Our findings provide new insights into the diversity, distribution, and ecological roles of Rozellomycota, highlighting the need for further research on these parasites in marine ecosystems.

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Title	Single-cell transcriptomics reveals a new marine parasite: characterization and distribution of Rozellomyces from the Gulf of Alaska
Creator	Hurdeal, Vedprakash Godadhar; Cooney, Elizabeth; Gordon, Lax; Bonacolta, Anthony; Keeling, Patrick; Fast, Naomi
Contributor	Hurdeal, Vedprakash Godadhar
Date Issued	2026-02-17
Description	Here, we describe a new rozellid isolate from the Gulf of Alaska. Phylogenomic analysis based on 238 genes confirms its placement within Rozellomycota and its distinctness from currently described taxa. We identified ASVs from the metaPR2 database to recover its geographic distribution. Our isolate is an endoparasite of the diatom Thalassiosira, a primary producer in marine ecosystems that plays a critical role in global carbon and nutrient cycling. Phylogenetic and ecological evidence supports the establishment of a new genus within Rozellomycota, Rozellomyces. Our findings provide new insights into the diversity, distribution, and ecological roles of Rozellomycota, highlighting the need for further research on these parasites in marine ecosystems.
Subject	Earth and Environmental Sciences; Rozellomycota; Phylogenomics; Thalassiosira; Parasite; Geographical Distribution
Geographic Location	Alaska
Type	Dataset
Date Available	2025-05-21
Provider	University of British Columbia Library
License	CC-BY 4.0
DOI	10.14288/1.0451502
URI	https://doi.org/10.5683/SP3/MD2OPV
Publisher DOI	https://doi.org/10.5683/SP3/MD2OPV
Rights URI	http://creativecommons.org/licenses/by/4.0
Country	United States
Aggregated Source Repository	Dataverse

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CC-BY 4.0