畜牧兽医学报 ›› 2009, Vol. 40 ›› Issue (3): 338-342.

• 遗传繁育 • 上一篇    下一篇

LHR基因在济宁青山羊发情周期不同阶段子宫中表达差异的研究

申颖1,2,王慧1,王树迎1*,王立芹1,侯衍猛1,黄丽波1   

  1. 1.山东农业大学动物医学院, 泰安 271018;2.山东畜牧兽医职业学院,潍坊 261061
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-03-24 发布日期:2009-03-24
  • 通讯作者: 王树迎

Different Expression of LHR mRNA in the Uterus of Four Estrous Cycle Phases in Jining Gray Goat

SHEN Ying1,2,WANG Hui1,WANG Shu-ying1*,WANG Li-qin1
HOU Yan-meng1,HUANG Li-bo1
  

  1. 1.College of Veterinary Medicine,Shandong Agricultural University,Taian 271018, China;2.Veterinary Department, Shandong Vocational Animal Science and Veterinary College, Weifang 261061,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-03-24 Published:2009-03-24

摘要: 从济宁青山羊子宫组织中提取总RNA,用RT-PCR方法扩增黄体生成素受体(LHR)基因,获得一条286 bp的片段,以pGEM-TEasy vector为载体,转染大肠杆菌E.coli DH5α,筛选阳性克隆并测序。采用优化的半定量RT-PCR技术,以山羊GAPDH为分子内参,比较研究了发情周期不同阶段的济宁青山羊子宫组织中LHR基因的表达差异。结果表明:得到的片段为山羊LHR基因的部分序列,与GenBank中登录的山羊LHR基因(AF379199)41-326 bp序列同源性高达100%。LHR mRNA在整个发情周期的子宫中都有表达。其中,发情期的表达水平最低(0.454±0.06),且与其它时期比较均差异显著(P<0.05),随之在间情期升至最高值(0.705±0.09),尔后在发情前期降至(0.553±0.07)。这一研究结果为山羊的生殖内分泌调控机制研究提供了分子水平的数据。

关键词: LHR mRNA, 半定量RT-PCR, 发情周期, 济宁青山羊

Abstract: Total RNA extracted from the uterus of Jining gray goat was used for RT-PCR amplification of goat luteinizing hormone receptor (LHR) gene. A cDNA fragment of 289 bp in size was obtained and cloned into pGEM-T vector. Positive clones were identified and sequenced. Using GAPDH as an inner control, an optimal semi-quantitative RT-PCR method was established to analyze LHR mRNA expression levels in the goat uterus of four estrous cycle phases. Sequencing analysis indicated that this fragment was a partial sequence of LHR cDNA and identical to the reported LHR mRNA (AF379199). The LHR mRNA expression was different in the uterus of Jining gray goat during the four estrous cycle phases, being lowest in the estrus (0.454±0.06), highest in the diestrus (0.705±0.09), intermediate in the proestrus (0.553±0.07).The expression in the estrus was significantly lower than that in other oestrous cycle phases (P<0.05).The results provides molecular data for further elucidating the mechanisms of reproductive endocrine secretion in goats.

Key words: LHR mRNA, semiquantitative RT-PCR, estrous cycle, Jining gray goat