|
1
|
Yu D, Zhang J, Li P, Zheng R, Shao C. Do cryptic species exist in Hoplobatrachus rugulosus? An examination using four nuclear genes, the cyt b gene and the complete MT genome. PLoS One 2015; 10:e0124825. [PMID: 25875761 PMCID: PMC4395372 DOI: 10.1371/journal.pone.0124825] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 03/18/2015] [Indexed: 11/18/2022] Open
Abstract
he Chinese tiger frog Hoplobatrachus rugulosus is widely distributed in southern China, Malaysia, Myanmar, Thailand, and Vietnam. It is listed in Appendix II of CITES as the only Class II nationally-protected frog in China. The bred tiger frog known as the Thailand tiger frog, is also identified as H. rugulosus. Our analysis of the Cyt b gene showed high genetic divergence (13.8%) between wild and bred samples of tiger frog. Unexpected genetic divergence of the complete mt genome (14.0%) was also observed between wild and bred samples of tiger frog. Yet, the nuclear genes (NCX1, Rag1, Rhod, Tyr) showed little divergence between them. Despite this and their very similar morphology, the features of the mitochondrial genome including genetic divergence of other genes, different three-dimensional structures of ND5 proteins, and gene rearrangements indicate that H. rugulosus may be a cryptic species complex. Using Bayesian inference, maximum likelihood, and maximum parsimony analyses, Hoplobatrachus was resolved as a sister clade to Euphlyctis, and H. rugulosus (BT) as a sister clade to H. rugulosus (WT). We suggest that we should prevent Thailand tiger frogs (bred type) from escaping into wild environments lest they produce hybrids with Chinese tiger frogs (wild type).
Collapse
Affiliation(s)
- Danna Yu
- Institute of Ecology, Zhejiang Normal University, Jinhua, 321004, Zhejiang Province, China
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, Jiangsu Province, China
| | - Jiayong Zhang
- Institute of Ecology, Zhejiang Normal University, Jinhua, 321004, Zhejiang Province, China
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua, 321004, Zhejiang Province, China
| | - Peng Li
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, Jiangsu Province, China
| | - Rongquan Zheng
- Institute of Ecology, Zhejiang Normal University, Jinhua, 321004, Zhejiang Province, China
- Institute of Special Aquaculture Source, Zhejiang Normal University, Jinhua, 321004, Zhejiang Province, China
| | - Chen Shao
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua, 321004, Zhejiang Province, China
| |
Collapse
|
|
2
|
Complete nucleotide sequence and gene organization of the mitochondrial genome of Paa spinosa (Anura: Ranoidae). Gene 2009; 447:86-96. [PMID: 19631263 DOI: 10.1016/j.gene.2009.07.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2008] [Revised: 03/28/2009] [Accepted: 07/14/2009] [Indexed: 11/22/2022]
Abstract
The mt genome of Paa spinosa (Anura: Ranoidae) is a circular molecule of 18,012 bp in length, containing 38 genes (including an extra copy of tRNA-Met gene). This mt genome is characterized by three distinctive features: a cluster of rearranged tRNA genes (LTPF tRNA gene cluster), a tandem duplication of tRNA-Met gene (Met1 and Met2), and distinct repeat regions at both 5' and 3'-sides in the control region. Comparing the locations and the sequences of all tRNA-Met genes among Ranoidae, and constructing NJ tree of the nucleotide of those tRNA-Met genes, we suggested a tandem duplication of tRNA-Met gene can be regarded as a synapomorphy of Dicroglossinae. To further investigate the phylogenetic relationships of anurans, phylogenetic analyses (BI, ML and MP) based on the nucleotide dataset and the corresponding amino acid dataset of 11 protein-coding genes (except ND5 and ATP8) arrived at the similar topology.
Collapse
|
|
3
|
Ren Z, Zhu B, Ma E, Wen J, Tu T, Cao Y, Hasegawa M, Zhong Y. Complete nucleotide sequence and gene arrangement of the mitochondrial genome of the crab-eating frog Fejervarya cancrivora and evolutionary implications. Gene 2009; 441:148-55. [DOI: 10.1016/j.gene.2008.09.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2008] [Revised: 09/08/2008] [Accepted: 09/10/2008] [Indexed: 10/21/2022]
|
|
4
|
Stewart MM. AMPHIBIANS OF CENTRAL AND SOUTHERN AFRICA. COPEIA 2002. [DOI: 10.1643/0045-8511(2002)002[1157:]2.0.co;2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|