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- 저자 : Caixia Yuan (검색결과 3 건)
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Caixia Yuan,Maxim Nabozhenko,Guodong Ren 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.4
The genus Erulipus Fairmaire, 1903 (previously in the subfamily Tenebrioninae, tribe Helopini), after the study of the type species (Erulipus fruhstorferi Fairmaire, 1903), is transferred to the genus Ainu Lewis, 1894 (subfamily Stenochiinae, the tribe Cnodalonini) as a subgenus. Consequently, two new combinations are established: Ainu (Erulipus) fruhstorferi (Fairmaire, 1903), comb. nov. and Ainu (s. str.) multicolor (Pic, 1927), comb. nov. The syntypes of Erulipus fruhstorferi and Erulipus multicolor Pic, 1927 are studied and the new synonym is proposed: Erulipus fruhstorferi = Ainu grandis Ren and Yuan, 2005, syn. nov. Two new species are described from China: Ainu linwenxini Nabozhenko & Ren, sp. nov. (Taiwan) and Ainu basifemoratum Nabozhenko & Ren, sp. nov. (Yunnan). Both the new species are closely related to A. sichuanum Ren and Yuan, 2015.
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Ge Qianyun,Gao Caixia,Cai Yuan,Jiao Ting,Quan Jinqiang,Guo Yongbo,Zheng Wangshan,Zhao Shengguo 아세아·태평양축산학회 2020 Animal Bioscience Vol.33 No.12
Objective: Tibetan pigs, an excellent species unique to China, face serious threats, which in turn affects the development and utilization of the outstanding advantages of plateau hypoxia adaptability and reduces their genetic diversity. Therefore, a discussion of measures to conserve this genetic resource is necessary. The method, based on genetic diversity, genetic divergence and total genetic contribution rate of population, reflects the priority conservation order and varies depending on the three different purposes of conservation. Methods: We analyzed mitochondrial DNA control region (D-loop) variation in 1,201 individuals from nine Tibetan pig populations across five provinces and downloaded 564 mtDNA D-loop sequences from three indigenous pig breeds in Qinghai, Sichuan, and Yunnan Provinces distributed near the Tibetan pigs. Results: We analyzed three different aspects: Changdu Tibetan pigs have the highest genetic diversity, and from the perspective of genetic diversity, the priority conservation is Changdu Tibetan pigs. Hezuo Tibetan pigs have the highest genetic contribution, so the priority conservation is Hezuo Tibetan pigs in the genetic contribution aspect. Rkaze Tibetan pigs were severely affected by indigenous pig breeds, so if considering from the perspective of introgression, the priority conservation is Rkaze Tibetan pigs. Conclusion: This study evaluated genetic diversity and comprehensively assessed conservation priority from three different aspects in nine Tibetan pig populations.
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Ge, Qianyun,Gao, Caixia,Cai, Yuan,Jiao, Ting,Quan, Jinqiang,Guo, Yongbo,Zheng, Wangshan,Zhao, Shengguo Asian Australasian Association of Animal Productio 2020 Animal Bioscience Vol.33 No.4
Objective: Evidence from previous reports indicates that pig domestication in East Asia mainly occurred in the Mekong region and the middle and downstream regions of the Yangtze River. Further research identified two new origin centers for domestic pigs in the Tibetan Plateau and the islands of Southeast Asia. However, due to the small sample size of Tibetan pigs, details of the origin and spread of Tibetan pigs has not yet been established. Methods: We analyzed mitochondrial DNA control region (D-loop) variation in 1,201 individuals from nine Tibetan pig populations across five provinces. Comprehensive Tibetan pig samples were taken to perform the most detailed analysis of Tibetan pigs to date. Results: The result indicate that Rkaze pigs had the lowest level of diversity, while Changdu pigs had the highest diversity. Interestingly, these two populations were both in the Tibetan Plateau area. If we calculate diversity in terms of each province, the Tibetan Plateau area had the lowest diversity, while the Chinese province of Gansu had the highest diversity. Diversity gradient analysis of major haplotypes suggested three domestication centers of Tibetan pigs in the Tibetan Plateau and the Chinese provinces of Gansu and Yunnan. Conclusion: We found two new domestication centers for Tibetan pigs. One is in the Chinese province of Gansu, which lies in the upstream region of the Yellow River, and the other is in the Chinese province of Yunnan.
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