Kumar S, Nagarajan M, Sandhu J S, Kumar N, Behl V, Nishanth G
Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad 500007, India.
Anim Genet. 2007 Jun;38(3):227-32. doi: 10.1111/j.1365-2052.2007.01602.x. Epub 2007 Apr 24.
Water buffalo (Bubalus bubalis) is broadly classified into river and swamp categories, but it remains disputed whether these two types were independently domesticated, or if they are the result of a single domestication event. In this study, we sequenced the mitochondrial D-loop region and cytochrome b gene of 217 and 80 buffalo respectively from eight breeds/locations in northern, north-western, central and southern India and compared our results with published Mediterranean and swamp buffalo sequences. Using these data, river and swamp buffalo were distinguished into two distinct clades. Based upon the existing knowledge of cytogenetic, ecological and phenotypic parameters, molecular data and present-day distribution of the river and swamp buffalo, we suggest that these two types were domesticated independently, and that classification of the river and swamp buffalo as two related subspecies is more appropriate.
水牛（Bubalus bubalis）大致分为河流型和沼泽型两类，但这两种类型是独立驯化的，还是单一驯化事件的结果，仍存在争议。在本研究中，我们分别对来自印度北部、西北部、中部和南部八个品种/地点的217头和80头水牛的线粒体D-loop区域和细胞色素b基因进行了测序，并将我们的结果与已发表的地中海和沼泽型水牛序列进行了比较。利用这些数据，河流型和沼泽型水牛被分为两个不同的进化枝。基于现有的细胞遗传学、生态学和表型参数、分子数据以及河流型和沼泽型水牛的当今分布情况，我们认为这两种类型是独立驯化的，将河流型和沼泽型水牛分类为两个相关亚种更为合适。
