›› 2009, Vol. 36 ›› Issue (8): 94-98.

• 遗传繁育 • 上一篇    下一篇

杂种奶牛POU1Fl、GHRGHRH-RCSN1S2基因部分序列PCR-SSCP多态性分析

刘哲,吴建平,马彦男,朱静,张利平,刘晓敏,秦艳丽   

  1. (甘肃农业大学动物科学技术学院, 兰州 730070)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-08-20 发布日期:2009-08-20

Study on PCR-SSCP Polymorphism of POU1Fl,GHR, GHRH-Rand CSN1S2 Gene Part Sequence in Hybrid Dairy Cattle

LIU Zhe, WU Jian-ping, MA Yan-nan, ZHU Jing, ZHANG Li-ping, LIU Xiao-min, QIN Yan-li   

  1. (College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-08-20 Published:2009-08-20

摘要: 利用PCR-SSCP技术,对荷斯坦公牛冻精改良的93头杂种奶牛的脑垂体转录因子-1(POU1Fl)基因第6外显子、生长激素受体(GHR)基因第10外显子、生长激素释放激素受体(GHRH-R)基因第2外显子和酪蛋白(CSN1S2) 基因第18外显子进行了多态性研究。结果表明,在检测的4个基因位点中,只有POU1Fl基因第6外显子存在2种基因型,AB、BB基因型频率及A、B基因频率分别为0.0323、0.9677和0.0162、0.9838,未发现AA型个体。该群体在此位点上处于Hardy-Weinberg平衡状态,基因杂合度和多态信息含量分别为0.0318和0.0313。测序显示,与普通黄牛POU1Fl基因序列Y15995相比,A等位基因在POU1F1基因第6外显子的第209个碱基处发生了G→C的碱基颠换,导致Thr/Arg替代,其多态的成因及效应需进一步研究。

关键词: 奶牛; 基因; PCR-SSCP; 多态性

Abstract: The PCR-SSCP polymorphism of POU1F1 gene exon 6, GHRgene exon10, GHRH-R gene exon 2 and CSN1S2 gene exon 18 were studied in 93 hybrid dairy cattles improved by crossbreeding with Holstein frozen sperm. The results showed that in four examined genes locus, only the POU1Fl gene exon 6 have two genotypes, the genotypic frequencies of AB and BB were 0.0323 and 0.9677 respectively; the allelic frequencies of A and B were 0.0162 and 0.9838, and the individual with genotype AA has not discovered. The population was at Hardy-Weinberg equilibrium at this locus. The gene heterozygosity and polymorphism information content were 0.0318 and 0.0313 respectively. The sequencing result showed that comparing with Y15995 of POU1Fl gene sequence in general yellow cattle, the A allele had happened base transversion of G-C at the 209th bp of POU1Fl gene exon 6 which caused a amino acid substitute of Thr to Arg, and the reasons and effects of this polymorphism need to study futurely.

Key words: dairy cattle; gene; PCR-SSCP; polymorphism