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Phylogeny and taxonomy of Halimeda incrassata, including descriptions of H. kanaloana and H. heteromorpha spp. nov. (Bryopsidales, Chlorophyta)

Verbruggen, H. and De Clerck, O. and De Ramon N'Yeurt, Antoine and Spalding, H. and Vroom, P.S. (2006) Phylogeny and taxonomy of Halimeda incrassata, including descriptions of H. kanaloana and H. heteromorpha spp. nov. (Bryopsidales, Chlorophyta). European Journal of Phycology, 41 (3). pp. 337-362. ISSN 0967-0262

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    Abstract

    The tropical green algal genus Halimeda is one of the best studied examples of pseudo-cryptic diversity within the algae. Previous molecular and morphometric studies revealed that within Halimeda section Rhipsalis, Halimeda incrassata included three pseudo-cryptic entities and that the morphological boundaries between H. incrassata and Halimeda melanesica were ill-defined. In this paper, the taxonomy of H. incrassata is revised: two pseudo cryptic entities are described as new species, Halimeda kanaloana and Halimed heteromorpha, while H. incrassata is redefined to encompass a single, monophyletic entity. Similarities and differences between the three species and H. melanesica are discussed. Monophyly of H. heteromorpha, which was questioned in a former study, is reinvestigated using sets of 32 ITS1–ITS2 and 21 plastid rps3 sequences and various alignment and inference methods. The phylogenetic relationships within Halimeda section Rhipsalis are inferred from nuclear 18S–ITS1–5.8S–ITS2 and concatenated plastid sequences (tufA & rpl5–rps8–infA) and interpreted in a biogeographic context.

    Item Type: Journal Article
    Uncontrolled Keywords: anatomy, Halimeda incrassata, H. heteromorpha, H. kanaloana, H. melanesica, morphology, phylogeny, taxonomy
    Subjects: Q Science > QH Natural history > QH301 Biology
    Q Science > QH Natural history > QH426 Genetics
    Q Science > QK Botany
    Q Science > QL Zoology
    Divisions: Pacific Centre for Environment and Sustainable Development (PACE-SD)
    Depositing User: Antoine N'Yeurt
    Date Deposited: 07 Oct 2014 12:56
    Last Modified: 07 Oct 2014 12:56
    URI: http://repository.usp.ac.fj/id/eprint/7617
    UNSPECIFIED

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