Abstract
The skeletal muscle growth in fish occurs by hypertrophy and hyperplasia, events regulated by differential expression of myogenic regulatory factors (MRFs). These factors share a highly conserved domain, known as basic helix-loop-helix (bHLH), but little is known about the characteristics and gene expression of MRFs (MyoD, Myogenin, Myf5, and MRF4) in native fish species, such as in the C…