...
首页> 外文期刊>Journal of genetics >Identification of genes showing differential expression profile associated with growth rate in skeletal muscle tissue of Landrace weanling pig
【24h】

Identification of genes showing differential expression profile associated with growth rate in skeletal muscle tissue of Landrace weanling pig

机译:鉴定显示长白猪断奶仔猪骨骼肌组织中与生长速率相关的差异表达谱的基因

获取原文
           

摘要

Suppression subtractive hybridization was used to identify genes showing differential expression profile associated withgrowth rate in skeletal muscle tissue of Landrace weanling pig. Two subtracted cDNA populations were generated from mus-culus longissimus muscle tissues of selected pigs with extreme expected breeding values at the age of 100 kg. Three upregu-lated genes (EEF1A2,TSG101andTTN) and six downregulated genes (ATP5B,ATP5C1,COQ3,HADHA,MYH1andMYH7)in pig with genetic propensity for higher growth rate were identified by sequence analysis of 12 differentially expressed clonesselected by differential screening following the generation of the subtracted cDNA population. Real-time PCR analysis con-firmed difference in expression profiles of the identified genes in musculus longissimus muscle tissues between the two Lan-drace weanling pig groups with divergent genetic propensity for growth rate. Further, differential expression of the identifiedgenes except for theTTNwas validated by Western blot analysis. Additionally, the eight genes other than theATP5C1co-localized with the same chromosomal positions as QTLs that have been previously identified for growth rate traits. Finally,the changes of expression predicted from gene function suggested association of upregulation of expression of theEEF1A2,TSG101andTTNgenes and downregulation of theATP5B,ATP5C1,COQ3,HADHA,MYH1andMYH7gene expressionwith increased growth rate. The identified genes will provide an important insight in understanding the molecular mechanismunderlying growth rate in Landrace pig breed.
机译:使用抑制性消减杂交来鉴定在长白猪断奶仔猪骨骼肌组织中表现出与生长速率相关的差异表达谱的基因。从选定猪的小背肌肌肉组织中产生两个减去的cDNA群体,它们在100公斤龄时具有极高的预期繁殖值。通过对12个差异表达克隆的序列分析确定了猪的三个上调基因(EEF1A2,TSG101和TTN)和六个下调基因(ATP5B,ATP5C1,COQ3,HADHA,MYH1和MYH7),这些基因具有较高的生长速度,这些基因通过差异筛选筛选后产生被减去的cDNA群体的数量。实时PCR分析证实了两个兰氏断奶仔猪群中长肌小肌肉组织中已鉴定基因的表达谱差异,其生长速率具有不同的遗传倾向。此外,通过蛋白质印迹分析证实了除TTN外的已鉴定基因的差异表达。此外,除ATP5C1以外的八个基因与先前确定的生长速率性状的QTL的染色体位置相同。最后,从基因功能预测的表达变化提示EEF1A2,TSG101和TTN基因表达上调与ATP5B,ATP5C1,COQ3,HADHA,MYH1和MYH7基因表达下调与生长速率增加相关。鉴定出的基因将为了解长白猪繁殖率背后的分子机制提供重要的见识。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号