Phylogeny and Morphology of Novel Labyrinthulomycetes in Nova Scotia, Canada.
- 1Department of Biochemistry & Molecular Biology, Dalhousie University, Halifax, Nova Scotia, Canada.
- 2Institute for Comparative Genomics, Dalhousie University, Canada.
Abstract
Labyrinthulomycetes are ubiquitous marine decomposers and include the thraustochytrids, a lineage known for their extensive production of polyunsaturated fatty acids and biotechnology applications. Despite historical taxonomic confusion, environmental surveys have begun to expand the known diversity within labyrinthulomycetes. Here we present 18S ribosomal DNA sequences from 17 novel labyrinthulomycete strains established as cultures from natural samples taken from three locations in Nova Scotia, Canada. We also present light and transmission electron microscopic analysis for three of these isolates. The combination of phylogenetic and morphological analysis suggests that these isolates belong to three different genera: Thraustochytrium, Ulkenia and Oblongichytrium. Our results expand the known genetic diversity of labyrinthulomycetes in Atlantic Canadian waters, contributing new strains to understudied genera for future comparative genomic investigations, including Ulkenia and Oblongichytrium for which very few genomic resources are available.
Related
- Morphology, molecular phylogeny and azaspiracid profile of Azadinium poporum (Dinophyceae) from the Gulf of Mexico
- Morphology and Phylogeny of Four Marine Scuticociliates (Protista, Ciliophora), with Descriptions of Two New Species: Pleuronema elegans spec. nov. and Uronema orientalis spec. nov.
- Hindlimb Muscle Morphology and Function in a New Atrophy Model Combining Spinal Cord Injury and Cast Immobilization
- Insulin fails to mitigate amyloid pathology but modulates intestinal morphology in the 5xFAD model revealed by synchrotron-based XPCT
- Improving Molecular-Morphology Contrastive Pretraining using Deep-Learning-based Morphology Profiles
BibTeX
@article{latimer2026phylogeny,
title = {{Phylogeny and Morphology of Novel Labyrinthulomycetes in Nova Scotia, Canada.}},
author = {Jessica Latimer and Eda Ozsan and T J Goertz and Gurnoor Kaur and Dudley Chung and John M Archibald},
journal = {The Journal of eukaryotic microbiology},
year = {2026},
month = oct,
doi = {10.1111/jeu.70135},
url = {https://europepmc.org/article/MED/42924523},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Phylogeny and Morphology of Novel Labyrinthulomycetes in Nova Scotia, Canada.
AU - Jessica Latimer
AU - Eda Ozsan
AU - T J Goertz
AU - Gurnoor Kaur
AU - Dudley Chung
AU - John M Archibald
PY - 2026
DA - 2026/10/30
JO - The Journal of eukaryotic microbiology
DO - 10.1111/jeu.70135
UR - https://europepmc.org/article/MED/42924523
AB - Labyrinthulomycetes are ubiquitous marine decomposers and include the thraustochytrids, a lineage known for their extensive production of polyunsaturated fatty acids and biotechnology applications. Despite historical taxonomic confusion, environmental surveys have begun to expand the known diversity within labyrinthulomycetes. Here we present 18S ribosomal DNA sequences from 17 novel labyrinthulomycete strains established as cultures from natural samples taken from three locations in Nova Scotia, Canada. We also present light and transmission electron microscopic analysis for three of these isolates. The combination of phylogenetic and morphological analysis suggests that these isolates belong to three different genera: Thraustochytrium, Ulkenia and Oblongichytrium. Our results expand the known genetic diversity of labyrinthulomycetes in Atlantic Canadian waters, contributing new strains to understudied genera for future comparative genomic investigations, including Ulkenia and Oblongichytrium for which very few genomic resources are available.
SN - 1066-5234
SN - 1550-7408
ER -