title: Characterization of cytochrome b diversity in Chinese domestic horses.
abstract: Previous mitochondrial DNA (mtDNA) D-loop and microsatellite studies have shown that Chinese horses have multiple maternal origins and high genetic diversity. To better characterize maternal genetic origins and diversity of Chinese domestic horses, we conducted a comprehensive analysis of 407 complete 1140 bp sequences of the horse mitochondrially encoded cytochrome b (CYTB) gene, including 323 horses from 13 Chinese indigenous breeds and 84 reference sequences from GenBank. A total of 114 haplotypes were identified, of which 73 appeared among the 13 Chinese horse breeds. The high mitochondrially encoded cytochrome b haplotypic diversity suggests multiple maternal origins in Chinese horses.
authors.affiliation: Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A & F University, Yangling, Shaanxi 712100, China.
authors.forename: X P
authors.initials: XP
authors.lastname: Yue
authors.forename: F
authors.initials: F
authors.lastname: Qin
authors.forename: M G
authors.initials: MG
authors.lastname: Campana
authors.forename: D H
authors.initials: DH
authors.lastname: Liu
authors.forename: C C
authors.initials: CC
authors.lastname: Mao
authors.forename: X B
authors.initials: XB
authors.lastname: Wang
authors.forename: X Y
authors.initials: XY
authors.lastname: Lan
authors.forename: H
authors.initials: H
authors.lastname: Chen
authors.forename: C Z
authors.initials: CZ
authors.lastname: Lei
mesh_terms: D000818:Animals; D001483:Base Sequence; D002681:China; D045303:Cytochromes b / Q000235:genetics*; D004272:DNA, Mitochondrial / Q000235:genetics*; D005260:Female; D006239:Haplotypes; D006736:Horses / Q000235:genetics*; D008969:Molecular Sequence Data; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic; D016415:Sequence Alignment
chemical_list: D004272:DNA, Mitochondrial; D045303:Cytochromes b