辽宁绒山羊皮肤毛囊mir-1298-5p靶基因预测及表达载体构建

doi:10.11924/j.issn.1000-6850.casb16110144

中国农学通报 ›› 2018, Vol. 34 ›› Issue (5): 123-128.doi: 10.11924/j.issn.1000-6850.casb16110144

所属专题：生物技术；畜牧兽医

辽宁绒山羊皮肤毛囊mir-1298-5p靶基因预测及表达载体构建

徐晶,张桂山,孙丽敏,白曼,项露杰,姜怀志

长春科技学院,吉林农业大学,吉林农业大学,吉林农业大学,吉林农业大学,吉林农业大学动物科学技术学院

收稿日期:2016-11-28 修回日期:2017-04-12 接受日期:2017-05-02 出版日期:2018-02-26 发布日期:2018-02-26
通讯作者: 姜怀志
基金资助:
吉林省科技发展计划项目“肉毛兼用型细毛羊新品种选育及高效扩繁技术”(20160204018NY)；吉林省教育厅项目“肉毛兼用细毛羊皮肤毛囊不同发育时期miRNA筛选及靶基因预测研究”(2015566)。

Target Gene Prediction and Expression Vector Construction of mir-1298-5p in Skin Hair Follicles of Liaoning Cashmere Goat

姜怀志

Received:2016-11-28 Revised:2017-04-12 Accepted:2017-05-02 Online:2018-02-26 Published:2018-02-26

摘要/Abstract

摘要： 探讨辽宁绒山羊皮肤毛囊不同发育时期mir-1298-5p的调控作用及其与靶基因的潜在关系，为mir-1298-5p与其靶基因对皮肤毛囊发育作用提供理论依据。以辽宁绒山羊皮肤毛囊组织为材料，通过miRNA的分离、表达、靶基因预测筛选及靶位点3''UTR表达载体构建，采用RT-PCR进行表达检测，在线靶基因预测软件预测mir-1298-5p的靶基因，并对其靶基因TGF-βR1的靶位点进行克隆测序、缺失突变。结果表明：靶基因预测发现TGF-β R1的3''UTR存在mir-1298-5p种子区结合位点，且mir-1298-5p及其靶基因TGF-β R1均在皮肤毛囊不同发育时期呈现差异性表达。mir-1298-5p对皮肤毛囊周期性发育可能起到一定的调控作用，并成功构建了TGF-βR1 3''UTR表达载体，为后期过表达转染体系的建立和功能基因的验证奠定了基础。

关键词: 亚麻, 亚麻, 原位转化, 条件优化

Abstract: We aim to explore the regulation of mir-1298-5p in skin hair follicles which were at different development stages, and the potential relationship between mir-1298-5p and its target gene, so as to provide theoretical data for skin hair follicles development. Skin hair follicles from Liaoning cashmere goat were used as materials. Through miRNA isolation and expression, target gene prediction and screen, and construction of 3''UTR expression vector, the target gene of mir- 1298- 5p was predicted, sequencing and knocking down mutation of the target site were conducted. Results showed that 3''UTR of TGF-βR1 presented a binding site of mir- 1298- 5p, and mir- 1298- 5p and TGF- βR1 presented differential expression during different development stages of skin hair follicles. So mir- 1298- 5p might play an important role in periodic development of skin hair follicles. In addition, 3''UTR expression vector of TGF- βR1 was successfully constructed, laying a foundation for the construction of over expression transfection system and functional verification of target gene.

徐晶,张桂山,孙丽敏,白曼,项露杰,姜怀志. 辽宁绒山羊皮肤毛囊mir-1298-5p靶基因预测及表达载体构建[J]. 中国农学通报, 2018, 34(5): 123-128.

姜怀志. Target Gene Prediction and Expression Vector Construction of mir-1298-5p in Skin Hair Follicles of Liaoning Cashmere Goat[J]. Chinese Agricultural Science Bulletin, 2018, 34(5): 123-128.

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辽宁绒山羊皮肤毛囊mir-1298-5p靶基因预测及表达载体构建

Target Gene Prediction and Expression Vector Construction of mir-1298-5p in Skin Hair Follicles of Liaoning Cashmere Goat

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