Fig. 1. VAB-7 is expressed in DB motoneurones, as well as in posterior mesodermal and epidermal precursors. Immunostaining of VAB-7 in (A) 100 cell stage embryo and (B) bean stage embryo is in mesodermal and epidermal prescursors. (C) Two-fold embryo. VAB-7 is found in five posterior epidermal cells (hyp8-hyp11; arrowhead), seven DB motoneurones in the ventral nerve cord (arrow) and two unidentified neurones in the head. One DB and the two neurones in the head are not visible in this image. (D) A threefold embryo showing VAB-7 (green) and unc-25::lacZ, a DD motoneurone marker (red). (E) An L1 larva showing expression of VAB-7 in all seven DB motoneurones. Anterior is towards the left. Scale bar: 10 µm.
