We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Complete mitochondrial genomes of <italic>Nanorana taihangnica</italic> and <italic>N. yunnanensis</italic> (Anura: Dicroglossidae) with novel gene arrangements and phylogenetic relationship of Dicroglossidae.
- Authors
Zhang, Jia-Yong; Zhang, Le-Ping; Yu, Dan-Na; Storey, Kenneth B.; Zheng, Rong-Quan
- Abstract
Background: Complete mitochondrial (mt) genomes have been used extensively to test hypotheses about microevolution and to study population structure, phylogeography, and phylogenetic relationships of Anura at various taxonomic levels. Large-scale mt genomic reorganizations have been observed among many fork-tongued frogs (family Dicroglossidae). The relationships among Dicroglossidae and validation of the genus <italic>Feirana</italic> are still problematic. Hence, we sequenced the complete mt genomes of <italic>Nanorana taihangnica</italic> (=<italic>F. taihangnica</italic>) and <italic>N. yunnanensis</italic> as well as partial mt genomes of six <italic>Quasipaa</italic> species (dicroglossid taxa), two <italic>Odorrana</italic> and two <italic>Amolops</italic> species (Ranidae), and one <italic>Rhacophorus</italic> species (Rhacophoridae) in order to identify unknown mt gene rearrangements, to investigate the validity of the genus <italic>Feirana</italic>, and to test the phylogenetic relationship of Dicroglossidae<italic>.</italic> Results: In the mt genome of <italic>N. taihangnica</italic> two <italic>trnM</italic> genes, two <italic>trnP</italic> genes and two control regions were found. In addition, the <italic>trnA</italic>, <italic>trnN</italic>, <italic>trnC</italic>, and <italic>trnQ</italic> genes were translocated from their typical positions. In the mt genome of <italic>N. yunnanensis</italic>, three control regions were found and eight genes (<italic>ND6</italic>, <italic>trnP</italic>, <italic>trnQ</italic>, <italic>trnA</italic>, <italic>trnN</italic>, <italic>trnC</italic>, <italic>trnY</italic> and <italic>trnS</italic> genes) in the L-stand were translocated from their typical position and grouped together. We also found intraspecific rearrangement of the mitochondrial genomes in <italic>N. taihangnica</italic> and <italic>Quasipaa boulengeri</italic>. In phylogenetic trees, the genus <italic>Feirana</italic> nested deeply within the clade of genus <italic>Nanorana,</italic> indicating that the genus <italic>Feirana</italic> may be a synonym to <italic>Nanorana.</italic> Ranidae as a sister clade to Dicroglossidae and the clade of (Ranidae + Dicroglossidae) as a sister clade to (Mantellidae + Rhacophoridae) were well supported in BI analysis but low bootstrap in ML analysis. Conclusions: We found that the gene arrangements of <italic>N. taihangnica</italic> and <italic>N. yunnanensis</italic> differed from other published dicroglossid mt genomes. The gene arrangements in <italic>N. taihangnica</italic> and <italic>N. yunnanensis</italic> could be explained by the Tandem Duplication and Random Loss (TDRL) and the Dimer-Mitogenome and Non-Random Loss (DMNR) models, respectively. The invalidation of the genus <italic>Feirana</italic> is supported in this study.
- Subjects
MITOCHONDRIAL DNA; DICROGLOSSIDAE; ANURA; GENOMES; PHYLOGENY
- Publication
BMC Evolutionary Biology, 2018, Vol 18, p1
- ISSN
1471-2148
- Publication type
Article
- DOI
10.1186/s12862-018-1140-2