PHYLOGENETIC ANALYSIS OF PSEUDOCHLORODESMIS STRAINS REVEALS CRYPTIC DIVERSITY ABOVE THE FAMILY LEVEL IN THE SIPHONOUS GREEN ALGAE (BRYOPSIDALES, CHLOROPHYTA)(1)
© 2009 Phycological Society of America.
Veröffentlicht in: | Journal of phycology. - 1966. - 45(2009), 3 vom: 01. Juni, Seite 726-31 |
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1. Verfasser: | |
Weitere Verfasser: | , , , , |
Format: | Online-Aufsatz |
Sprache: | English |
Veröffentlicht: |
2009
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Zugriff auf das übergeordnete Werk: | Journal of phycology |
Schlagworte: | Journal Article Botryodesmis Bryopsidales Pseudochlorodesmis Siphonogramen cryptic diversity molecular phylogenetics thallus complexity |
Zusammenfassung: | © 2009 Phycological Society of America. The genus Pseudochlorodesmis (Bryopsidales) is composed of diminutive siphons of extreme morphological simplicity. The discovery of Pseudochlorodesmis-like juveniles in more complex Bryopsidales (e.g., the Halimeda microthallus stage) jeopardized the recognition of this genus. Confronted with this uncertainty, taxonomists transferred many simple siphons into a new genus, Siphonogramen. In this study, we used a multimarker approach to clarify the phylogenetic and taxonomic affinities of the Pseudochlorodesmis-Siphonogramen (PS) complex within the more morphologically complex bryopsidalean taxa. Our analyses reveal a new layer of diversity largely distinct from the lineages containing the structurally complex genera. The PS complex shows profound cryptic diversity exceeding the family level. We discuss a potential link between thallus complexity and the prevalence and profundity of cryptic diversity. For taxonomic simplicity and as a first step toward clarifying the taxonomy of these simple siphons, we propose to maintain Pseudochlorodesmis as a form genus and subsume Siphonogramen and Botryodesmis therein |
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Beschreibung: | Date Completed 04.04.2016 Date Revised 30.03.2022 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
ISSN: | 1529-8817 |
DOI: | 10.1111/j.1529-8817.2009.00690.x |