title: Phylogeny based on two mtDNA genes (Co-1, Cyt-B) among Sculpins (Scorpaeniformes, Cottidae) and some other scorpionfish in the Russian Far East.
abstract: The average scores of p-distances at Co-1 and Cyt-b genes revealed a pattern of increased nucleotide diversity for four categories: (1) intraspecies, (2) intragenus, (3) intrafamily, and (4) intraorder. Scores for Co-1 genes were following: (1) 0.24 ± 0.19% (n = 66), (2) 1.54 ± 0.27% (n = 33), (3) 11.57 ± 0.24% (n = 42), and (4) 12.91 ± 0.16% (n = 102); while for Cyt-b genes, those values were (1) 1.92 ± 0.55% (n = 24), (2) 8.19 ± 0.09% (n = 812), (3) 15.42 ± 0.07% (n = 1573), and (4) 23.13 ± 0.19% (n = 211). A concordant increase in the distance score, as the rank of taxa grows, with the minimum at intraspecies level substantiates the concept that speciation in the order Scorpaeniformes mostly follows a geographic mode. Phylogenetic trees for 40 sequences of scorpionfish and four other fishes belonging to Actinopterigii were developed using Co-1 gene and four different analytical approaches: Bayesian, ML, MP, and NJ. Resolution of the Co-1 trees for the three genera that included different species branches was quite distinct in all approaches. Intrafamily branching for Cyt-b in Cottidae was also supported by all four kinds of trees but only for less numerous genera in the research.
authors.affiliation: a A.V. Zhirmunsky Institute of Marine Biology , Vladivostok , Russian Federation .|b Far Eastern Federal University, Vladivostok, Russian Federation , and.
authors.forename: Yuri Phedorovich
authors.initials: YP
authors.lastname: Kartavtsev
authors.affiliation: c Institute of Biology and Soil Science , Vladivostok , Russian Federation.
authors.forename: Konstantin V
authors.initials: KV
authors.lastname: Rozhkovan
authors.affiliation: a A.V. Zhirmunsky Institute of Marine Biology , Vladivostok , Russian Federation .
authors.forename: Natalya A
authors.initials: NA
authors.lastname: Masalkova
mesh_terms: D000818:Animals; D001499:Bayes Theorem; D045303:Cytochromes b / Q000145:classification / Q000235:genetics; D004247:DNA / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism; D004272:DNA, Mitochondrial / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D003576:Electron Transport Complex IV / Q000145:classification / Q000235:genetics; D005202:Asia, Eastern; D014644:Genetic Variation; D016013:Likelihood Functions; D009132:Muscles / Q000378:metabolism; D010473:Perciformes / Q000145:classification / Q000235:genetics*; D010802:Phylogeny; D012426:Russia
chemical_list: D004272:DNA, Mitochondrial; D004247:DNA; D045303:Cytochromes b; D003576:Electron Transport Complex IV
keywords: Co-1; Cyt-b; molecular phylogeny; nucleotide composition; p-distance; scorpionfish; sequence divergence; taxonomy