华北农学报 ›› 2019, Vol. 34 ›› Issue (3): 232-238. doi: 10.7668/hbnxb.201751384

所属专题: 畜牧 生物技术

• 畜牧·兽医 • 上一篇    

山羊FGF9基因克隆及其在成肌细胞分化中的表达模式研究

黄凯1,2, 林亚秋1, 朱江江2, 马洁琼1,2, 王永1,2   

  1. 1. 西南民族大学 生命科学与技术学院, 四川 成都 610041;
    2. 青藏高原动物遗传资源保护与利用四川省重点实验室, 四川 成都 610041
  • 收稿日期:2019-01-19 出版日期:2019-06-28
  • 通讯作者: 王永(1962-),男,四川仁寿人,教授,博士,博士生导师,主要从事动物遗传育种研究。
  • 作者简介:黄凯(1995-),女,重庆涪陵人,在读硕士,主要从事动物遗传育种研究。
  • 基金资助:
    国家重点研究计划课题(2018YFD0502002);四川省“十三五”畜禽育种攻关项目(2016NYZ0045);西南民族大学研究生“创新型科研项目”(CX2018SZ03)

Cloning of Goat FGF9 Gene and Its Expression Pattern in Myoblast Differentiation

HUANG Kai1,2, LIN Yaqiu1, ZHU Jiangjiang2, MA Jieqiong1,2, WANG Yong1,2   

  1. 1. Department of Life Science and Technology, Southwest Minzu University, Chengdu 610041, China;
    2. Protection and Utilization of Animal Genetic Resources in Qingzang Plateau Sichuan Provincial Key Lab, Chengdu 610041, China
  • Received:2019-01-19 Published:2019-06-28

摘要: 旨在克隆山羊FGF9基因序列并对其进行生物信息学分析,阐明FGF9基因组织表达特性及其在成肌细胞分化过程中的表达差异。试验动物为简州大耳羊,利用RT-PCR技术克隆FGF9基因序列,再用实时荧光定量PCR(qRT-PCR)技术检测FGF9在山羊各组织中的表达特性及其在成肌细胞不同分化阶段的表达情况。结果显示,克隆得到山羊FGF9基因序列818 bp,其中ORF区627 bp,编码208个氨基酸,其CDS区核苷酸序列与牛和绵羊有99%的同源性。FGF9蛋白具有1个跨膜结构域和1个FGF家族同源性结构域,为不稳定亲水蛋白。FGF9基因在山羊各组织中均有表达,在肾脏中表达水平最高,极显著高于其他组织(P<0.01)。FGF9基因在诱导分化第2天表达水平显著高于分化前(P<0.05),且在第4天达到极显著水平(P<0.01)。推测其可作为调控山羊成肌细胞分化的候选基因。为进一步探究FGF9基因在山羊肌肉生长中的作用提供理论依据。

关键词: 山羊, FGF9, 克隆, 生物信息学分析, 表达特性, 成肌细胞

Abstract: The aim of this study was to clone the goat FGF9 gene sequence and perform bioinformatics analysis, so as to elucidate the tissue expression characteristics of FGF9 and its differential expression during myoblast differentiation. The experimental animal of this study was the Jianzhou Big-eared sheep. The FGF9 gene sequence was cloned by RT-PCR. Real-time quantitative PCR (qRT-PCR) was performed to detect the expression of FGF9 in different tissues of goat and at different stages of myoblast differentiation. The results showed that the sequence of goat FGF9 gene was 818 bp, with an ORF region of 627 bp, encoding 208 amino acids. The nucleotide sequence of the CDS region was 99% homologous to Bostaurus and Ovisaries. The FGF9 protein had a transmembrane domain and a FGF family homology domain, which was an unstable hydrophilic protein. The FGF9 gene could express in all tissues of goats, and the expression level in the kidney was the highest, which was significantly higher than in other tissues (P<0.01). The expression level of FGF9 gene in the 2nd day of induced differentiation was significantly higher than that before differentiation (P<0.05), and reached a very significant level in the 4th day (P<0.01). This study provided the important data for further exploring the role of FGF9 gene in goat muscle growth.

Key words: Goat, FGF9, Clone, Bioinformatics analysis, Expression characteristics, Myoblast

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引用本文

黄凯, 林亚秋, 朱江江, 马洁琼, 王永. 山羊FGF9基因克隆及其在成肌细胞分化中的表达模式研究[J]. 华北农学报, 2019, 34(3): 232-238. doi: 10.7668/hbnxb.201751384.

HUANG Kai, LIN Yaqiu, ZHU Jiangjiang, MA Jieqiong, WANG Yong. Cloning of Goat FGF9 Gene and Its Expression Pattern in Myoblast Differentiation[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2019, 34(3): 232-238. doi: 10.7668/hbnxb.201751384.

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