Xiaoyu SUN’s scientific contributions

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Publications (3)


Figure 1 Photographs of a new Oligodon multizonatum specimen (specimen number KIZ01623) collected in Luding province. A–C: Whole body; D–F: Head in dorsal, ventral and right lateral views; G: Cloacal region in ventral view. Photo by Mian HOU. 
Figure 2 Photographs of the holotype specimen (CIB9964) of Oligodon multizonatum . A and B: Whole body; C: Ventral views; D: Cloacal region in ventral view and hemipenis. Photo by Juan LEI. 
Figure 3 The left hemipenis of Oligodon multizonatum (specimen number KIZ01623). Drawing by Ke JIANG.. 
Multilocus Phylogeny of Lycodon and the Taxonomic Revision of Oligodon multizonatum
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March 2014

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20 Citations

Asian Herpetological Research

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Xiaoyu SUN

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Classification of the Asian snake genera Lycodon and Oligodon has proven challenging. We conducted a molecular phylogenetic analysis to estimate the phylogenetic relationships in the genus of Lycodon and clarify the taxonomic status of Oligodon multizonatum using mitochondrial (cyt b, ND4) and nuclear (c-mos) genes. Phylogenetic trees estimated using Maximum Likelihood and Bayesian Inference indicated that O. multizonatum is actually a species of Lycodon. Comparing morphological data from O. multizonatum and its closest relatives also supported this conclusion. Our results imply that a thorough review of the evolutionary relationships in the genus of Lycodon is strong suggested.

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Citations (3)


... It would also be appropriate to use other DNA markers with a high mutation rate to determine intraspecies genetic diversity, and reconstruct the potential migration route. In recent years, a growing number of small-sized snakes have been found in the field (Chen et al, 2013;Li et al, 2012;Sun et al, 2013;Wang et al, 2015;Zhang et al, 2011b). One possible reason might be the decline of natural small snake predators. ...

Reference:

New Record of Lycodon liuchengchaoi in Anhui
Sibynophis chinensis Firstly found in Heibei Province, China

... The Lycodon liuchengchaoi is a species of Colubridae family (Zhang et al. 2011). Lycodon liuchengchaoi, once misidentified as L. fasciatus because of their similarity in shape (Lei et al. 2014;Ding et al. 2015). However, in 2011, it was identified as a new species after the careful examination of these specimens that was collected from Sichuang Province (Zhang et al. 2011), the researchers noticed that they can be distinguished from L. fasciatus by several morphological characters, such as the anal plate and the large number and yellow colour of the rings around the body (Vogel et al., 2010;Zhang et al. 2011). ...

Multilocus Phylogeny of Lycodon and the Taxonomic Revision of Oligodon multizonatum

... New sequences of Cyt b (1096 bp) generated for this work were deposited in GenBank and combined with data taken from previously published studies (Table S1; Dubey et al., 2012;Kalki et al., 2020;Pyron et al., 2013;Siler et al., 2013;Nawani et al., 2021;Wang et al., 2021). Following sequences AF471054 (Ptyas mucosa), KC347453 (Ahaetulla nasuta), and KF732930 (Oligodon chinensis) were used as outgroups (Lawson et al., 2005;Lei et al., 2014;Pyron et al., 2013). The sequences were aligned in MEGA 7 (Kumar et al., 2016) using ClustalW (Thompson et al., 2003) with default settings. ...

Multilocus Phylogeny of Lycodon and the Taxonomic Revision of Oligodon multizonatum

Asian Herpetological Research