Heart phenotypes in embryos mutant for <i>mirr</i>.

<p>(A, B) <i>mirr</i> mutants have a reduced number of Eve clusters (arrows). (C, D) The number of Odd-expressing pericardial cells is increased in <i>mirr</i> mutants (arrowheads). (E, F) <i>mirr</i> mutants are characterized by an increased number of Tin-positive cells (arrowheads). (G, H) Myocardial Dmef2-expressing cells are slightly reduced in <i>mirr</i> mutants (arrows). Quantification of the phenotypes is included in the bar graphs shown in Figure 6 Q-T.