Table 3. Deficiencies with zipping/canthus phenotypes (33 total).

Zipping/Canthus Phenotype	Number of Dfs	Screen Name Df(2L)n
Scarring from zipping	14	10, 17, 25, 27, 28, 29, 43, 48, 51, 55, 63, 64, 68, 99A
Cigar shaped opening	10	01, 09, 10, 12, 19, 24, 25, 38, 51, 97
Missing/malformed canthus	14	03, 22, 23, 25, 27, 37, 54, 63, 64, 72, 84, 94, 97, 100
Exacerbated asymmetric zipping	4	08, 17, 52, 92

Listed are the four classes of zipping and canthus phenotypes which were observed in embryos homozygous for 2L Dfs, the number of Dfs that caused the phenotypes and the Dfs that caused them. Dfs are denoted by chromosomal position (see Material and Methods) – the corresponding Bloomington stock numbers and the FlyBase nomenclature can be found in Appendix A. Some Dfs cause phenotypes in more than one category. The superscript A for Df(2L)99^A indicates that this Df was added to the study to provide further coverage of the genomic region removed by Df(2L)99 which could not be imaged at the time of dorsal closure due to tissue failure earlier in development.