a, On the left, Z-projection of confocal images showing the GFP
fluorescence of the egl-5 GFP HOX reporter
(bxIs13) under Control (mock/L4440) RNAi,
lsm-7 and mes-2 (EZH2 homolog) RNAi
conditions, in adult males. On the right, merged images of the Z projection of
the GFP signal with the DIC image at the best focal plan to visualize the rays
of the male tail. Bar, 50 μm. b, Quantification of the
number of expressing egl-5 GFP nuclei/cells under the indicated
RNAi conditions per proximal region of worms. P values indicated; two-tailed
unpaired t test. Bars represent mean value derived from three independent
experiments, with each experimental value shown as a dot. The three experiments
examined 18, 19 and 17 worms in total for RNAi conditions indicated from left to
right. c, Enlarged male tail inset as in (a) showing the 9 normal
rays by arrows and an example of 2 ectopic abnormal rays in
mes-2 (asterisks). d,
egl-5 GFP derepression is observable mostly in male tail
region, as in (a) but a few nuclei (0 up to 4, as shown by the arrowheads) could
also exhibit this derepression in other regions of the worm in
lsm-7 and mes-2 RNAi conditions. The
nucleus indicated by an asterisk express egl-5 GFP in all
conditions tested. Bar, 50 μm. Data shown in a, c, and d represent
results from 3 independent experiments. Statistical source data are provided in
Source Data fig.
5.