title: Phylogenetic relationships of Northeast Asian cattle to other cattle populations determined using mitochondrial DNA D-loop sequence polymorphism.
abstract: Phylogenetic relationships of Northeast Asian cattle to various other cattle breeds including Bos taurus, Bos indicus, and Bison bison were assessed using mtDNA D-loop sequences. A neighbor-joining tree was constructed using sequences determined for 4 Cheju Black, 4 Cheju Yellow, 4 Korean Yellow cattle (Bos taurus), and 2 American Brahman cattle (Bos indicus), and also published sequences for 31 Japanese Black cattle, 45 European breed cattle, 6 African zebus, 2 African taurines, and 6 Indian zebus. Five American bisons (Bison bison) were used as an outgroup. The neighbor-joining tree showed that American bisons and Indian zebus are clearly separate from other cattle breeds, respectively, and African cattle clustered together, although with a low bootstrap probability (< 50%). Results indicate that cattle in Northeast Asia, Europe, and Africa are closely related to each other-suggesting their recent divergence, but are separate from Indian zebus.
authors.affiliation: Department of Animal Biotechnology, Cheju National University, Cheju 690-756, Korea. kikim@cheju.ac.kr
authors.forename: Kyu-Il
authors.initials: KI
authors.lastname: Kim
authors.forename: Jun-Heon
authors.initials: JH
authors.lastname: Lee
authors.forename: Sung-Soo
authors.initials: SS
authors.lastname: Lee
authors.forename: Young-Hoon
authors.initials: YH
authors.lastname: Yang
mesh_terms: D000818:Animals; D001208:Asia; D002417:Cattle / Q000235:genetics*; D004272:DNA, Mitochondrial / Q000737:chemistry / Q000235:genetics*; D014644:Genetic Variation; D005828:Genetics, Population; D008969:Molecular Sequence Data; D009690:Nucleic Acid Conformation; D010802:Phylogeny; D011110:Polymorphism, Genetic
chemical_list: D004272:DNA, Mitochondrial