畜牧兽医学报 ›› 2013, Vol. 44 ›› Issue (12): 1882-1890.doi: 10.11843/j.issn.0366-6964.2013.12.004

• 遗传繁育 • 上一篇    下一篇

基于时序表达谱芯片挖掘鸡脂肪酸代谢关键调控基因

王洪志,常国斌*,马腾,翟飞,夏明秀,刘璐,陈静,徐璐,陈国宏*   

  1. (扬州大学动物科学与技术学院,扬州 225009)
  • 收稿日期:2013-05-08 出版日期:2013-12-23 发布日期:2013-12-24
  • 通讯作者: 常国斌,E-mail:passioncgb@163.com;陈国宏,E-mail:ghchen@yzu.edu.cn
  • 作者简介:王洪志(1989-),男,山东德州人,硕士生,主要从事生物信息学研究,E-mail:whz19890515@163.com
  • 基金资助:

    国家自然科学基金项目(31172199);国家科技支撑计划(2011BAD28B03)

Mining Key Genes of Chicken Fatty Acid Metabolism Based on Time Series Microarray

WANG Hong-zhi, CHANG Guo-bin*, MA Teng, ZHAI Fei, XIA Ming-xiu,LIU Lu, CHEN Jing, XU Lu, CHEN Guo-hong*   

  1. (College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China)
  • Received:2013-05-08 Online:2013-12-23 Published:2013-12-24

摘要:

不同脂肪酸的代谢产物决定了鸡肉风味的差异,找出影响鸡肌肉组织中脂肪酸代谢的关键调控基因对提高肉品质以及对优质肉鸡新品系选育具有重要意义。本研究对KEGGWikipathway数据库中脂肪酸代谢网络进行整合分析,挖掘鸡脂肪酸代谢的关键基因,通过Gene Spring筛选出不同周龄的肌肉组织中表达谱芯片与关键基因共表达的差异基因(Pearson相关系数≥0.9),然后导入Cytoscape进行共表达网络分析,最后进行跨物种检索关键调控基因功能,得到鸡肌肉组织中脂肪酸代谢的节点基因和相关通路。结果表明,Ep300Traf2Pak1等基因是影响鸡肌肉中脂肪酸代谢的节点基因,MAPK通路、ErbB通路和Herpes simplex infection通路可能是肌肉中脂肪酸代谢调控的关键通路,该结果为研究家禽肌肉中脂肪酸代谢的分子机制和进一步筛选优质肉质基因提供了基础资料。

关键词: 脂肪酸, 表达谱芯片, 节点基因, 调控通

Abstract:

Fatty acid metabolic products determine the flavor of chicken meat. Mining key genes regulating fatty acid metabolism has very important significance for improving meat quality and breeding new high quality broiler lines. The databases of KEGG and Wikipathway were used to analyze fatty acid metabolic networks, to find the key genes regulating fatty acid metabolism. The differential genes with co-expression of key genes in microarray in thigh muscle of chicken with different ages were filtered by Gene Spring(Pearson correlation coefficient over 0.9), then imported to co-expression network by Cytoscape. Finally, the functions of key regulatory genes were found by across-species retrievalthe node genes and related pathways of fatty acid metabolism were mined in chicken muscle tissue. The results showed that Ep300Traf2 and Pak1 were node genes affecting fatty acid metabolism, and MAPK signaling pathway, ErbB signaling pathway and Herpes simplex infection pathway were critical pathways regulating fatty acid metabolism in chicken muscle tissue.These results provide basic information for studying the molecular mechanisms about fatty acid metabolism and for further screening quality meats genes in poultry.

Key words: fatty acid(FA), microarray, node gene, regulatory pathway

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