期刊
PARASITOLOGY
卷 133, 期 -, 页码 43-53出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0031182006009942
关键词
Dactylogyridae; Ancyrocephalinae; Dactylogyrus; molecular phylogeny; large ribosomal subunit rDNA
类别
Phylogenetic analyses based on the partial large subunit rDNA (LSU) sequences of polyonchoinean mongeneans belonging to the Dactylogyridea and Monocotylidea were generated to investigate relationships among various Subfamilies of the Dactylogyridae sensu Kritsky & Boeger, 1989. Monophyly of the Dactylogyridae was supported by all analyses performed. Status of the Ancyrocephalidae sensu Bychowsky & Nagibina, 1978 and Ancyrocephalinae sensu Kritsky & Boeger, 1989 was revised based on the present data. All phylogenetic analyses indicated polyphyletic origins of the Ancyrocephalidae and Ancyrocephalinae. Freshwater species of Ancyrocephalinae (Actinocleidus, Ancyrocephalus, Cleidodiscus and Urocleidus) and Ancylodiscoidinae (Thaparocleidus) collected from the fish in European waters were positioned at the base of the Dactylogyridae. The Dactylogyrinae formed a monophyletic group), sister to a clade including the Pseudodactylogyrinae and the tropical and Subtropical Ancyrocephalinae. Analyses including only data set oil Dactylogyridea were focused on relationships between representatives of the Asian and European Dactylogyrus species. Dactylogyrus species formed a monophyletic group, and the parasite colonization appeared to follow the dispersal history of the Cyprinidae from Asia to Europe. Three lineages of Dactylogyrus species were recognized: the first including species specific to hosts of Asian origin, the second by Dactylogyrus species from Chinese fish hosts, and the third included Dactylogyrus species from European cyprinids and one species from a percid host. The position of D. cryptomeres from Gobio gobio seems to be unresolved.
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