<i>chm</i> genetically interacts with <i>pnr</i> during DC and SC macrochaete development.

<p>Bristle scoring was compared using Student's <i>t</i> test.</p>*<p>, statistically different compared to <i>chm</i> null flies, <i>P</i><0.05.</p><p>N, number of thoraces examined. DC: dorsocentral bristles, SC: scutellar bristles.</p>