Xiaoping WANG,Ruifeng WU,Ke JIANG,et al.Group Living on Trees Does Not Elevate Inbreeding Risk in Shedao Pit Vipers Gloydius shedaoensis[J].Asian Herpetological Research(AHR),2021,12(2):242-249.[doi:10.16373/j.cnki.ahr.200108]
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Group Living on Trees Does Not Elevate Inbreeding Risk in Shedao Pit Vipers Gloydius shedaoensis
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

2021 VoI.12 No.2
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Group Living on Trees Does Not Elevate Inbreeding Risk in Shedao Pit Vipers Gloydius shedaoensis
Xiaoping WANG1# Ruifeng WU2# Ke JIANG2 Yayong WU3 Guannan WEN2 Yin QI24*
1 Nature Conservation of Snake Island and Laotieshan Mountain, Dalian 116041, Liaoning, China
2 Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China
3 College of Life Sciences and Food Engineering, Yibin University, Yibin 644007, Sichuan, China
4 Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong 637009, Sichuan, China
group living inbreeding risk pairwise relatedness snakes Gloydius shedaoensis
Group living has increasingly been emphasized due to its potential consequence on inbreeding, nevertheless, the relationship between group living and inbreeding risk is largely unknown. The endangered snake species, Shedao pit viper (Gloydius shedaoensis) inhabiting mostly on Shedao Island (meaning “snake island” in Chinese), provides an excellent model system for research on group living and inbreeding risk. Small island area, high population density and extreme seasonal foraging opportunity many individuals to live on the same tree, which likely increase the potential mating among relatives. To confirm this probability, we used genotypes from 13 microsatellites DNA markers and examined the genetic relationships between pair of individuals lived on the same tree. The results showed that snakes on the same tree did not show closer relationships compared with individuals from different trees. The group constructions based on scenarios of parental-offspring, full-sibling, half-sibling as well as cousin were not consistent with tree-based group living. In addition, we did not find significant correlation between pair of individual genetic distance and geographic distance going beyond trees, suggesting group living on trees might not elevate inbreeding risk.


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Last Update: 2021-06-25