Abstract
Although Tibetan antelope ( Pantholops hodgsonii) is a distinctive wild species inhabiting the Tibet-Qinghai Plateau, its taxonomic classification within the Bovidae is still unclear and little molecular information has been reported to date. In this study of Tibetan antelope, the complete control regions of mtDNA were sequenced and compared to those of Tibetan sheep ( Ovis aries) and goat ( Capra hircus). The length of the control region in Tibetan antelope, sheep and goat is 1067, 1181/1106 and 1121 bp, respectively. A 75-bp repeat sequence was found near the 5′ end of the control region of Tibetan antelope and sheep, the repeat numbers of which were two in Tibetan antelope and three or four in sheep. Three major domain regions, including HVI, HVII and central domain, in Tibetan antelope, sheep and goat were outlined, as well as other less conserved blocks, such as CSB-1, CSB-2, ETAS-1 and ETAS-2. NJ cluster analysis of the three species revealed that Tibetan antelope was more closely related to Tibetan sheep than Tibetan goat. These results were further confirmed by phylogenetic analysis using the partial control region sequences of these and 13 other antelope species. Tibetan antelope is better assigned to the Caprinae rather than the Antilopinae subfamily of the Bovidae.
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