RRC ID 21714
著者 Gottschling M, Keupp H, Plötner J, Knop R, Willems H, Kirsch M.
タイトル Phylogeny of calcareous dinoflagellates as inferred from ITS and ribosomal sequence data.
ジャーナル Mol Phylogenet Evol
Abstract The phylogenetic relationships of calcareous dinoflagellates (i.e., Calciodinellaceae and Thoracosphaera) are investigated. Molecular data from the ribosomal 5.8S rRNA and highly conserved motifs of the ITS1 show Calciodinellaceae s.l. to be monophyletic when few non-calcareous taxa are included. They segregate into three monophyletic assemblages in a molecular analysis that considers the 5.8S rRNA and both the Internal Transcribed Spacer regions ITS1 and ITS2: a clade comprising species of Ensiculifera and Pentapharsodinium (E/P-clade), Scrippsiella s.l. (including fossil-based taxa such as Calciodinellum and Calcigonellum), and a heterogeneous group (T/P-clade) of calcareous (e.g., Thoracosphaera) and non-calcareous taxa (e.g., the highly toxic Pfiesteria). The potential to produce calcareous structures is considered as apomorphic within alveolates, and non-calcareous taxa nesting with calcareous dinoflagellates may have reduced calcification secondarily. Molecular results do not contradict general evolutionary scenarios provided by previous morphological (mainly paleontological) investigations.
巻・号 36(3)
ページ 444-55
公開日 2005-9-1
DOI 10.1016/j.ympev.2005.03.036
PII S1055-7903(05)00167-3
PMID 15964218
MeSH Animals Base Sequence DNA, Ribosomal Spacer / genetics* Dinoflagellida / classification* Dinoflagellida / genetics* Molecular Sequence Data Phylogeny* RNA, Ribosomal, 5.8S / genetics* Sequence Alignment
IF 3.496
引用数 62
WOS 分野 GENETICS & HEREDITY BIOCHEMISTRY & MOLECULAR BIOLOGY EVOLUTIONARY BIOLOGY
リソース情報
藻類 NIES-7 NIES-684 NIES-369