title: Molecular Phylogeny of the Parasitic Dinoflagellate Chytriodinium within the Gymnodinium Clade (Gymnodiniales, Dinophyceae).
abstract: The dinoflagellate genus Chytriodinium, an ectoparasite of copepod eggs, is reported for the first time in the North and South Atlantic Oceans. We provide the first large subunit rDNA (LSU rDNA) and Internal Transcribed Spacer 1 (ITS1) sequences, which were identical in both hemispheres for the Atlantic Chytriodinium sp. The first complete small subunit ribosomal DNA (SSU rDNA) of the Atlantic Chytriodinium sp. suggests that the specimens belong to an undescribed species. This is the first evidence of the split of the Gymnodinium clade: one for the parasitic forms of Chytriodiniaceae (Chytriodinium, Dissodinium), and other clade for the free-living species.
authors.affiliation: Laboratory of Plankton Systems, Oceanographic Institute, University of São Paulo, São Paulo, Brazil.
authors.forename: Fernando
authors.initials: F
authors.lastname: Gómez
authors.forename: Alf
authors.initials: A
authors.lastname: Skovgaard
mesh_terms: D000818:Animals; D001267:Atlantic Ocean; D016000:Cluster Analysis; D033342:Copepoda / Q000469:parasitology; D016054:DNA, Protozoan / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D021903:DNA, Ribosomal Spacer / Q000737:chemistry / Q000235:genetics; D004141:Dinoflagellida / Q000145:classification* / Q000235:genetics* / Q000302:isolation & purification; D010802:Phylogeny; D012335:RNA, Ribosomal / Q000235:genetics; D012337:RNA, Ribosomal, 18S / Q000235:genetics; D017422:Sequence Analysis, DNA
chemical_list: D016054:DNA, Protozoan; D004275:DNA, Ribosomal; D021903:DNA, Ribosomal Spacer; D012335:RNA, Ribosomal; D012337:RNA, Ribosomal, 18S; C065096:RNA, ribosomal, 26S
keywords: Copepod; Dissodinium; Gymnodinium sensu stricto; parasite Dinophyta; parasitism