RRC ID |
21714
|
Author |
Gottschling M, Keupp H, Plötner J, Knop R, Willems H, Kirsch M.
|
Title |
Phylogeny of calcareous dinoflagellates as inferred from ITS and ribosomal sequence data.
|
Journal |
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.
|
Volume |
36(3)
|
Pages |
444-55
|
Published |
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
|
Times Cited |
62
|
WOS Category
|
GENETICS & HEREDITY
BIOCHEMISTRY & MOLECULAR BIOLOGY
EVOLUTIONARY BIOLOGY
|
Resource |
Algae |
NIES-7
NIES-684
NIES-369 |