Vijh R K, Tantia M S, Mishra B, Bharani Kumar S T
National Bureau of Animal Genetic Resources (NBAGR), Post Box 129, Karnal 132 001, India.
J Anim Sci. 2008 Jul;86(7):1495-502. doi: 10.2527/jas.2007-0321. Epub 2008 Mar 14.
The water buffalo (Bubalus bubalis) is an important dairy animal on the Indian subcontinent and in Southeast Asian countries. The diversity and differentiation among 12 populations or breeds of buffalo were studied. Data were generated and analyzed from 527 animals belonging to 10 recognized breeds and 2 additional populations of Indian buffalo by using 22 microsatellite loci. Relationships among buffalo breeds and populations were estimated based on genetic distances. The Bayesian analysis grouped 12 populations into 8 distinctive clusters. Geographically close breeds clustered together, except for the Jaffarabadi and Murrah, which were not in geographic contiguity. The Mantel test revealed nonsignificant correlations between genetic and geographic distances. This supports the hypothesis that buffaloes have been domesticated at different places for specific purposes. The phylogenetic relationship based on microsatellite loci supported the breed classification based on body size. The Toda breed, which is considered to be endangered, had genotypes similar to those of the surrounding buffalo populations.
水牛（Bubalus bubalis）是印度次大陆和东南亚国家重要的奶牛品种。对12个水牛种群或品种的多样性和分化情况进行了研究。通过使用22个微卫星位点，对属于10个公认品种和另外2个印度水牛种群的527头动物的数据进行了生成和分析。基于遗传距离估计了水牛品种和种群之间的关系。贝叶斯分析将12个种群分为8个不同的聚类。地理上相近的品种聚集在一起，但贾法拉巴迪和摩拉水牛除外，它们在地理上并不相邻。曼特尔检验显示遗传距离和地理距离之间无显著相关性。这支持了水牛在不同地方为特定目的而被驯化的假设。基于微卫星位点的系统发育关系支持了基于体型的品种分类。被认为处于濒危状态的托达品种，其基因型与周围水牛种群相似。
