Confocal analysis of Pygo2 wild-type, heterozygous, and null E18.5 kidneys on the Pygo1 null background.
Genotype  Ureteric tip  Condensing mesenchyme
Ureteric tips/mm2  SD   n  Mesenchyme condensate size (μm)  SD   n
Pygo2 +/+  196  8.36  3  16.2  1.09  3
Pygo2 +/-  191  11.6  7  15.6  1.18  5
Pygo2 -/-  147*  12.2  7  20.9 *  1.12  5
*Significant change (P < 0.01) between the three groups.
SD, Standard deviation; n, number Confocal analysis also