›› 2016, Vol. 43 ›› Issue (2): 333-339.doi: 10.16431/j.cnki.1671-7236.2016.02.007

• 生物技术 • 上一篇    下一篇

乌珠穆沁羊生长分化因子11基因外显子1序列CpG位点的甲基化模式分析

何小龙1, 李蓓2, 付绍印1, 刘永斌1, 祁云霞1, 王标1, 特日格勒1, 荣威恒1, 达赖1   

  1. 1. 内蒙古自治区农牧业科学院, 呼和浩特 010031;
    2. 内蒙古农业大学动物科学学院, 呼和浩特 010018
  • 收稿日期:2015-08-14 出版日期:2016-02-20 发布日期:2016-03-02
  • 通讯作者: 刘永斌 E-mail:ybliu117@126.com
  • 作者简介:何小龙(1983-),男,陕西宝鸡人,博士,副研究员,研究方向:生物技术与草食家畜育种,Tel:0471-5303209;E-mail:hexiaolong1983@163.com
  • 基金资助:
    内蒙古自治区农牧业科学院青年创新基金(2013QNJJM01);国家肉羊产业技术体系(CARS-39);内蒙古自治区农牧业科学院创新基金(2015CXJJM02)

Analysis of the CpG Methylation Pattern on GDF11 Gene Exon 1 in Ujumqin Sheep

HE Xiao-long1, LI Bei2, FU Shao-yin1, LIU Yong-bin1, QI Yun-xia1, WANG Biao1, TERI Gele1, RONG Wei-heng1, DA Lai1   

  1. 1. Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China;
    2. College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
  • Received:2015-08-14 Online:2016-02-20 Published:2016-03-02

摘要: 为了探讨乌珠穆沁羊生长分化因子11 (growth differentiation factor 11,GDF11)基因外显子1的甲基化模式,本研究采用亚硫酸氢盐测序PCR (BSP)的方法对普通乌珠穆沁羊和多脊椎乌珠穆沁羊GDF11基因外显子1的甲基化水平进行检测,通过检测发现普通乌珠穆沁羊GDF11基因外显子1的平均甲基化率为0.123,多脊椎乌珠穆沁羊的平均甲基化率为0.569,差异显著性检验表明这两组数据间差异极显著(P<0.01),即多脊椎乌珠穆沁羊GDF11基因外显子1中的CpG甲基化率极显著高于普通乌珠穆沁羊(P<0.01).通过分析GDF11基因外显子1的13个CpGs位点发现,多脊椎乌珠穆沁羊CpG_11和CpG_13位点的甲基化率值最高,达到90%,推测这两个位点的甲基化可能与乌珠穆沁羊的脊椎数增加有关,是导致多脊椎发生的主要原因.

关键词: 乌珠穆沁羊; GDF11基因; CpG位点; 甲基化; 亚硫酸氢盐测序

Abstract: In order to investigate the methylation patterns on growth differentiation factor 11 (GDF11) gene exon 1 in Ujumqin sheep,we compared the level of methylation of GDF11 gene exon 1 in common Ujumqin sheep (CUS) and multi-vertebrae Ujumqin sheep (MUS) using the bisulfite sequencing PCR (BSP) method.The results showed that the average methylation rate of GDF11 gene exon 1 for MUS was extremely significantly higher than that for CUS (P<0.01),the average methylation rate of common Ujumqin sheep and multi-vertebrae Ujumqin sheep were 0.123 and 0.569.Analysis of 13 CpGs of GDF11 gene exon 1 showed that the CpG_11 and CpG_13 methylation sites had the highest methylation rate with a combined methylation value of 90% for MUS.Our results suggested that differential DNA methylation of GDF11 gene exon 1,in particular at these two sites,might cause the increase in the number of vertebrae in Ujumqin sheep.

Key words: Ujumqin sheep; GDF11 gene; CpG site; methylation; bisulfite sequencing

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