In another study, it has been found that variation in myogenic factor 5 (MYF5), myogenic factor 6 (MYF6) and MYOG genes were associated with growth and carcass traits in pigs [45].
These myomiRs are controlled by fundamental myogenic regulatory factors, including myoblast determination protein 1 (MYOD1), myogenic factor 5 (MYF5), myogenic factor 6 (MYF6), and myogenin (MYOG), as well as serum response factor (SRF) and myocyte enhancer factor 2 A/ B/C/D (MEF2A/B/C/D) [91, 92].
From genes that are downregulated in female and upregulated in male sfx mice, we found 13 genes (Akt2, Sdc4, Myf6, Pabpn1, Itgb5, Tnnt2, MAP1, Pfn1, Tsix, Xist, Srebf1, Arf5, and Hdgf) that are connected to collagen synthesis.
In an attempt to identify genes with a potential influence on growth and development in salmonid species Moghadam et al [110] suggested a tight association between the IGF1, MYF5 and MYF6 genes and reported of a more ancient polyploidization event that occurred deep in the ray-finned fish lineage.
Muscle fiber formation takes place during embryonic development and is regulated by the MyoD gene family, which consists of four genes, MyoD1 (MYF3), myogenin (MYOG or MYF4), MYF5 and MYF6 (MRF4).