在Duroc × Bama Xiang杂交猪中选与肉类生产特征相关的基因,采用全转录组测序
Yupei Xu1, Hui Wang1, Feng Cheng1
1College of Animal Science & Technology, Guangxi University, Nanning 530004, China.
Animals : an open access journal from MDPI
|August 29, 2024
概括
这项研究确定了关键的信使RNA (mRNA),microRNA (miRNA) 和长非编码RNA (lncRNA),它们在快速生长和缓慢生长的猪之间有所不同. 这些发现揭示了影响肉类生产特征的分子机制.
科学领域:
- 动物基因组学 动物基因组学
- 分子生物学分子生物学
- 量化遗传学 量化遗传学
背景情况:
- 猪肉生产特征是复杂的,受遗传和表观遗传因素的影响.
- 了解基因表达差异对于改善猪在经济上重要的特征至关重要.
研究的目的:
- 为了研究不同生长速度的猪的长腰肌肉的转录差异.
- 构建一个竞争的内源性RNA (ceRNA) 监管网络,以确定影响肉类生产的关键监管关系.
主要方法:
- 从快速生长的 (高组) 和缓慢生长的 (低组) Duroc × Bama Xiang F2杂交猪的肌肉样本的全转录组测序.
- 对生理,生化,组织学和肌肉纤维类型特征的分析.
- 不同基因表达分析和ceRNA网络构建.
主要成果:
- 在生长组之间观察到生理和组织学特征的显著差异.
- 248个mRNA,25个miRNA和432个lncRNA被确定为差异表达.
- 关键基因 (例如,MTMR14,PPP1R3A,MYH1,MYH7) 和调节网络 (例如,mir-208b-MYH7,mir-146a-MTMR14) 被强调为肉类生产的潜在调节者.
结论:
- 通过mRNAs,miRNAs和lncRNAs的转录调节在猪肉生产特征中发挥着重要作用.
- 鉴定到的关键基因和监管网络为肉质和生产的基因改进提供了目标.
- 这项研究提供了关于猪肌肉发育的分子基础的见解.
关键词:
ceRNA 监管网络的监管网络.长极长的背部 (longissimus dorsi) 是一个很长的背部.肉类生产 肉类生产猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪整个转录基因组的测序.更多相关视频
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