畜牧兽医学报 ›› 2012, Vol. 43 ›› Issue (6): 843-848.

• 遗传繁育 •    下一篇

不同品种猪肌肉组织miR-1和miR-133基因的表达分析

习欠云1,周莲莲1,李虹仪1,韩东2,束刚1,王松波1,高萍1,朱晓彤1,王修启1,江青艳1,张永亮1*   

  1. 1. 华南农业大学动物科学学院,广州 510642; 2. 吉林大学畜牧兽医学院, 长春 130062
  • 收稿日期:2011-08-09 修回日期:1900-01-01 出版日期:2012-06-25 发布日期:2012-06-25
  • 通讯作者: 张永亮
  • 作者简介:习欠云(1973-),男,江西樟树人,副教授,博士,主要从事动物生物化学与分子生物学研究,Tel:020-85284937,E-mail:xqy0228@163.com
  • 基金资助:

    国家自然科学基金资助(31072105);广东省自然科学基金(10451064201005460):华南农业大学校长基金(2007K005)

The Expression Analysis of miR-1 and miR-133 in Longissimus dorsi Muscle from Different Pig Breeds

XI Qian-yun1, ZHOU Lian-lian1, LI Hong-yi1, HAN Dong2, SHU Gang1, WANG Song-bo1, GAO Ping1, ZHU Xiao-tong1, WANG Xiu-qi1, JIANG Qing-yan1, ZHANG Yong-liang1*   

  1. 1. College of Animal Science, South China Agricultural University, Guangzhou 510642,China; 2. College of Animal Husbandry and Veterinary, Changchun 130062, China
  • Received:2011-08-09 Revised:1900-01-01 Online:2012-06-25 Published:2012-06-25
  • Contact: ZHANG Yongliang

摘要:

本研究旨在探讨猪miR-1和miR-133基因在不同品种猪肌肉组织中的表达情况。试验以180 日龄的蓝塘猪、长白猪以及大花白猪的背最长肌为材料,采用Stem-loop实时定量RT-PCR法检测miR-1和miR-133在长白猪、大花白猪及蓝塘猪背最长肌组织中的表达情况。结果表明,在蓝塘猪中,miR-1的表达量分别为长白猪和大花白猪的4.7和6.4倍,前者与后两者之间表达水平有显著的差异(P<0.05),而后两者之间表达量差异不显著(P>0.05);同样,miR-133在蓝塘猪中的表达量最高,其次为长白猪,两者分别是大花白猪的7.2和5.7倍,且差异显著(P<0.05),但蓝塘猪与长白猪之间差异不显著(P>0.05)。miR-1和miR-133在不同品种猪中存在特异性表达,提示可能与肌肉发育性状相关。

关键词: stem-loop RT-PCR, 肉质性状, miR-1, miR-133, 表达分析

Abstract:

This study aimed to investigate the expression abundance of miR-1 and miR-133 in the highest longissimus dorsi muscle from 180-day-old pigs including Landrace, Lantang and Dahuabai pigs using Real-time quantification of microRNAs by stem-loop RT-PCR method. The results showed that miR-1 abundance was the highest in Lantang, and 4.7 times higher than that in Landrace and 6.4 times higher than that in Dahuabai pigs(P<0.05), respectively, but not significantly different(P>0.05) between Landrace and Dahuabai pigs. miR-133 abundance was also the highest in Lantang, followed by Landrace and Dahuabai pigs, the former two were significantly 7.2 and 5.7 times higher(P<0.05) than that in the latter, respectively, but there was no significant differences(P>0.05) between Landrace and Lantang pigs. The results indicate that miR-1 and miR-133 expression are specific among the pig breeds, suggesting that the abundance of miR-1 and miR-133 are associated with meat quality traits in pigs.

Key words: stem-loop RT-PCR, meat quality traits, miR-1, miR-133, expression analysis

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