TABLE 1.

Frequency of ectopic innervation or pathfinding errors in the SNb nerve branch onto muscles 12 and 13 in larvae overexpressing Comm or its mutants^a

Genotype	n	Frequency of abnormal innervation (%)
UAS-comm [2PY→AY]/24B-GAL4	83	42.2b
UAS-comm [10K→R]/24B-GAL4	88	35.2b
UAS-comm+/24B-GAL4 (control 1)	65	20.0c
+/24B-GAL4 (control 2)	76	3.9
UAS-comm [(2PY→AY)-monoUb]/24B-GAL4	97	19.6
UAS-comm [(10K→R)-monoUb]/24B-GAL4	86	23.3
commLOF/+	108	26.9
UAS-comm10K→R/5-GAL4; commΔe39/+	72	47.2

^aThe following P values were determined by Fisher's exact test (two-tailed): 2PY→AY versus WT Comm (control 1), P < = 0.0048; 10K→R versus WT Comm (control 1), P < = 0.0475; 2PY→AY versus +/24B-GAL4 (control 2), P < = 0.0001; 10K→R versus +/24B-GAL4 (control 2), P < = 0.0001; WT Comm (control 1) versus +/24B-GAL4 (control 2), P < = 0.0032; 10K→R-monoUb versus 24B-GAL4 (control 2), P < = 0.0005; 2PY→AY-monoUb versus 24B-GAL4 (control 2), P < = 0.0041; 10K→R-monoUb versus Comm WT (control 1), P < = 0.84; 2PY→AY-monoUb versus Comm WT (control 1), P < = 0.6938; 10K→R in comm heterozygote background versus comm heterozygote, P < = 0.0066; 10K→R in comm heterozygote background versus 10K→R in WT background, P < = 0.1464.

^bSignificance was at the P = 0.05 level with respect to the +/24B-GAL4 and UAS-comm⁺/24B-GAL4 controls.

^cSignificance was at the P = 0.05 level with respect to the +/24B-GAL4 control.