[1].Validity of Pelodiscus parviformis (Testudines: Trionychidae) Inferred from Molecular and Morphological Analyses[J].Asian Herpetological Research,2011,2(1):21-29.[doi:10.3724/SP.J.1245.2011.00021]
 Ping YANG,Yezhong TANG,Li DING,et al.Validity of Pelodiscus parviformis (Testudines: Trionychidae) Inferred from Molecular and Morphological Analyses[J].Asian Herpetological Research(AHR),2011,2(1):21-29.[doi:10.3724/SP.J.1245.2011.00021]
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Validity of Pelodiscus parviformis (Testudines: Trionychidae) Inferred from Molecular and Morphological Analyses()
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

卷:
2
期数:
2011年1期
页码:
21-29
栏目:
Original Article
出版日期:
2011-03-16

文章信息/Info

Title:
Validity of Pelodiscus parviformis (Testudines: Trionychidae) Inferred from Molecular and Morphological Analyses
文章编号:
AHR-2010-029
Author(s):
Ping YANG Yezhong TANG Li DING Xianguang GUO and Yuezhao WANG*
Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China
Keywords:
mtDNA morphology Pelodiscus parviformis phylogeny taxonomy
DOI:
10.3724/SP.J.1245.2011.00021
Abstract:
The validity of Pelodiscus parviformis within the genus is still not very clear. In this study, molecular and morphological data were combined to evaluate the validity of P. parviformis. The phylogeny of some species in Pelodiscus was reconstructed by maximum parsimony, maximum likelihood and Bayesian inference analyses based on five mitochondria DNA fragments (5308 bp of 12S rRNA, 16S rRNA, ND4, CO1 and Cyt b). The results of ML, MP and Bayesian analyses suggest that P. parviformis might be paraphyletic to P. sinensis, whereas the partitioned Bayesian analyses support the reciprocal monophyly of P. parviformis and P. sinensis. Considering the advantages of heterogenous characteristics of sequence evolution, we choose the result of partitioned Bayesian analyses. Furthermore, the morphological data lend support the distinct species status of P. parviformis and P. sinensis, such as tubercles on carapace skin, color of plastron skin, dark spots on plastron, basisphenoid characteristics (ratio of the smallest width to the largest width; the smallest width of basisphenoid is restrained by two holes on each side) and the shape of entoplastron. Combining the molecular and morphological data, we inferred that P. parviformis is a valid species. In addition, the results of this study suggest a new record of P. axenaria in Guangxi, China.

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更新日期/Last Update: 2016-03-15