| phylogenetic relationships of asian and european pig breeds determined by mitochondrial dna d-loop sequence polymorphism. | phylogenetic relationships among asian and european pig breeds were assessed using 1036 bp of mitochondrial dna (mtdna) d-loop sequences. an unweighted pair-group method with arithmetic mean (upgma) tree was constructed on the basis of maximum likelihood distances using sequences determined for three cheju (korea), 11 chinese, one westran (australian feral origin) and two european pigs (berkshire and welsh), and also published sequences for four japanese (including two wild boars), one yucatan m ... | 2002 | 11849133 |