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在中国原住民宁猪的脂肪沉积过程中编辑miRNA的表征和功能分析

Jiayu Lv^1,2, Fang Yang^1,2, Yiyang Li^1,2

¹College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China.

Veterinary sciences

|April 26, 2024

概括

研究人员在猪脂肪发育过程中绘制了microRNA (miRNA) 编辑部位的地图. 他们发现了特定的编辑模式,并确定了miR-497作为脂肪沉积的潜在调节者,为猪生长提供了洞察力.

科学领域:

分子生物学分子生物学
基因组学就是基因组学.
动物科学动物科学

背景情况:

微RNA (miRNA) 编辑在基因调节中起着至关重要的作用.
在脂肪发育过程中了解miRNA编辑动态是优化猪生长和肉质的关键.

研究的目的:

在宁夏猪的脂肪发育过程中识别和描述活跃的miRNA编辑部位.
分析miRNA编辑对调节脂肪沉积的功能影响.

主要方法:

小RNA测序 (小RNA-seq) 在四个发育阶段的宁翔猪皮下脂肪组织上进行.
一个修订后的管道被用来识别和量化miRNA编辑站点.
进行了目标基因预测和KEGG丰富分析.

主要成果:

总共有505个miRNA编辑站点被确定,其中C-to-U是最常见的类型.
最多的miRNA编辑事件发生在90天,最少的发生在150天.
在种子区域的9个miRNA编辑部位显示出显著的差异,包括ssc-miR-23a,ssc-miR-27a和ssc-miR-497.
预测miR-497的编辑会抑制脂肪合成并调节脂肪沉积.

结论:

这项研究提供了猪脂肪发育过程中miRNA编辑的全面地图.
编辑miRNA,特别是miR-497的编辑,与调节猪的脂肪沉积有关.
这些发现为控制猪脂肪沉积的分子机制提供了新的见解.

关键词:

宁夏的猪,就是宁夏的猪.脂肪沉积是脂肪沉积的过程.高通量测序的高通量测序编辑miRNA编辑

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