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Mitochondrial DNA revealed the validation of Quasipaa robertingeri (Amphibia: Anura: Dicroglossidae) and its population genetic diversity.

ABSTRACT: The spiny frog Quasipaa robertingeri is endemic to a narrow region of southwest China and its taxonomic validation is still controversial. Based on COI gene sequences of 110 individuals from seven populations of Q. robertingeri and its related species, we investigated the phylogenetic position and population genetic structure of the species. Phylogenetic analyses indicated that Q. robertingeri was deeply genetically separated from its closely related species Q. boulengeri, indicating the validation of the species. All samples of Q. robertingeri were clustered into two divergent lineages. Haplotype network, AMOVA, and genetic distance estimations also supported the separations of the two groups. Neutrality tests indicated that one lineage has been likely independently experienced a recent population expansion, leading to a secondary contact area between the two lineages.

SUBMITTER: Wang G

PROVIDER: S-EPMC7928054 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature

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Mitochondrial DNA revealed the validation of Quasipaa robertingeri (Amphibia: Anura: Dicroglossidae) and its population genetic diversity.

Wang Gang G Du Simeng S Wei Gang G Wang Bin B Li Shize S Lu Ningning N

Mitochondrial DNA. Part B, Resources 20210301 2

The spiny frog Quasipaa robertingeri is endemic to a narrow region of southwest China and its taxonomic validation is still controversial. Based on COI gene sequences of 110 individuals from seven populations of Q. robertingeri and its related species, we investigated the phylogenetic position and population genetic structure of the species. Phylogenetic analyses indicated that Q. robertingeri was deeply genetically separated from its closely related species Q. boulengeri ...[more]

PMID: 33763544

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Project description:BackgroundComplete 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 Feirana are still problematic. Hence, we sequenced the complete mt genomes of Nanorana taihangnica (=F. taihangnica) and N. yunnanensis as well as partial mt genomes of six Quasipaa species (dicroglossid taxa), two Odorrana and two Amolops species (Ranidae), and one Rhacophorus species (Rhacophoridae) in order to identify unknown mt gene rearrangements, to investigate the validity of the genus Feirana, and to test the phylogenetic relationship of Dicroglossidae.ResultsIn the mt genome of N. taihangnica two trnM genes, two trnP genes and two control regions were found. In addition, the trnA, trnN, trnC, and trnQ genes were translocated from their typical positions. In the mt genome of N. yunnanensis, three control regions were found and eight genes (ND6, trnP, trnQ, trnA, trnN, trnC, trnY and trnS genes) in the L-stand were translocated from their typical position and grouped together. We also found intraspecific rearrangement of the mitochondrial genomes in N. taihangnica and Quasipaa boulengeri. In phylogenetic trees, the genus Feirana nested deeply within the clade of genus Nanorana, indicating that the genus Feirana may be a synonym to Nanorana. 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.ConclusionsWe found that the gene arrangements of N. taihangnica and N. yunnanensis differed from other published dicroglossid mt genomes. The gene arrangements in N. taihangnica and N. yunnanensis 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 Feirana is supported in this study.

Dataset Information

Mitochondrial DNA revealed the validation of Quasipaa robertingeri (Amphibia: Anura: Dicroglossidae) and its population genetic diversity.

Publications

Mitochondrial DNA revealed the validation of <i>Quasipaa robertingeri</i> (Amphibia: Anura: Dicroglossidae) and its population genetic diversity.

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