《中国畜牧兽医》---唯一指定的官方网站 ›› 2015, Vol. 42 ›› Issue (6): 1538-1546.doi: 10.16431/j.cnki.1671-7236.2015.06.032

• 遗传繁育 • 上一篇    下一篇

5种山羊脂肪细胞型脂肪酸结合蛋白基因的表达谱研究

杨家大   

  1. 凯里学院环境与生命科学学院, 凯里 556011
  • 收稿日期:2015-01-28 出版日期:2015-06-20 发布日期:2015-07-23
  • 通讯作者: 杨家大 E-mail:yangjiada2@163.com
  • 作者简介:杨家大(1975-),男,侗族,贵州天柱人,博士,副教授,研究方向:动物分子遗传学
  • 基金资助:

    凯里学院规划课题(Z1304);凯里学院获得博士学位(引进教授)教师专项课题(BS201303);贵州省科技联合基金项目(黔科合J字LKK[2013]14号);贵州省普通本科高校自然科学研究项目(黔教合KY字[2014]236);国家自然科学基金(81460572)

Study on the Expression Profiles of A-FABP Gene in 5 Goat Breeds

YANG Jia-da   

  1. College of Environmental and Life Sciences, Kaili University, Kaili 556011, China
  • Received:2015-01-28 Online:2015-06-20 Published:2015-07-23

摘要: 为弄清贵州地方山羊脂肪细胞型脂肪酸结合蛋白(adipocyte fatty acid-binding protein,A-FABP)基因mRNA的表达规律,奠定肉质性状分子标记辅助选择的理论基础,试验以β-actin基因为内参,应用实时荧光定量PCR技术检测黔东南小香羊、贵州白山羊、贵州黑山羊、黔北麻羊和南江黄羊共5个山羊品种心脏、肝脏、肺脏、肾脏、背最长肌、半膜肌及皮下脂肪7个组织器官中A-FABP基因的表达.结果表明,5个山羊品种7个组织中都有A-FABP基因表达,且5个品种中皮下脂肪A-FABP基因的表达水平都较高;在贵州地方山羊A-FABP基因表达的最主要组织——皮下脂肪,以及在与产肉性能直接相关的组织——背最长肌和半膜肌中,黔东南小香羊A-FABP基因mRNA水平都较高.结果提示,贵州地方山羊A-FABP基因mRNA的组织分布模式相似,黔东南小香羊的优良肉质特性或许与其皮下脂肪、背最长肌和半膜肌中A-FABP基因的高表达有关.

关键词: 贵州地方山羊; A-FABP基因; 基因表达

Abstract: In order to understand the regularities of A-FABP gene expression in Guizhou native goats,and to establish the theoretical basis of molecular marker assisted selection for meat quality traits,β-actin gene was used as control,expression levels of A-FABP gene in livers,kidneys,hearts,lungs,longissimus muscle,semimembranosus muscle and subcutaneous fat of Qiandongnan small Xiang goat,Guizhou White goat,Guizhou Black goat,Qianbei Ma goat and Nanjiang Yellow goat were detected by Real-time fluorescence quantitative PCR.The results showed that A-FABP gene was expressed in all 7 tissues of 5 goat breeds,and the expression levels of A-FABP gene mRNA were all high in subcutaneous fat of 5 goat breeds;In subcutaneous fat,which was the main tissue of A-FABP gene expression in Guizhou native goats,and in longissimus muscle and semimembranosus muscle,which were directly associated with meat production property,A-FABP gene mRNA levels were all high in Qiandongnan small Xiang goat.The results suggested that the tissue distribution patterns of A-FABP gene mRNA in Guizhou native goat breeds were similar to each other.The excellent meat quality of Qiandongnan small Xiang goat might be related with the high expression levels of A-FABP gene mRNA in it's subcutaneous fat,longissimus muscle and semimembranosus muscle.

Key words: Guizhou native goat; A-FABP gene; gene expression

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