畜牧兽医学报 ›› 2016, Vol. 47 ›› Issue (3): 509-514.doi: 10.11843/j.issn.0366-6964.2016.03.012

• 遗传繁育 • 上一篇    下一篇

EphA2及EphrinA2在敖汉细毛羊皮肤中的表达及分布规律研究

贺建宁1,王春亮2,赵金山1,程明3,刘开东3,刘积凤1,柳楠1*   

  1. (1.青岛农业大学动物科技学院,青岛 266109; 2.公安部南昌警犬基地,南昌 330100; 3.青岛市畜牧兽医研究所,青岛 266121)
  • 收稿日期:2015-09-08 出版日期:2016-03-23 发布日期:2016-03-23
  • 通讯作者: 柳楠,教授,博士,E-mail:nanliu@sina.com
  • 作者简介:贺建宁(1984-),男,陕西靖边人,博士,从事羊遗传育种与繁殖研究,Tel:0532-88030498,E-mail:hexingxing104@163.com
  • 基金资助:

    国家绒毛用羊产业技术体系专项资金(CARS-40);国家自然科学基金项目(31402047);青岛农业大学高层次人才科研基金(631410)

Expression and Distribution of EphA2 and EphrinA2 in Skin of Aohan Fine Wool Sheep

HE Jian-ning1,WANG Chun-liang2,ZHAO Jin-shan1,CHENG Ming3,LIU Kai-dong3,LIU Ji-feng1,LIU Nan1*   

  1. (1.College of Animal Science and Technology,Qingdao Agricultural University,Qingdao 266109, China;2.Nanchang Police Dog Base of the Ministry of Public Security,Nanchang 330100, China;3.Qingdao Institute of Animal Science and Veterinary Medicine,Qingdao 266121,China)
  • Received:2015-09-08 Online:2016-03-23 Published:2016-03-23

摘要:

本文旨在探究EphA2及其配体EphrinA2基因在细毛羊毛囊发生、发育过程中的表达与分布规律,为毛囊发育的分子调控机制提供理论基础。试验以敖汉细毛羊生长发育不同时期体侧部皮肤为材料,采用实时荧光定量 PCR 和免疫组化技术,对EphA2和EphrinA2基因的mRNA和蛋白水平在皮肤毛囊中的表达规律进行研究。实时荧光定量 PCR结果显示:EphA2和EphrinA2基因的表达量在胎龄120 d时显著高于胎龄90 d和出生后1 d(P<0.01);出生后1和30 d时差异不显著(P>0.05)。免疫组化结果表明:EphA2及EphrinA2蛋白在胎龄90和120 d、出生后1和30 d,4个时期的细毛羊体侧皮肤毛囊发育过程中,主要在毛囊、毛母质、外根鞘和表皮中表达,且呈现一定的特异性表达。综上结果表明,EphA2及EphrinA2与细毛羊皮肤毛囊形态发生、发育过程密切相关,可为相关研究提供借鉴。

Abstract:

The objectives of the study were to identify the expression and distribution of EphA2 and EphrinA2 gene in hair follicles development and morphogenesis of Fine Wool sheep. The results might lay a theoretical basis for understanding molecular regulation mechanism of hair follicle development. Skins of Aohan Fine Wool sheep in the different period (prenatal stage, E90 d and E120 d; after birth, 1 d and 30 d) were selected. The qRT-PCR and immunohistochemical technologies were used to study their levels of mRNA and protein. The qRT-PCR results showed that mRNA expression level of EphA2 and EphrinA2 gene in E120 d were significantly higher than that of E90 d and 1 d (P<0.01),but 1 d and 30 d were not significantly difference (P>0.05). Immunohistochemical detection results showed that, the level and localization of EphA2 and EphrinA2 protein were spatial and temporal specificity among E90 d, E120 d, 1 d and 30 d of sheep skin body side. And they mainly expressed in hair follicle, hair matrix outer root sheath and epidermis. In conclusion, EphA2 and EphrinA2 may play important roles in hair follicle development and morphogenesis. These results would provide fundamental information for the related research fields.

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