MaleMusFIG 5: Division of the SMs to produce the sex muscles.
Epifluorescent images from transgenic animals expressing the hlh-8 ::GFP reporter gene (transcription factor). (Strain source: B.D. Harfe, M. Krause and A. Fire.)
A. L3 animal at approximately 27 hours, lateral view, right side.
B. L3 animal at approximately 30 hours, lateral view, right side.
C. L4 animal at approximately 35 hours, lateral view, right side. Terminal cells are born (SM.xx/xxx). Several migrate to reach final position (aob,pob, grt, gec).
D. L4 animal during morphogenesis at approximately 42 hours, lateral view, left side. Terminal cells in final position. (Fewer cells express reporter at this stage as HLH-8::GFP signal diminishes in maturing terminal cells.)