Ectopic expression of <i>Abdominal-B</i> in the CySC lineage partially phenocopies loss of <i>Psc</i> and <i>Su(z)2.</i>

<p>(<b>A–B</b>): Phase images of apical tip of testis 12 days after (A;C–F’’’) forced ectopic expression of <i>Abd-B</i> in the CySC lineage (<i>C587-GAL4;UAS-Abd-B;tub-GAL80^ts</i>) and (B) control (<i>UAS-Abd-B;tub-GAL80^ts</i>). Spermatocytes marked by bracket. (<b>C–F’’’</b>): Testes immunostained with (C, C') anti-ABDB, (C, C’’, D, D’’) anti-Zfh-1, (C, C’’’) anti-Tj, (D, D') anti-Eya, (D, D’’’, E, E’’’, F, F’’’) anti-Vasa, (D, D’’’, E, E’’’, F, F’’,) anti-Fas3, (E, E’’) anti-N-Cad, and (F, F') anti-Arm, antibodies. Scale bars: 50 µm.