MaleMusFIG 16: Sarcomeres of the longitudinal muscles.

A. Epifluorescent image from transgenic animal expressing the mab-23 reporter gene (transcription factor), left lateral view. (Strain source: R. Lints and S.W. Emmons.)
B. Epifluorescent image from transgenic animal expressing the unc-27 reporter gene (Troponinl), ventral view. (Strain source: L. Jia and S.W. Emmons.)