Cheng Bohan, Leng Li, Li Ziwei, Wang Weijia, Jing Yang, Li Yudong, Wang Ning, Li Hui, Wang Shouzhi
Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China.
Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin, China.
Front Cell Dev Biol. 2021 Feb 5;9:590468. doi: 10.3389/fcell.2021.590468. eCollection 2021.
One of the main objectives of broiler breeding is to prevent excessive abdominal adipose deposition. The role of RNA modification in adipose deposition is not clear. This study was aimed to map mA modification landscape in chicken adipose tissue. MeRIP-seq was performed to compare the differences in mA methylation pattern between fat and lean broilers. We found that start codons, stop codons, coding regions, and 3'-untranslated regions were generally enriched for mA peaks. The high mA methylated genes (fat birds vs. lean birds) were primarily associated with fatty acid biosynthesis and fatty acid metabolism, while the low mA methylated genes were mainly involved in processes associated with development. Furthermore, we found that the mRNA levels of many genes may be regulated by mA modification. This is the first comprehensive characterization of mA patterns in the chicken adipose transcriptome, and provides a basis for studying the role of mA modification in fat deposition.
肉鸡育种的主要目标之一是防止腹部脂肪过度沉积。RNA修饰在脂肪沉积中的作用尚不清楚。本研究旨在绘制鸡脂肪组织中的m⁶A修饰图谱。进行了MeRIP-seq以比较肥胖和瘦型肉鸡之间m⁶A甲基化模式的差异。我们发现起始密码子、终止密码子、编码区和3'非翻译区通常富含m⁶A峰。高m⁶A甲基化基因(肥鸡与瘦鸡相比)主要与脂肪酸生物合成和脂肪酸代谢相关,而低m⁶A甲基化基因主要参与与发育相关的过程。此外,我们发现许多基因的mRNA水平可能受m⁶A修饰调控。这是鸡脂肪转录组中m⁶A模式的首次全面表征,并为研究m⁶A修饰在脂肪沉积中的作用提供了基础。