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Assessment of cattle genetic introgression into domestic yak populations using mitochondrial and microsatellite DNA markers

文献类型：期刊论文

作者Qi XB[*]1,2; Jianlin H[*]1,3; Wang G4; Rege JEO1,2; Hanotte O1,5
刊名ANIMAL GENETICS
出版日期2010
卷号41期号:3页码:242-252
关键词admixture analysis cattle introgression Qinghai-Tibetan Plateau yak
ISSN号0268-9146
通讯作者qixuebin@mail.kiz.ac.cn ; h.jianlin@cgiar.org
合作状况其它
英文摘要Hybridization between yak Poephagus grunniens and taurine Bos taurus or indicine B. indicus cattle has been widely practiced throughout the yak geographical range, and gene flow is expected to have occurred between these species. To assess the impact of cattle admixture on domestic yak, we examined 1076 domestic yak from 29 populations collected in China, Bhutan, Nepal, India, Pakistan, Kyrgyzstan, Mongolia and Russia using mitochondrial DNA and 17 autosomal microsatellite loci. A cattle diagnostic marker-based analysis reveals cattle-specific mtDNA and/or autosomal microsatellite allele introgression in 127 yak individuals from 22 populations. The mean level of cattle admixture across the populations, calculated using allelic information at 17 autosomal microsatellite loci, remains relatively low (mY(cattle) = 2.66 +/- 0.53% and Q(cattle) = 0.69 +/- 2.58%), although it varies a lot across populations as well as among individuals within population. Although the level of cattle admixture shows a clear geographical structure, with higher levels of admixture in the Qinghai-Tibetan Plateau and Mongolian and Russian regions, and lower levels in the Himalayan and Pamir Plateau region, our results indicate that the level of cattle admixture is not significantly correlated with the altitude across geographical regions as well as within geographical region. Although yak-cattle hybridization is primarily driven to produce F(1) hybrids, our results show that the subsequent gene flow between yak and cattle took place and has affected contemporary genetic make-up of domestic yak. To protect yak genetic integrity, hybridization between yak and cattle should be tightly controlled.
收录类别SCI
资助信息This project is supported by the Chinese Academy of Science (KSCX2-YWN-023, GJHZ0701-6), the National Natural Science Foundation of China (30725008), and the Chinese 973 program (2007CB815701, 2007CB815703, 2007CB815705). This project is also funded by the Shenzhen Municipal Government and the Yantian District local government of Shenzhen, the Danish Platform for Integrative Biology, and the Ole Romer grant from the Danish Natural Science Research Council (272-07-0196). Laurie Goodman edited the manuscript.
原文出处2010413242.pdf
语种英语
公开日期2010-08-24
源URL[http://159.226.149.42:8088/handle/152453/2205]  
专题昆明动物研究所_比较基因组学
昆明动物研究所_遗传资源与进化国家重点实验室
作者单位1.International Livestock Research Institute (ILRI), P.O. Box 30709, Nairobi 00100, Kenya
2.State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Science, Kunming 650223, China
3.CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China
4.Key Laboratory of Arid and Grassland Agro-Ecology, Lanzhou University, Lanzhou 730000, China
5.School of Biology, University of Nottingham, University Park, NG2 2RD Nottingham, UK
推荐引用方式
GB/T 7714		 Qi XB[*],Jianlin H[*],Wang G,et al. Assessment of cattle genetic introgression into domestic yak populations using mitochondrial and microsatellite DNA markers[J]. ANIMAL GENETICS,2010,41(3):242-252.
APA Qi XB[*],Jianlin H[*],Wang G,Rege JEO,&Hanotte O.(2010).Assessment of cattle genetic introgression into domestic yak populations using mitochondrial and microsatellite DNA markers.ANIMAL GENETICS,41(3),242-252.
MLA Qi XB[*],et al."Assessment of cattle genetic introgression into domestic yak populations using mitochondrial and microsatellite DNA markers".ANIMAL GENETICS 41.3(2010):242-252.

入库方式： OAI收割

来源：昆明动物研究所

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