Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Hereditas》 2008-01
Add to Favorite Get Latest Update

Molecular phylogeny of the gayal inferred from the analysis of cytochrome b gene entire sequences

LI Shi-Ping1, 2, CHANG Hong2, MA Guo-Long2, CHEN Hong-Yu2, JI De-Jun2, GENG Rong-Qing2 1. College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China;2. College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China  
The gayal (Bos frontalis) is a very rare, semi-wild and semi-domestic bovine species. There still exist remarkable divergences on the gayal's origin and phylogenetic status. The cytochrome b (Cyt b) gene entire sequences (1 140 bp) of 11 gayals were sequenced and analyzed. Combined with other bovine Cyt b entire sequences cited in GenBank , the phylogenetic trees of genus Bos were reconstructed by neighbor-joining (NJ) and maximum parsimony (MP) methods with Bubalus bubalis as outgroup. Sequence analysis showed that, among 1 140 sites of Cyt b gene entire sequences of 11 gayals, 95 variable sites (8.33 % of all sites) and 6 haplotypes were found, showing abundant genetic diversity in mitochondrial Cyt b gene of the gayals. Both NJ and MP trees demonstrated that the gayals in this study were markedly divided into three embranchments:one embranchment clustering with Bos taurus, another clustering with Bos indicus, and the third clustering with Bos gaurus. The result of phylogenetic analysis suggested that the gayal might be the domesticated form of the gaur (Bos gaurus), and a great proportion of the gayal bloodline was invaded by other bovine species.
【Fund】: 国家自然科学基金项目(编号:30571323)资助~~
【CateGory Index】: Q953;S823
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved