畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (2): 245-250.doi: 10.11843/j.issn.0366-6964.2015.02.010

• 遗传繁育 • 上一篇    下一篇

不同日龄犊牛睾丸中细胞周期调控基因CyclinB1和p34cdc2表达的差异

姚晓磊1,宋瑞高1,吕丽华1,李鹏飞2,刘强1, 黄洋1,陈建伟1,姜晓龙1,曹霞1,赵妙妙1,张贵花1,王永新1,石磊1*   

  1. (1.山西农业大学动物科技学院,太谷 030801; 2.山西农业大学生命科学学院,太谷 030801)
  • 收稿日期:2014-10-10 出版日期:2015-02-23 发布日期:2015-02-23
  • 通讯作者: 石磊,博士,副教授,主要从事动物生殖生理和繁殖营养调控等方面的研究,Email:sxausl@gmail.com
  • 作者简介:姚晓磊(1989-),男,山西运城人,硕士生,主要从事动物繁殖生理方面的研究,E-mail:1248725303@qq.com
  • 基金资助:

    山西省回国留学人员科研资助项目(2014-重点5);山西农业大学引进人才博士科研启动费资助(2014ZZ04);国家自然科学基金项目(31172211;31272471);国家重点实验室开放课题(SNKF-2012-02);农业部948项目(2010-Z43);山西农业大学横向协作项目(2010HX54);山西省青年基金项目(2012021027-6);山西农业大学科技创新项目(201201)

Expressions of Cell Cycle Regulation Genes CyclinB1 and p34cdc2 in the Testes of Calves Aged on Different Days

YAO Xiao-lei1,SONG Rui-gao1,LÜ Li-hua1,LI Peng-fei2,LIU Qiang1,HUANG Yang1,CHEN Jian-wei1,JIANG Xiao-long1,CAO Xia1,ZHAO Miao-miao1,ZHANG Gui-hua1,WANG Yong-xin1,SHI Lei 1*   

  1. (1.College of Animal Science and Veterinary Medicine,Shanxi Agricultural University,Taigu 030801,China;2.College of Life Science,Shanxi Agricultural University,Taigu 030801,China)
  • Received:2014-10-10 Online:2015-02-23 Published:2015-02-23

摘要:

旨在探究不同日龄犊牛睾丸中细胞周期调控基因CyclinB1和p34cdc2的表达情况。本试验选取发育正常、体重相似的5~6 d荷斯坦哺乳公犊18头,随机分为3组,每组6头,饲喂相同的基础日粮,分别在30(断奶)、60和90 d 时从各组分别随机抽取2头,采集其睾丸备用;通过qRT-PCR技术检测不同日龄犊牛睾丸中细胞周期调控基因CyclinB1和p34cdc2mRNA表达规律,免疫组化技术对睾丸CyclinB1和p34cdc2进行定位分析。结果表明:90 d时CyclinB1和p34cdc2 mRNA表达量显著高于30与60 d(P<0.05),但30与60 d 两种基因mRNA表达量均差异不显著(P>0.05);p34cdc2蛋白在不同日龄犊牛表达差异显著(P<0.05);CyclinB1蛋白在60、90 d的表达量显著高于30 d(P<0.05),但60和90 d差异不显著(P>0.05)。综上表明,CyclinB1和p34cdc2 mRNA和蛋白在睾丸的表达量随着犊牛日龄的增加而增加,且不同的日龄CyclinB1和p34cdc2 mRNA和蛋白表达量存在一定的差异。

Abstract:

This study was performed to investigate the expression of cell cycle regulation genes CyclinB1 and p34cdc2 in testis of calves at different ages.The eighteen 5-6 days healthy Holstein calves (with similar weight) were randomly divided into 3 groups and fed with the similar basal diet.The testes of 2 calves from each group were collected at the time of 30 ,60 and 90 d respectively.QRT-PCR method was used to detect the mRNA expression of the cell cycle regulatory genes CyclinB1 and p34cdc2 in testes of calves at different ages.The location of CyclinB1 and p34cdc2 in the testes was detected by immunohistochemical methods.The results showed that the highest expression of CyclinB1 and p34cdc2 mRNA and protein was obtained in the calves’ testes of 90 d.The mRNA and protein expression levels of CyclinB1 and p34cdc2 increased with the increasing age.The mRNA expression level of the 2 genes at the age of 90 d were significantly higher than that at 30 and 60 d (P<0.05).However,no significant difference was observed between 30 and 60 d (P>0.05).The protein expression of p34cdc2 in the testes of calves at different ages was significant (P<0.05).Although the protein expression of CyclinB1 at 60 and 90 d had no significant difference(P>0.05),they were significantly higher than those at 30 d.This study indicated that the expression of CyclinB1 and p34cdc2  mRNA and protein increased with the increasing age and CyclinB1 and p34cdc2 in the testes of calves at different ages was significant.

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