Rosetta gen. nov. (Chlorophyta) : Resolving the identity of red snow algal rosettes

© 2024 The Authors. Journal of Phycology published by Wiley Periodicals LLC on behalf of Phycological Society of America.

Bibliographische Detailangaben
Veröffentlicht in:Journal of phycology. - 1966. - 60(2024), 2 vom: 22. Apr., Seite 275-298
1. Verfasser: Engstrom, Casey B (VerfasserIn)
Weitere Verfasser: Raymond, Breanna B, Albeitshawish, Joud, Bogdanovic, Anastasia, Quarmby, Lynne M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Journal of phycology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Chlainomonas Chloromonas Sanguina Chloromonadinia morphology phylogeny single‐cell PCR taxonomy mehr... ultrastructure watermelon snow RNA, Ribosomal, 18S
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500 |a CommentIn: J Phycol. 2024 Apr;60(2):273-274. - PMID 38597572 
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520 |a © 2024 The Authors. Journal of Phycology published by Wiley Periodicals LLC on behalf of Phycological Society of America. 
520 |a Thick-walled rosette-like snow algae were long thought to be a life stage of various other species of snow algae. Rosette-like cells have not been cultured, but by manually isolating cells from 38 field samples in southern British Columbia, we assigned a variety of rosette morphologies to DNA sequence. Phylogenetic analysis of Rubisco large-subunit (rbcL) gene, ribosomal internal transcribed spacer 2 (ITS2) rRNA region, and 18S rRNA gene revealed that the rosette-like cells form a new clade within the phylogroup Chloromonadinia. Based on these data, we designate a new genus, Rosetta, which comprises five novel species: R. castellata, R. floranivea, R. stellaria, R. rubriterra, and R. papavera. In a survey of 762 snow samples from British Columbia, we observed R. floranivea exclusively on snow overlying high-elevation glaciers, whereas R. castellata was observed at lower elevations, near the tree line. The other three species were rarely observed. Spherical red cells enveloped in a thin translucent sac were conspecific with Rosetta, possibly a developmental stage. These results highlight the unexplored diversity among snow algae and emphasize the utility of single-cell isolation to advance the centuries-old problem of disentangling life stages and cryptic species 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Chlainomonas 
650 4 |a Chloromonas 
650 4 |a Sanguina 
650 4 |a Chloromonadinia 
650 4 |a morphology 
650 4 |a phylogeny 
650 4 |a single‐cell PCR 
650 4 |a taxonomy 
650 4 |a ultrastructure 
650 4 |a watermelon snow 
650 7 |a RNA, Ribosomal, 18S  |2 NLM 
700 1 |a Raymond, Breanna B  |e verfasserin  |4 aut 
700 1 |a Albeitshawish, Joud  |e verfasserin  |4 aut 
700 1 |a Bogdanovic, Anastasia  |e verfasserin  |4 aut 
700 1 |a Quarmby, Lynne M  |e verfasserin  |4 aut 
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