title: Molecular phylogenetic relationships among seven Japanese species of Cercopithifilaria.
abstract: DNA sequences from a portion of the mitochondrial COI gene were used to clarify phylogenetic relationships among Japanese species in the genus Cercopithifilaria. Sequences were determined from seven Japanese species, five (C. shohoi, C. multicauda, C. minuta, C. tumidicervicata and C. bulboidea) from the serow (Capricornis crispus F. Bovidae) and two (C. longa and C. crassa) from the sika deer (Cervus nippon nippon F. Cervidae). No base substitutions were observed between C. bulboidea and C. longa, suggesting that recent host switching of a lineage of C. bulboidea between bovid and cervid hosts gave rise to C. longa. In phylogenetic trees inferred using a variety of methods, the morphologically ancestral type, C. bulboidea, appeared as a derived species. C. multicauda was found to be basal in the analyses. It seems therefore that C. multicauda is the most primitive out of the seven species.
authors.affiliation: Department of Environmental Health Science, Kochi Medical School, Nankoku City, Kochi 783-8505, Japan. agatsuma@med.kochi-u.ac.jp
authors.forename: Takeshi
authors.initials: T
authors.lastname: Agatsuma
authors.forename: Moritoshi
authors.initials: M
authors.lastname: Iwagami
authors.forename: Shigehiko
authors.initials: S
authors.lastname: Uni
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Takaoka
authors.forename: A
authors.initials: A
authors.lastname: Katsumi
authors.forename: Eisaku
authors.initials: E
authors.lastname: Kimura
authors.forename: Odile
authors.initials: O
authors.lastname: Bain
mesh_terms: D000818:Animals; D000866:Antelopes / Q000469:parasitology*; D018509:DNA, Helminth / Q000032:analysis; D004272:DNA, Mitochondrial / Q000032:analysis; D003670:Deer / Q000469:parasitology*; D003576:Electron Transport Complex IV / Q000235:genetics; D005368:Filariasis / Q000469:parasitology / Q000662:veterinary*; D005370:Filarioidea / Q000145:classification* / Q000235:genetics* / Q000302:isolation & purification / Q000502:physiology; D006790:Host-Parasite Interactions; D007564:Japan; D008928:Mitochondria / Q000201:enzymology; D008969:Molecular Sequence Data; D010802:Phylogeny; D017422:Sequence Analysis, DNA; D013045:Species Specificity
chemical_list: D018509:DNA, Helminth; D004272:DNA, Mitochondrial; D003576:Electron Transport Complex IV