中国畜牧兽医

• 生物技术 • 上一篇    下一篇

水牛水通道蛋白8基因克隆及表达分析

李胜,屈春凤,李润,何金娜,石德顺,李湘萍   

  1. (广西大学,亚热带农业生物资源保护与利用国家重点实验室,广西南宁 530004)
  • 收稿日期:2013-10-11 出版日期:2014-03-20 发布日期:2014-05-15
  • 通讯作者: 石德顺(1962—),男,广西人,博士生导师,研究员,研究方向:动物遗传育种与繁殖。E-mail:ardsshi@gxu.edu.cn 李湘萍(1966—),女,湖南人,博士生导师,研究员,研究方向:动物遗传育种与繁殖。E-mail:xiangpingli@163.com
  • 作者简介:李胜(1988—),男,湖北人,硕士生,研究方向:动物基因工程。
  • 基金资助:

    高等学校博士学科点专项科研基金(20126401110001);广西自然科学基金留学回国重点项目(2012GXNSFCB053002);国家留学回国基金项目(BLH120499)。

Cloning and Expression Analysis of Buffalo Aquaporin 8 Gene

LI Sheng, QU Chun-feng, LI Run, HE Jin-na, SHI De-shun, LI Xiang-ping   

  1. State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources,Guangxi University, Nanning 530004, China)
  • Received:2013-10-11 Online:2014-03-20 Published:2014-05-15

摘要: 本研究对水牛水通道蛋白8(aquaporin 8,AQP8)基因进行了克隆,并构建了真核表达载体,同时对AQP8基因在水牛卵巢组织中的表达进行了分析。结果发现,水牛AQP8基因编码区长度为732 bp,与黄牛及小鼠AQP8基因的氨基酸序列同源性为100%。AQP8蛋白在不同发育阶段水牛卵泡中均有表达,在次级卵泡中的表达显著高于原始卵泡和初级卵泡(P<0.05),且集中表达于卵泡颗粒细胞。构建的pEGFP-N1-AQP8真核蛋白融合表达载体经脂质体法转染HEK293T细胞后,可观察到清晰的EGFP绿色荧光蛋白表达。该试验结果为深入研究AQP8基因在水牛卵泡发育及颗粒细胞凋亡中的功能奠定了基础。

关键词: 水牛; 水通道蛋白8; 卵泡; 颗粒细胞

Abstract: In this study, buffalo AQP8 gene was cloned and its eukaryotic expression vector was constructed, the expression pattern of AQP8 gene in buffalo ovary tissue was also assayed. The results showed that the CDS length of cloned buffalo AQP8 gene was 732 bp, and it shared 100% homology of amino acid sequence with cattle and mouse. AQP8 protein was detected in different developmental stages of buffalo follicles, it had significantly higher expression in the secondary follicles than that of in the primordial and the primary follicles (P<0.05), and it mainly expressed in the granulosa cells of the secondary follicles. Clear EGFP green fluorescent was observed in transfected cell groups with transfection of the pEGFP-N1-AQP8 eukaryotic expression plasmid into HEK293T cells by LipofectamineR LTX and PLUSTM reagent. The above results lay foundation to further investigate the function of AQP8 gene in the buffalo follicle development and granulosa cell apopotosis.

Key words: buffalo; aquaporin 8; follicle; granulosa cells