Figure 8: Ultraviolet cone transmission regulates blue cone synapse number.

(a–l) Examples of H3 HCs and their connectivity maps in the background of Tg(sws1:TeNT; sws2:mCherry) (a–d), Tg(sws1:GFP; sws2:TeNT) (e–h), or Tg(sws1:TeNT; sws2:TeNT; sws2:mCherry) (i–l). Side views of rectangular regions outlined in (a,e,i) are shown in (c,d,g,h,k,l). Arrowheads indicate blue cone synapses. Scale bars, 5 μm. (m–o) Comparison of mean measurements across conditions. See Methods for details of analysis. Control (wildtype) animals (ctr). Each open circle represents one H3 HC. Error bars are s.e.m. P-values from Wilcoxon–Mann–Whitney rank sum test.