畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (12): 1924-1931.doi: 10.11843/j.issn.0366-6964.2014.12.003

• 遗传繁育 • 上一篇    下一篇

山羊肌内脂肪细胞lncRNA鉴别及特征分析

郑竹清1,2,杜琛1,付绍印1,2,阿娜1,2,张文广1,2*   

  1. (1.内蒙古农业大学动物科学学院,动物育种与繁殖自治区重点实验室,呼和浩特 010020;2.内蒙古ATCG生物信息研究所,呼和浩特 010020)
  • 收稿日期:2014-03-07 出版日期:2014-12-23 发布日期:2014-12-23
  • 通讯作者: 张文广,博士,教授,主要从事数量基因组学暨性状遗传机理研究,E-mail:atcgnmbi@aliyun.com
  • 作者简介:郑竹清(1988-),男,湖北人,硕士生,主要从事生物信息学研究,E-mail:zzq1207@126.com
  • 基金资助:

    国家自然科学基金 (31260538;30960246);内蒙古自治区应用技术研究与开发资金计划(2013)

Identification and Characterization Analysis of Long Non-coding RNA from RNA-seq Data of Intramuscular Adipocytes in Goats

ZHENG Zhu-qing1,2,DU Chen1,FU Shao-yin1,2,A NA1,2,ZHANG Wen-guang1,2*   

  1. (1.Key Laboratory of Animal Genetics,Breeding and Reproduction of the Autonomous Region,College of Animal Science,Inner Mongolia Agricultural University,Hohhot 010020,China;2.Institute of ATCG Bio-Information of Inner Mongolia,Hohhot 010020,China)
  • Received:2014-03-07 Online:2014-12-23 Published:2014-12-23

摘要:

为了探讨长链非编码RNA(Long non-coding RNA,lncRNA)在山羊肌内脂肪细胞分化中的作用。本研究以山羊肌内脂肪细胞成熟前后转录组数据,结合CPC(Coding potential calculator)与CPAT(Coding-potential assessment tool)来预测lncRNA,并对其序列、结构与功能进行了分析。结果表明,通过预测得到1 472个山羊肌内脂肪细胞中表达的lncRNA,其中29个lncRNA在成熟前后具有显著差异。分析发现,山羊lncRNA转录本与开放阅读框(ORF)长度都短于mRNA,保守性低,其近端mRNA在机体免疫系统、脂质及脂质蛋白代谢、脂肪酸与甘油三脂等方面发挥着重要作用。通过生物信息学方法得到山羊肌内脂肪细胞增殖分化过程中差异表达的lncRNA主要在细胞分泌、生长调节和细胞形态变化等方面发挥着重要作用。这对于深入研究山羊lncRNA的生物学功能及其脂肪细胞分化机制具有重要意义。

关键词: lncRNA, 山羊, 转录组, 肌内脂肪细胞

Abstract:

The experiment was conducted to study the lncRNA functions in intramuscular adipocytes development in goats.We had identified lncRNA candidates combining CPAT with CPC,and analysed the sequence,structure and function through high-throughput RNA sequencing based on the transcriptome data from intramuscular preadipocytes and mature adipocytes.A total of 1 472 lncRNAs were obtained and 29 lncRNAs represented significant differential expression between intramuscular preadipocytes and mature adipocytes in goats.The data showed the lncRNAs had shorter transcript and ORF length and lower conservation than mRNA.Function analysis found that the nearby protein-coding genes were important to immune system,metabolism of lipids and lipoproteins,fatty acid,triacylglycerol and ketone body metabolism,etc.The differentially expressed lncRNAs are crucial to cell secretion,regulation of growth and cell morphology which have provided a new clue to research the mechanism of intramuscular adipocytes development.

Key words: lncRNA, goat, transcriptome, intramuscular adipocytes

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