Rozellomyces: Phylogenomics and Distribution of a Marine Parasite

Hurdeal et al. describe a new rozellid parasite, Rozellomyces, isolated from the Gulf of Alaska. The dataset includes phylogenomic analysis based on 238 genes and amplicon sequence variants (ASVs) from the metaPR2 database to map its geographic distribution. This research provides insights into the diversity and ecological role of Rozellomycota parasites infecting the diatom Thalassiosira.

Use Cases

• Phylogenetic placement of a new taxon based on 238-gene phylogenomic analysis.
• Mapping the geographic distribution of a marine parasite using amplicon sequence variants (ASVs).
• Studying host-parasite interactions between Rozellomycota and the diatom genus Thalassiosira.
• Investigating the ecological role of parasitic microorganisms in marine carbon and nutrient cycling.

Strengths

• Includes phylogenomic analysis based on 238 genes for robust taxonomic placement.
• Leverages ASV data from the metaPR2 database to infer broad geographic distribution.
• Dataset is openly licensed under CC-BY-4.0, facilitating reuse.

Limitations

• Column names and row counts are not provided in any source, limiting understanding of data structure.
• One source lists a file size of 652253 bytes, but the nature and format of the data files are unknown.
• Sources disagree on the last updated date (2026-02-21 vs. 2026-03-23), creating ambiguity about freshness.

Provenance

Source

Hurdeal, Vedprakash Godadhar; Borealis Harvested Dataverse.

Collection Method

Single-cell isolation from the Gulf of Alaska, followed by phylogenomic analysis and ASV matching from the metaPR2 database.

Freshness

Last updated 2026-03-23 (most recent date across platforms).

Geography

Gulf of Alaska (isolation site); global distribution inferred from metaPR2 ASVs.