Table E1:

Comparisons of morphology across genotype and branch order/annulus in eGFP

	Genotype	Branch order / Annulus	Interaction effect
Apical total length	F(2,13) = 3.216, p = 0.073	F(6,78) = 10.919, p < 0.001*	F(12,78) = 0.380, p = 0.967
Apical number of branches	F(2,13) = 0.092, p = 0.912	F(2.132,27.721) = 32.525, p < 0.001*	F(4.265,27.721) = 0.208, p = 0.939
Apical average length	F(2,13) = 4.394, p = 0.035*	F(3.209,41.713) = 0.424, p = 0.869	F(6.417,41.713) = 0.424, p = 0.869
Apical tortuosity	F(2,13) = 0.187, p = 0.832	F(6,78) = 10.312, p < 0.001*	F(12,78) = 1.663, p = 0.092
Apical length (Sholl)	F(2,13) = 4.378, p = 0.035*	F(2.650,34.448) = 42.238, p < 0.001*	F(5.300,34.448) = 1.544, p = 0.199
Apical branch intersections (Sholl)	F(2,13) = 7.175, p = 0.008*	F(2.528,32.866) = 61.115, p < 0.001*	F(5.056,32.866) = 2.632, p = 0.041*
Basal total length	F(2,13) = 3.963, p = 0.045*	F(1.428,18.570) = 20.172, p < 0.001*	F(2.857,18.570) = 3.671, p = 0.033*
Basal number of branches	F(2,13) = 1.178, p = 0.339	F(1.608,20.899) = 46.669, p < 0.001*	F(3.215,20.899) = 1.509, p = 0.240
Basal average length	F(2,13) = 3.694, p = 0.054	F(3,39) = 20.524, p < 0.001*	F(6,39) = 2.066, p = 0.080
Basal tortuosity	F(2,13) = 0.736, p = 0.498	F(3,36) = 0.155, p = 0.926	F(3,36) = 0.523, p = 0.848
Basal length (Sholl)	F(2,13) = 3.094, p = 0.080	F(2.060,26.777) = 151.170, p < 0.001*	F(4.120, 26.777) = 1.860, p = 0.145
Basal branch intersections (Sholl)	F(2,13) = 3.084, p = 0.080	F(2.010,26.124) = 141.717, p < 0.001*	F(4.019,26.124) = 1.989, p = 0.125