畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (8): 1463-1470.doi: 10.11843/j.issn.0366-6964.2015.08.024

• 研究简报 • 上一篇    下一篇

重度冷应激对三河牛血液生化指标及相关基因表达的影响

李玮1,3 ,刘蕤1,马尧2,李金龙2,吴宏军4,刘爱荣5,俞英1,徐青2,王雅春1*   

  1. (1.中国农业大学动物科技学院,农业部动物遗传育种试验室,畜禽育种国家工程实验室,北京100193;2.北京交通大学生命科学与生物工程研究院,北京 100044;3.宁夏大学农学院,银川 750021;4.内蒙古谢尔塔拉种牛场,海拉尔 021008;5.内蒙古海拉尔农垦集团,海拉尔 021008)
  • 收稿日期:2014-11-07 出版日期:2015-08-23 发布日期:2015-08-23
  • 通讯作者: 王雅春,教授,E-mail:wangyachun@cau.edu.cn
  • 作者简介:李玮(1990-),女,河北邢台人,硕士生,主要从事动物分子遗传学研究,E-mail:lw9056@163.com;刘蕤(1988-),女,四川宜宾人,硕士,主要从事动物分子数量遗传学研究,E-mail:kkrabbit-2007@163.com。李玮和刘蕤为共同第一作者
  • 基金资助:

    国家自然科学基金(31172191);“十二五”科技支撑计划(2011BAD28B02);现代农业产业技术体系建设专项资金(CARS-37);长江学者和创新团队发展计划(IRT1191)

Effects of Severe Cold Stress on Blood Biochemical Parameters and Related Gene Expression in Sanhe Cattle

LI Wei1,3,LIU Rui1,MA Yao2,LI Jin-long2,WU Hong-jun4,LIU Ai-rong5,YU Ying1,XU Qing2,WANG Ya-chun1*   

  1. (1.Key Laboratory of Agricultural Animal Genetics and Breeding,National Engineering Laboratory of Animal Breeding,College of Animal Science and Technology,China Agricultural University,Beijing 100193,China;2.Institute of Biological Science and Bioengineering,Beijing Jiaotong University,Beijing 100044,China;3.School of Agriculture,Ningxia University,Yinchuan 750021,China;4.Inner Mongolia Xieertala Cattle Breeding Farm,Hailaer 021008,China;5.Inner Mongolia Hailaer Agricultural Reclamation Group,Hailaer 021008,China)
  • Received:2014-11-07 Online:2015-08-23 Published:2015-08-23

摘要:

本研究旨在检测与牛冷应激反应相关的生化指标,筛选参与牛冷应激反应的相关基因。以内蒙古三河牛为研究对象,对30头青年牛进行室外-32 ℃冷应激处理3 h,采集冷应激前后试验个体血样,检测血液生化指标及基因表达量的变化。冷应激3 h后,试验个体T3、T4及ACTH3个血液生化指标极显著升高(P<0.01)。mRNA差异显示方法(DDRT)检测到基因LIN54和KLF12在冷应激后表达量降低,荧光定量RT-PCR验证了冷应激后2个基因表达下调(LIN54下调显著(P<0.05),KLF12下调极显著(P<0.01))的结果。筛选到的2个基因分别属于LINC和KLF家族,LINC参与有丝分裂基因的活化,KLF参与细胞增殖和凋亡。T3、T4及ACTH 3项生化指标可以初步作为衡量三河牛冷应激反应强弱的侯选指标在大群体中进行验证,筛选到的2个基因,可作为参与三河牛冷应激反应的重要侯选基因,进一步研究2个基因在牛冷应激反应中的作用机制,综合这些生化指标及侯选基因表达的变化,用于评价个体冷应激反应的强度,在三河牛抗冷应激育种中将具有更广泛的应用价值。

Abstract:

The aim of this study was to detect the biochemical indexes and relevant genes related to cold stress in Sanhe cattle.Thirty heifer Sanhe cattle in Inner Mongolia were kept at -32 ℃ for 3 h,and then blood samples were collected before and after cold stress separately to detect the biochemical indexes and gene expression changes.After 3 h cold stress,T3,T4 and ACTH in blood significantly increased (P<0.01).The expressions of LIN54 and KLF12 decreased in silver staining map produced by mRNA differential display method (DDRT),decrease of the 2 genes expression were further verified at the level of P<0.05 for LIN54 and P<0.01 for KLF12 by fluorescence quantitative RT-PCR.The 2 genes belonged to LINC and KLF families,respectively,LINC involved in mitotic gene activation,KLF involved in cell proliferation and apoptosis.T3,T4 and ACTH may be used as the candidate indexes to measure the strength of cold stress in large population,LIN54 and KLF12 may be the important candidate genes for further study on genetic mechanism of cold stress in cattle.The combination of these biochemical indexes and expression change of candidate genes would be used to assess the change of individual under cold stress,which will be more valuable in breeding for cold resistance ability in Sanhe cattle.

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