Phenotypes of sqt-/-, cyc-/-,sqt-/-; cyc+/- and sqt-/-;cyc-/- mutants
| Parental genotype . | Mutant genotype . | Total number of mutants . | Number with normal shields at 6 h . | Number with two eyes at 1 d . | Number with swim bladder at 5 d . | Number with fused somites at 12 h . | Number with Kupffer's vesicle at 12 h . |
|---|---|---|---|---|---|---|---|
| cyc+/- | cyc-/- | 32 | 32 | 0 | 0 | nd | nd |
| sqt+/- | sqt-/- | 24 | 0 | 22 | 18 | nd | nd |
| sqt+/-;cyc+/- | sqt+/+; cyc-/- or sqt+/-;cyc-/- | 18 | 18 | 0 | 0 | nd | nd |
| sqt-/-; cyc+/+ | 9 | 0 | 9 | 8 | nd | nd | |
| sqt-/-; cyc+/- | 10 | 0 | 1 | 1 | nd | nd | |
| sqt-/-; cyc-/- | 7 | 0 | 0 | nd | nd | nd | |
| sqt+/-; cyc+/- × sqt+/-;cyc+/+ | sqt-/-; cyc+/+ | 12 | nd | nd | nd | 3 | 0 |
| sqt-/-; cyc+/- | 11 | nd | nd | nd | 7 | 0 |
| Parental genotype . | Mutant genotype . | Total number of mutants . | Number with normal shields at 6 h . | Number with two eyes at 1 d . | Number with swim bladder at 5 d . | Number with fused somites at 12 h . | Number with Kupffer's vesicle at 12 h . |
|---|---|---|---|---|---|---|---|
| cyc+/- | cyc-/- | 32 | 32 | 0 | 0 | nd | nd |
| sqt+/- | sqt-/- | 24 | 0 | 22 | 18 | nd | nd |
| sqt+/-;cyc+/- | sqt+/+; cyc-/- or sqt+/-;cyc-/- | 18 | 18 | 0 | 0 | nd | nd |
| sqt-/-; cyc+/+ | 9 | 0 | 9 | 8 | nd | nd | |
| sqt-/-; cyc+/- | 10 | 0 | 1 | 1 | nd | nd | |
| sqt-/-; cyc-/- | 7 | 0 | 0 | nd | nd | nd | |
| sqt+/-; cyc+/- × sqt+/-;cyc+/+ | sqt-/-; cyc+/+ | 12 | nd | nd | nd | 3 | 0 |
| sqt-/-; cyc+/- | 11 | nd | nd | nd | 7 | 0 |
nd, not determined; h, hours post-fertilization; d, days post-fertilization.