The molecular phylogeny of the type-species of Oodinium Chatton, 1912 (Dinoflagellata: Oodiniaceae), a highly divergent parasitic dinoflagellate with non-dinokaryotic characters
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The molecular phylogeny of the type-species of Oodinium Chatton, 1912 (Dinoflagellata: Oodiniaceae), a highly divergent parasitic dinoflagellate with non-dinokaryotic characters. / Gómez, Fernando; Skovgaard, Alf.
I: Systematic Parasitology, Bind 90, Nr. 2, 2015, s. 125-135.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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T1 - The molecular phylogeny of the type-species of Oodinium Chatton, 1912 (Dinoflagellata: Oodiniaceae), a highly divergent parasitic dinoflagellate with non-dinokaryotic characters
AU - Gómez, Fernando
AU - Skovgaard, Alf
PY - 2015
Y1 - 2015
N2 - Oodinium pouchetii (Lemmermann, 1899) Chatton, 1912, the first described parasitic dinoflagellate, is the type of the Oodiniaceae Chatton, 1920. In the taxonomical schemes, this family of metazoan parasites includes Amyloodinium Brown & Hovasse, 1946 and Piscinoodinium Lom, 1981 that are responsible of important damages in fish aquaculture. Species of Oodinium Chatton, 1912 have unique characteristics such as the possession of both non-dinokaryotic and dinokaryotic nuclei within the life-cycle, and the absence of the transversal (cingulum) and longitudinal (sulcus) surface grooves in the parasitic stage. We provide the first molecular data for the genus Oodinium from specimens of O. pouchetii infecting the chordate Oikopleura sp. (Tunicata: Appendicularia) off the coasts of Brazil. Although O. pouchetii lacks dinokaryotic characters in the parasitic stage, the SSU rDNA phylogeny revealed that it forms a distinct fast-evolved clade that branches among the dinokaryotic dinoflagellates. However, there is no clear relationship with other dinoflagellates. Hence, the taxonomic affinity of the family Oodiniaceae is unclear at the moment.
AB - Oodinium pouchetii (Lemmermann, 1899) Chatton, 1912, the first described parasitic dinoflagellate, is the type of the Oodiniaceae Chatton, 1920. In the taxonomical schemes, this family of metazoan parasites includes Amyloodinium Brown & Hovasse, 1946 and Piscinoodinium Lom, 1981 that are responsible of important damages in fish aquaculture. Species of Oodinium Chatton, 1912 have unique characteristics such as the possession of both non-dinokaryotic and dinokaryotic nuclei within the life-cycle, and the absence of the transversal (cingulum) and longitudinal (sulcus) surface grooves in the parasitic stage. We provide the first molecular data for the genus Oodinium from specimens of O. pouchetii infecting the chordate Oikopleura sp. (Tunicata: Appendicularia) off the coasts of Brazil. Although O. pouchetii lacks dinokaryotic characters in the parasitic stage, the SSU rDNA phylogeny revealed that it forms a distinct fast-evolved clade that branches among the dinokaryotic dinoflagellates. However, there is no clear relationship with other dinoflagellates. Hence, the taxonomic affinity of the family Oodiniaceae is unclear at the moment.
U2 - 10.1007/s11230-014-9538-8
DO - 10.1007/s11230-014-9538-8
M3 - Journal article
C2 - 25655112
VL - 90
SP - 125
EP - 135
JO - Systematic Parasitology
JF - Systematic Parasitology
SN - 0165-5752
IS - 2
ER -
ID: 132588749