title: [Detection and analysis of polymorphisms of 59571364 and 59912586 loci on X chromosome in fat-tail and thin-tail sheep flocks].
abstract: In order to analyze the correlation of tail fat deposition and two SNP loci on Ovis arise chromosome X and provide a theoretical basis for using molecular assisted selection technology in further low-fat sheep breeding, the breeds with extreme differences in tail types (Altay, Small Tail Han Sheep, Hu, Chinese Merino and Suffolk) were used to detect the polymorphisms of two SNP loci on X chromosome and the haplotypes with PCR-RFLP method. The results showed that the TT genotype at 59571364 locus and GG genotype at 59912586 locus were preponderant genotypes in thin-tailed Chinese Merino and Suffolk sheep flocks, while the percentage of the two genotypes in fat-tailed (fat-rmup) Altay and Hu flocks is less than 2%. Haplotype analysis showed that CA haplotype is the main haplotype, the percentage of CA is up to 55%, and the percentage of CA and TA haplotypes together was 88.33% in Altay sheep flock. These results suggest that there are great differences in the SNP distribution of the 59571364 and 59912586 loci among different tail-typed sheep flocks, which can be used as molecular markers in high or low fat sheep breeding.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.forename: Min
authors.initials: M
authors.lastname: Shen
authors.forename: Huan
authors.initials: H
authors.lastname: Li
authors.forename: Lei
authors.initials: L
authors.lastname: Gao
authors.forename: Yao-Wei
authors.initials: YW
authors.lastname: Liang
authors.forename: Jing-Quan
authors.initials: JQ
authors.lastname: Yang
authors.forename: Shou-Ren
authors.initials: SR
authors.lastname: Liu
authors.forename: Xin-Hua
authors.initials: XH
authors.lastname: Wang
authors.forename: Shang-Quan
authors.initials: SQ
authors.lastname: Gan
mesh_terms: D000818:Animals; D005787:Gene Frequency / Q000235:genetics; D005838:Genotype; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic / Q000235:genetics*; D012756:Sheep; D014960:X Chromosome / Q000235:genetics*