文献类型: 外文期刊
第一作者: Chu, Mingxing
作者: Chu, Mingxing;Di, Ran;Cao, Guiling;Feng, Tao;Fang, Li;Zhuang, Haibin;Li, Xuewei;Zhang, Yingjie;Jin, Mei
作者机构:
关键词: primer;amino acid;litter size;genotype frequency
期刊名称:ANIMAL SCIENCE JOURNAL ( 影响因子:1.749; 五年影响因子:1.909 )
ISSN:
年卷期:
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收录情况: SCI
摘要: The inhibin beta(B) (INHBB) gene was studied as a candidate gene for the prolificacy of Small Tail Han and Hu sheep. According to the sequence of exon 1 and 2 of bovine INHBB gene, six pairs of primers were designed to detect single nucleotide polymorphisms of exon 1 and 2 of INHBB gene in both high (Small Tail Han and Hu sheep) and low prolificacy breeds (Dorset, Texel and German Mutton Merino sheep) by polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP). Three pairs of primers (primers 1-1, 1-2 and 1-3) were used to amplify the exon 1, and others (primers 2-1, 2-2 and 2-3) to the exon 2. Only the products amplified by primer 2-3 displayed polymorphism. For primer 2-3, three genotypes (AA, AB and BB) were detected in Hu sheep and only AA genotype in other breeds. In Hu sheep, frequency of AA, AB and BB genotypes was 0.636, 0.046 and 0.318, respectively. Sequencing revealed 276A > G mutation (based on the amplification region of primer 2-3) which did not cause any amino acid change because it lay in the 3' untranslated region. The ewes with genotype BB had 0.58 (P < 0.01) lambs more than those with AA in Hu sheep.
分类号: S8
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