Table 1.
Impaired viability of ephrin-B1-deficient animals
| ♂ ephrin-B1Y/lox; Meox2Cre/+
|
♀ ephrin-B1+/lox; Meox2Cre/+
|
|||||
|---|---|---|---|---|---|---|
| Expected | Recovered | % | Expected | Recovered | % | |
| Mixed background | 13.75 | 8 | 58 | 13.75 | 1 | 7.2 |
| 129 background | 10.3 | 2 | 19.4 | 10.3 | 2 | 19.4 |
Number of mutants recovered from crosses between conditional ephrin-B1 animals and animals carrying one copy of the Cre recombinase expressed under the control of the Meox2 promoter (ephrin-B1lox/+; Meox2+/+ × ephrin-B1Y/+; Meox2Cre/+). % indicates viability of ephrin-B1 deficient animals.