Table 2.

Phenotypic characteristics of heteroallelic dlg combinations

Strength	Follicle cells invadea	Follicle cells do not invade
weakb	sw/m35, sw/hf321
intermediatec	1P20/hf321, v59/hf321	1P20/m35, lv55/m35,v59/m35
strongd	X12/hf321, lv55/hf321	sw/sw, 1P20/sw, v59/sw, lv55/sw, X12/sw, m52/sw
lethale	hf321/m52, 1P20/m52, lv55/m52, v59/m52, X12/m52, m35/m52, lv55/v59, 1P20/v59, X12/v59, 1P20/lv55, X12/lv55, 1P20/X12, m35/X12, hf321/m35

The phenotypes associated with the homozygous mutants is given in Table 1. 

^aInvasive vs. noninvasive phenotypes are described and pictured in the text. 

^bBCs leave prematurely at s8, or move prematurely at s9. Since BCs are determined at s8 and migrate between germ cells at s9, the designation of “Follicle cells invade” or “Follicle cells do not invade” is not meaningful. 

^cFollicle cells accumulate at the poles and/or invade typically starting no earlier than s5. 

^dFollicle cells accumulate at the poles and/or invade starting at least as early as s3, and for most allele combinations, the earliest time that a mutant phenotype was observed is s1. 

^ePhenotypic analysis not possible because the mutant combinations are lethal at both 18°C and 25°C.