title: Molecular phylogeny and diversification of the genus Odorrana (Amphibia, Anura, Ranidae) inferred from two mitochondrial genes.
abstract: A diversity of hypotheses have been proposed for phylogenetic relationships and taxonomy within the genus Odorrana, and great progress has been made over the past several decades. However, there is still some controversy concerning relationships among Odorrana species. Here, we used many paratypes and topotypes and utilized 1.81 kb of mitochondrial sequence data to generate a phylogeny for approximately 4/5 of Odorrana species, and Odorrana haplotypes form a strongly supported monophyletic group relative to the other genera sampled. The deepest phylogenetic divergences within Odorrana separate 3 lineages whose interrelationships are not recovered with strong support. These lineages include the ancestral lineage of O. chapaensis, the ancestral lineage of a strongly supported clade comprising many western species, and the ancestral lineage of a strongly supported clade comprising all other Odorrana sampled. Within the latter clade, the first phylogenetic split separates O. ishikawae from a well-supported clade comprising its other species. These divergences likely occurred in the middle Miocene, approximately 12-15 million years ago. Separation of the ancestral lineage of Odorrana from its closest relative, Babina in our study, likely occurred in the early Miocene or possibly late Oligocene. Rates of lineage accumulation remained high from the middle Miocene through the Pleistocene.
authors.affiliation: College of Life Sciences, Henan Normal University, Xinxiang 453007, China. Electronic address: xhchen-xx@sohu.com.
authors.forename: Xiaohong
authors.initials: X
authors.lastname: Chen
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Chen
authors.forename: Jianping
authors.initials: J
authors.lastname: Jiang
authors.forename: Liang
authors.initials: L
authors.lastname: Qiao
authors.forename: Youqiang
authors.initials: Y
authors.lastname: Lu
authors.forename: Kaiya
authors.initials: K
authors.lastname: Zhou
authors.forename: Guangmei
authors.initials: G
authors.lastname: Zheng
authors.forename: Xiaofei
authors.initials: X
authors.lastname: Zhai
authors.forename: Jianxin
authors.initials: J
authors.lastname: Liu
mesh_terms: D000818:Animals; D001499:Bayes Theorem; D004272:DNA, Mitochondrial / Q000235:genetics; D019143:Evolution, Molecular; D050259:Genes, Mitochondrial; D008957:Models, Genetic; D010802:Phylogeny; D012335:RNA, Ribosomal / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D011898:Ranidae / Q000145:classification* / Q000235:genetics; D017422:Sequence Analysis, DNA
chemical_list: D004272:DNA, Mitochondrial; D012335:RNA, Ribosomal; D012336:RNA, Ribosomal, 16S; C075526:RNA, ribosomal, 12S
keywords: Divergence date; Diversification; Odorrana; Phylogeny; Ranidae