title: [Sequence comparing of mtDNA D-Loop varied region in Chinese Mongolian horse and External Thoroughbred horse].
abstract: Mitochondrial DNA D-Loop varied region 400 bp sequence variations in 4 Chinese Mongolian horses and 4 External Thoroughbred horses were analyzed in this experiment. The results showed that the average nucleotide mutational rate of mtDNA D-Loop varied region in 4 Chinese Mongolian horses was 3.69%, while External Thoroughbred horses were 4.00%. Three types of mutations including transition, transversion and deletion were all found in the investigated mtDNA D-Loop regions, of which transition was the most frequent. Nucleotide mutational loci were abundant, length mutations were found and great differences were all observed among the 8 horses. It showed there existed much polymorphism in the mitochondrial DNA D-Loop varied region of Chinese Mongolian horses and External Thoroughbred horses.
authors.affiliation: College of Animal Science and Veterinary, Inner Mongolia Agricultural University, Huhhot 010018, China. dmanglai1979@yahoo.com.cn
authors.forename: Lai
authors.initials: L
authors.lastname: Mang
authors.forename: Jin-Lian
authors.initials: JL
authors.lastname: Li
authors.forename: You-Fei
authors.initials: YF
authors.lastname: Shi
mesh_terms: D000818:Animals; D001483:Base Sequence; D002681:China; D004252:DNA Mutational Analysis; D004272:DNA, Mitochondrial / Q000235:genetics*; D014644:Genetic Variation; D006736:Horses / Q000235:genetics*; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction
chemical_list: D004272:DNA, Mitochondrial