Fig5A. Copyright: Reprinted with permission from Elsevier from [doi:10.1016/S0012-1606(03)00139-8] Dev Biol 258: 307-18, Kablar B; Krastel K; Tajbakhsh S; Rudnicki MA, Myf5 and MyoD activation define independent myogenic compartments during embryonic development. Copyright 2003