French Polynesian Scytosiphonaceae (Ectocarpales, Phaeophyceae) : A combined molecular and morphological approach to their diversity and systematics

© 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: 13. Apr., Seite 447-464
1. Verfasser: Vieira, Christophe (VerfasserIn)
Weitere Verfasser: Kim, Myung Sook, Zubia, Mayalen
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 Chnoospora Colpomenia Hydroclathrus Manzaea Pseudochnoospora Rosenvingea rbcL cox3
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500 |a Date Revised 15.04.2024 
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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 This study revisited the taxonomy and diversity of brown macroalgae within the Scytosiphonaceae family in French Polynesia, which had previously been recognized as encompassing only six species. Using the chloroplast and mitochondrial genes rbcL, psbA, and cox3 as molecular markers in conjunction with morpho-anatomical observations, we unveiled the presence of 11 species spanning six genera: Chnoospora minima, Colpomenia claytoniae, Co. sinuosa [groups IIIa and IIIb], Hydroclathrus rapanuii, H. tenuis, H. tilesii, Manzaea minuta, Pseudochnoospora implexa, Rosenvingea australis, and the newly described species R. polynesiensis sp. nov. and R. tahitiensis sp. nov. This encompasses the recognition of two previously unreported genera in this region: Manzaea and Pseudochnoospora. Sequences were successfully acquired for four taxa that had been documented previously, while the absence of sequences for H. clathratus and H. tumulis in French Polynesia raises queries about their presence in this region. With these additions, the total species count now stands at 13 (including H. clathratus and H. tumulis), one being an endemic species. The molecular-assisted alpha taxonomic approach used here allowed for a critical revision of the Scytosiphonaceae species checklist for French Polynesia. The diversity revealed in this region accounts for a substantial 20% of the family's global diversity. Additionally, our study presents an updated species-level phylogeny for the Scytosiphonaceae 
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650 4 |a Research Support, Non-U.S. Gov't 
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650 4 |a Pseudochnoospora 
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700 1 |a Kim, Myung Sook  |e verfasserin  |4 aut 
700 1 |a Zubia, Mayalen  |e verfasserin  |4 aut 
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