浙江农业学报 ›› 2022, Vol. 34 ›› Issue (3): 471-479.DOI: 10.3969/j.issn.1004-1524.2022.03.07

• 动物科学 • 上一篇    下一篇

miR-144靶基因预测与组织表达分析

丁燕玲(), 王鹏飞, 杨朝云, 周小南, 赵志艳, 张岩峰, 史远刚, 康晓龙()   

  1. 宁夏大学 农学院,宁夏 银川 750021
  • 收稿日期:2021-06-08 出版日期:2022-03-25 发布日期:2022-03-30
  • 通讯作者: 康晓龙
  • 作者简介:康晓龙,E-mail: kangxl9527@126.com
    丁燕玲(1996—),女,甘肃兰州人,硕士研究生,研究方向为动物遗传育种与繁殖。E-mail: 1987560382@qq.com
  • 基金资助:
    国家自然科学基金(31760647);国家自然科学基金(31660645);宁夏自然科学基金(2020AAC03075);宁夏自然科学基金(2021AAC03027)

Prediction of target genes and tissue expression analysis of miR-144 in cattle

DING Yanling(), WANG Pengfei, YANG Chaoyun, ZHOU Xiaonan, ZHAO Zhiyan, ZHANG Yanfeng, SHI Yuan- gang, KANG Xiaolong()   

  1. School of Agriculture,Ningxia University, Yinchuan 750021, China
  • Received:2021-06-08 Online:2022-03-25 Published:2022-03-30
  • Contact: KANG Xiaolong

摘要:

为研究miR-144的靶基因与miR-144在牛不同组织中的表达规律,预测其对肌肉生长发育的调节机制,对miR-144在各物种间的保守性、潜在靶基因及其富集通路进行分析,通过qRT-PCR方法检测牛不同组织中miR-144的表达。结果表明,miR-144成熟序列在各物种间保守性较高;富集分析发现,靶基因显著富集于血管平滑肌收缩、cGMP-PKG、cAMP等与肌肉发育相关通路中。qRT-PCR结果显示,miR-144在肝中的表达量最高,在皮下脂肪中的表达量最低;miR-144在腿肌和心中的表达差异不显著(P>0.05),但在肝中的表达显著(P<0.05)高于腿肌和心;miR-144在背最长肌中的表达显著(P<0.05)高于瘤胃和皮下脂肪,而瘤胃和皮下脂肪组织间表达差异不显著(P>0.05)。

关键词: miR-144, 组织表达, 靶基因预测, 实时荧光定量PCR, 富集通路

Abstract:

To study the target genes of miR-144 and their expression patterns in different tissues of cattle, and to predict the regulatory mechanism of miR-144 on muscle growth and development, the conservation, potential target genes and their enrichment pathways of miR-144 among different species were analyzed, and expression of miR-144 in different tissues of cattle was detected by qRT-PCR. The results showed that mature sequence of miR-144 was highly conserved among species; Enrichment analysis showed that target genes were significantly enriched in vascular smooth muscle contraction, cGMP-PKG, cAMP and other pathways related to muscle development. qRT-PCR results showed that miR-144 had the highest expression in liver and the lowest expression in subcutaneous fat; There was no significant difference(P>0.05) in the expression of miR-144 in leg muscle and heart, but the expression of miR-144 in liver was significantly (P<0.05) higher than that in leg muscle and heart; The expression of miR-144 in longissimus dorsi was significantly (P<0.05) higher than that in rumen and subcutaneous adipose, but there was no significant difference (P>0.05) between rumen and subcutaneous adipose.

Key words: miR-144, tissue expression, target gene prediction, qRT-PCR, enrichment pathway

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