Review: Understanding fish muscle biology in the indeterminate growth species pacu (Piaractus mesopotamicus)

• Published in: Comparative biochemistry and physiology. Part A, Molecular & integrative physiology Vol. 285; p. 111502
• Main Authors: Perez, Érika Stefani, Duran, Bruno Oliveira Silva, Zanella, Bruna Tereza Thomazini, Dal-Pai-Silva, Maeli
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.11.2023
• Subjects: Fish skeletal muscle; Indeterminate growth; Pacu (Piaractus mesopotamicus); Pacu (Piaractus mesopotamicus); Fish skeletal muscle; Indeterminate growth
• ISSN: 1095-6433; 1531-4332
• DOI: 10.1016/j.cbpa.2023.111502

The muscle phenotype of fish is regulated by numerous factors that, although widely explored, still need to be fully understood. In this context, several studies aimed to unravel how internal and external stimuli affect the muscle growth of these vertebrates. The pacu (Piaractus mesopotamicus) is a species of indeterminate muscular growth that quickly reaches high body weight. For this reason, it adds great importance to the productive sector, along with other round fish. In this context, we aimed to compile studies on fish biology and skeletal muscle growth, focusing on studies by our research group that used pacu as an experimental model along with other species. Based on these studies, new muscle phenotype regulators were identified and explored in vivo, in vitro, and in silico studies, which strongly contribute to advances in understanding muscle growth mechanisms with future applications in the productive sector. [Display omitted] •Piaractus mesopotamicus, pacu has indeterminate muscle growth pattern.•Muscle growth in Piaractus mesopotamicus, pacu is regulated by external and internal factors.•In silico analyses revealed new genes that regulate indeterminate fish muscle growth.•Understanding indeterminate fish muscle growth mechanisms may help to provide new insight to optimize finfish production