TABLE 1.
Overview of the screen
| Tested mutant lines | 1123 |
| Lines with larvae displaying no MARCM clones | 122 (11%) |
| Lines with air sacs displaying no MARCM clones | 90 (8%) |
| Lines showing no tracheal cell migration and proliferation phenotype | 864 (77%) |
| Lines showing a tracheal cell migration phenotype (class I) | 38 |
| Class I lethal lines | 34 |
| Class I not lethal lines | 4 |
| Lines showing a tracheal cell proliferation phenotype (class II) | 9 |
| Class II lethal lines | 8 |
| Class II not lethal lines | 1 |
A total of 1123 lines were tested. Numbers refer to the amount of lines for which F3 third instar larvae displayed a given phenotype after heat-shock treatment and induction of MARCM clones. Percentage values shown in parentheses refer to the total number of strains that were tested. Lines displaying a tracheal cell migration phenotype were classified in two categories: class I (strict migration phenotype) and class II (migration and proliferation phenotype). In both categories, lethal and viable alleles were recovered.