Examples of trunk, tail and multiple phenotypes.

<p>(A,B) Compared to the wild-type, the trunk and papillae of <i>chiodino</i> are smaller. (C) Anterior trunk and papillae do not form in <i>mezacapa</i>. (D) An endodermal structure is observed in <i>bermuda</i> that resembles a premature organ rudiment (black arrow). (E,F) The trunk is smaller in the multiple phenotype <i>pigtail</i> and <i>pavese</i> mutations. (G) <i>fuoriditesta</i> (<i>fdt</i>) is another multiple phenotype featuring a shorter tail (not shown) and an externalised sensory vesicle (white arrow). (H) <i>fdt</i> was originally isolated in a double heterozygosity carrier of <i>fdt</i> and <i>omero</i> mutations (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0002344#pone-0002344-g001" target="_blank">Figure 1</a>) (dashed line delimits the sensory vesicle in double homozygous mutant larvae). (I) Massive cell death is observed across the body of <i>camus</i> larvae, as shown by the trunk. (J–M) Compared with wild-type larvae, some mutations display tails that are shorter than normal (L). The morphology of the notochord cells in the tails of <i>halftail</i> and <i>streveza</i> homozygous larvae suggests an impaired differentiation (K,M).