Transcriptome Analysis Of Skeletal Muscle In Pigs With Divergent Residual Feed Intake Phenotypes
文献类型: 外文期刊
作者: Hou, XH; Pu, L; Wang, LG; Liu, X; Gao, HM; Yan, H; Zhang, JS; Zhang, YB; Yue, JW; Zhang, LC; Wang, LX
作者机构:
关键词: RFI; pig; skeletal muscle; Illumina sequencing
期刊名称: DNA AND CELL BIOLOGY
ISSN: 1044-5498
年卷期: 2020 年 39 卷 3 期
页码:
收录情况: JCR(2021版)
摘要: Residual feed intake (RFI) is defined as the difference between the observed and expected feed intake for maintenance and growth requirements. In this study, the expression profiles of mRNAs and long noncoding RNAs (lncRNAs) from skeletal muscle in Duroc pigs with divergent RFI phenotypes were investigated by Illumina sequencing. Finally, a total of 2195 annotated lncRNAs and 1976 novel lncRNAs were obtained. About 210 mRNAs and 43 lncRNAs were differentially expressed among high and low RFI pigs. The differentially expressed mRNAs were potentially involved in the biological processes of lipid metabolism, extracellular matrix organization, cell proliferation, and cell adhesion. The lipolysis in skeletal muscle was increased in high RFI pigs, suggesting that high RFI pigs might need more energy than low RFI pigs. However, skeletal muscle development was increased in low RFI pigs. These results suggested that low RFI pigs might be more efficient in energy utilization during skeletal muscle growth. The function of lncRNA was also analyzed by target prediction. Nine lncRNAs might be candidate lncRNAs for the determination of RFI phenotype, by the regulation of the biological processes of lipid metabolism, cell proliferation, and cell adhesion. This study should facilitate a further understanding of the molecular mechanism for the determination of RFI phenotype in pigs.
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