Fig. 1. Seven mutants develop hepatomegaly by day 5 of development. (A) CY3-SA
specifically labels the liver and gut in day 5 wild-type embryos. Scale bar:
100 µm. (B) Live images (left) and CY3-SA-labeled livers of wild-type and
mutant embryos. The liver is outlined in red. The gut is indicated in each
embryo, except fgr, which has an underdeveloped gut that does not
label with CY3-SA. Scale bars: 50 µm.