【作者】 赵倩君； 马月辉； 关伟军； 陈红艳； 央金； 狄冉； 苏蕊；

【Author】 ZHAO Qian-jun ,MA Yue-hui ,GUAN Wei-jun, CHEN Hong-yan, YANG Jin, DI Ran, SU Rui (Institute of Animal Science CAAS, Beijing, 100094; Institute of animal husbandry and veterinary TAAAS, Lhasa, 580009;Inner Mongolia agriculture university, Huhhot, 010018)

【机构】 中国农业科学院北京畜牧兽医研究所；

【摘要】 本研究选用15个微卫星标记,对江孜绵羊、安多绵羊、岗巴绵羊、澎波半细毛羊、迪庆绵羊、腾冲绵羊、宁蒗绵羊和乌骨羊8个绵羊群体的遗传多样性及群体遗传结构进行分析。结果表明:藏系绵羊的群体杂合度都较高,最高的是岗巴绵羊(0．6674),最低的是乌骨羊 (0．6202)。云南绵羊群体与西藏绵羊群体之间的基因交流相对较低,其中腾冲绵羊与林周绵羊的基因流最小(2．506);云南绵羊群体内的基因交流较活跃,而西藏绵羊群体内的基因交流则相对贫乏。以大尾寒羊作为外群,应用UPGMA法进行系统发生关系分析,结果显示云南和西藏的绵羊群体分别聚为一类,其系统发生关系与其品种形成历史及地理分布一致。更多还原

【Abstract】 Genetic diversity of 8 sheep population including Jiangzi, Anduo, Gangba, Pengbo semi-fine, Diqing, Tengchong, Ninglang and wugu were analysised by using 15 microsatellite markers.The result showed that the heterozygosity of Tibetan sheep population was high.Among 8 sheep population,the hightes heterozygosity was in Gangba sheep(0.6674),whereas the lowest was in Wugu sheep(0.6202).The gene flow between Yunnan sheep and Tibetan sheep was low.Gene flow between Tengchong and Pengbo semi-fine was lowest(2.506); The gene flow among Yunnan sheep was high, and which of Tibetan sheep was low. The UPGMA dendrogram showed that sheep of Yunnan and Tibet were clustered t respectively. The phylogenetic relationship is in accord with breed history and distribution.更多还原