Journal
JOURNAL OF PHYCOLOGY
Volume 52, Issue 2, Pages 305-310Publisher
WILEY
DOI: 10.1111/jpy.12383
Keywords
Chlamydomonas; cold adaptation; green algal phylogeny; Lake Bonney; Psychrophile
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Funding
- Natural Science and Engineering Research Council of Canada Discovery grants
- TATA Endowment Trust, Mumbai, India
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The Antarctic psychrophilic green alga Chlamy-domonas sp. UWO 241 is an emerging model for studying microbial adaptation to polar environments. However, little is known about its evolutionary history and its phylogenetic relationship with other chlamydomonadalean algae is equivocal. Here, we attempt to clarify the phylogenetic position of UWO 241, specifically with respect to Chlamydomonas rau-densis SAG 49.72. Contrary to a previous report, we show that UWO 241 is a distinct species from SAG 49.72. Our phylogenetic analyses of nuclear and plastid DNA sequences reveal that UWO 241 represents a unique lineage within the Moewusinia clade (sensu Nakada) of the Chlamydomonadales (Chlorophyceae, Chlorophyta), closely affiliated to the marine species Chlamydomonas parkeae SAG 24.89.
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