著者

林 邦忠 小田原 清史 笹崎 晋史 山本 義雄 並河 鷹夫 田中 和明 DORJI Tashi TSHERING Gyen 向井 文雄 万年 英之

出版者

日本動物遺伝育種学会

雑誌

動物遺伝育種研究 = The journal of animal genetics (ISSN:13449265)

巻号頁・発行日

vol.35, no.1, pp.5-10, 2007-06-01

参考文献数

21

被引用文献数

3

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In order to investigate the genetic diversity of the Bhutanese cattle, complete mitochondrial DNA displacement loop sequences from 30 Bhutanese cattle were determined and analyzed these in conjunction with previously published sequences. Sequence comparisons and phylogenetic analyses revealed the presence of <I>B.taurus</I> mitochondrial DNA haplotypes (13.3%), suggesting the genetic introgression of <I>B.taurus</I> genetic materials into Bhutanese population. The remaining <I>B.indicus</I> haplotypes indicated two clades of mitochondrial haplogroups, I1 and I2. The high frequency of I2 haplotype (46.2 %) was observed in Bhutanese cattle. Mean nucleotide divergence values were calculated within populations and Bhutanese population revealed higher value (0.75 %) than those of India (0.41 %) and China (0.19 %) . The results suggested the high genetic variability in Bhutanese cattle consisting of several haplogroups of mitochondrial DNA.