| genetic variation of mitochondrial d-loop region and evolution analysis in some chinese cattle breeds. | the complete mitochondrial d-loop region from 123 individuals in 12 chinese cattle breeds and two individuals in germany yellow cattle breed was sequenced and analyzed. the results were shown as follows: 93 variations and 57 haplotypes were detected, and the average number of nucleotide difference was 22.708, nucleotide diversity (d) was 0.0251 +/- 0.00479, and haplotype diversity (hd) was 0.888 +/- 0.026, indicating very high genetic diversity in chinese cattle breeds. in the neighbor-joining t ... | 2007 | 17601610 |