Comparative transcriptome analysis of fast twitch muscle and slow twitch muscle in Takifugu rubripes.

Fast twitch muscle and slow twitch muscle are two important organs of Takifugu rubripes. Both tissues are of ectodermic origin, and the differences between the two muscle fibers reflect the differences in their myofibril protein composition and molecular structure. In order to identify and characterize the gene expression profile in the two muscle fibers of T. rubripes, we generated 54 million and 44 million clean reads from the fast twitch muscle and slow twitch muscle, respectively, using RNA-Seq and identified a total of 580 fast-muscle-specific genes, 1533 slow-muscle-specific genes and 11,806 genes expressed by both muscles. Comparative transcriptome analysis of fast and slow twitch muscles allowed the identification of 1508 differentially expressed genes, of which 34 myosin and 30 ubiquitin family genes were determined. These differentially expressed genes (DEGs) were also analyzed by Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway. In addition, alternative splicing analysis was also performed. The generation of larger-scale transcriptomic data presented in this work would enrich the genetic resources of Takifugu rubripes, which could be valuable to comparative studies of muscles. Copyright © 2017 Elsevier Inc. All rights reserved.

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Kailun Gao, Zhicheng Wang, Xiaoxu Zhou, Haoze Wang, Derong Kong, Chen Jiang, Xiuli Wang, Zhiqiang Jiang, Xuemei Qiu. Comparative transcriptome analysis of fast twitch muscle and slow twitch muscle in Takifugu rubripes. Comparative biochemistry and physiology. Part D, Genomics & proteomics. 2017 Dec;24:79-88

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PMID: 28886574

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