Fig. 2.

The zebrafish gsp/myoVb mutant exhibits a smooth intestine phenotype during 4 to 6 days post-fertilisation.

The bright field images of developing zebrafish wild type larvae (A, E, I) and their intestines (C, G, K) exhibit rough intestinal walls indicating the presence of tissue folds. The gsp/myoVb mutant larvae (B, F, J) and their intestines (D, H, L) show smooth intestinal walls suggesting absence of intestinal folds. Arrows point to the intestine in all images. Histological sections (M) of different parts of the gut of wild type sibling and gsp/myoVb mutant. In total 4 wild type siblings and 4 mutants were analysed by histology. Abbreviation: sib = sibling.