›› 2009, Vol. 36 ›› Issue (10): 47-49.

• 生物技术 • 上一篇    下一篇

籽鹅促卵泡激素β亚基cDNA的分子克隆与序列分析

蔡军,杨焕民,李鹏,郭丽   

  1. (黑龙江八一农垦大学动物科技学院, 大庆 163319)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-10-20 发布日期:2009-10-20
  • 通讯作者: 杨焕民

Cloning and DNA Sequence Analysis of the cDNA for the Precursor of Zi Goose Follicle Stimulating Hormone β Subunit

CAI Jun, YANG Huan-min, LI Peng, GUO Li   

  1. (College of Animal Science and Technology, Heilongjiang August First Land Reclamation University, Daqing 163319, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-10-20 Published:2009-10-20
  • Contact: YANG Huan-min

摘要: 从新屠宰的雌性籽鹅脑垂体中提取总RNA,经RT-PCR法扩增目的片段,获得长为396 bp的籽鹅促卵泡激素β亚基cDNA片段。将扩增的片段与pMD18-T载体连接,并转化至DH5α感受态细胞中。随机挑选阳性重组子进行鉴定、测序,将测序结果与绵羊、水牛、鸡、鸭等多种哺乳动物和禽类该基因序列及相应氨基酸序列进行同源性分析。结果显示,籽鹅促卵泡激素β亚基基因序列和其它动物一样,都有较高的保守性。其中与鸭的同源性最高,核苷酸同源性为97.0%,氨基酸同源性为100%。总体来看,在各种动物中FSHβ亚基基因同源性是很高的。

关键词: 籽鹅; 促卵泡激素; β亚基; 克隆; 序列分析

Abstract: The total RNA obtained from the pituitary of Zi goose was used to amplify the cDNA for the precursor of Zi Goose follicle stimulating hormone β subunit by RT-PCR, and the opening reading frame of 396 bp was acquired. The fragments amplified were ligated with pMD18-T vector and transformed into DH5α competent cells. The positive clones were verified, sequenced, and submitted to GenBank, with accession No. EU563910. The nucleotide sequence and deduced amino acid sequence were compared with homologous sequences from available animals including sheep, buffalo, chicken, duck, tiger, and human. Sequence alignment showed a fairly high degree of homology, duck being ranked the highest. As a whole, various animals exist the homology of follicle stimulating hormone β subunit.

Key words: Zi goose; follicle stimulating hormone; β subunit; cloning; sequence analysis

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