Expression patterns of <i>suffix</i> and F elements in <i>Drosophila</i> testis.

<p><i>In situ</i> hybridizations with DIG-labeled, strand-specific RNA probes were performed (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0000476#s4" target="_blank">Materials Methods</a>). (A, B) The patterns revealed by <i>suffix</i> sense and antisense probes, respectively. (C, D) The patterns revealed by F element sense and antisense probes, respectively. Arrows indicate the transcripts detected in primary spermatocytes.</p>