RNAi for <i>rbpl-1</i> causes defects of germ cell proliferation. a.

<p>The posterior end of the germline showing the mitotic and transition zones. Nuclei are labeled by H2B::GFP. Scale bar: 10 µm. <b>b.</b> Fewer mitotic cells are observed in <i>rbpl-1</i> RNAi worms than in control worms by immunofluorescence. The arrow indicates mitotic cells labeled with anti-P-H3S10. Scale bar: 10 µm. <b>c.</b> The mitotic index in <i>rbpl-1</i> RNAi worms is much lower than in control worms. Mitotic index: the number of cells in mitotic stage (staining by anti-P-H3S10) divided by the total cell number in mitotic zone (staining by DAPI).