Percentage of stem cells in different mitotic phases and the percentage of defective mitotic figures in 72hR anterior blastemas of cct3A RNAi and controls in starved conditions after double immunostaining with anti-tyrosine-tubulin and anti-H3P (****P < 0.0001, ***P < 0.001, *P < 0.05 using two-sided Chi-square test; the number of cells analyzed is displayed in Appendix Fig S2B); n ≥ 5 planarians. Representative images are shown. Nuclei are stained with DAPI. Arrows indicate abnormal organization or number of spindle poles and the yellow arrowhead indicates chromosome lagging. Asymmetrical karyokinesis is observed in b11 and b12. 