Table 1. Fly List.

Fly line	Description
DE-CadherinGFP	DE-Cadherin fused with GFP under control of ubiquitin promoter on 2nd chromosome; homozygous viable 52]; transmembrane protein
SpiderGFP	FlyTrap line: gish fused with GFP under endogenous promoter on 3rd chromosome; homozygous viable 53]; palmitoylated protein
LachesinGFP	Protein trap line: lachesin fused with GFP under endogenous promoter on 2nd chromosome; homozygous viable (kindly provided by the Klämbt Protein trap consortium); GPI-linked protein
Casper-Sas-Venus	Stranded at Second fused with Venus under tubulin promoter on 3rd chromosome; homozygous viable (this study); transmembrane protein
UAS Sas-Venus	Stranded at Second fused with Venus under UAS control region on 3rd chromosome; homozygous viable (this study); transmembrane protein
daGAL4	daughterlessGAL4 - ubiquitous and strong driver line for expression of UAS constructs on 3rd chromosome; homozygous viable 24,54]
crb11A22 SpiderGFP/TTG	SpiderGFP recombined with crb11A22 with TTG balancer (TM3, P{GAL4-twi.G}2.3, P{UAS-2xEGFP}AH2.3, Sb1 Ser1) (this study)
crb11A22 Casper-SAS-Venus/TTG	pCasper SAS-Venus 1 recombined with crb11A22 over TTG balancer (TM3, P{GAL4-twi.G}2.3, P{UAS-2xEGFP}AH2.3, Sb1 Ser1) (this study)