G Total cell fluorescence of β-Gal in BrdU+ cells indicate a biphasic pattern in canonical Wnt signaling strength during lineage progression [0 vs. 3dpi p<0.0001, 7 vs. 14dpi p<0.0001, 14 vs. 28dpi p<0.0001, 28 vs. 42dpi p=0.0333] (0dpi n= 194 cells, 3dpi n= 245 cells, 7dpi n= 224 cells, 14dpi n= 72 cells, 28dpi n= 103 cells and 42dpi n= 114 cells) 