Table.
Ocular Phenotypes in Adult (1–10 Months Old) WT and Mutant Mice
|
Genotype |
No. Eyes Examined |
Normal Appearance |
Corectopia/Dyscoria |
Iridal Coloboma |
| C57BL/6J (WT) | 15 | 15 | 0 | 0 |
| 129Sv (WT) | 16 | 16 | 0 | 0 |
| Fbn2−/− | 101 | 20 | 44 | 37 |
| Fbn2−/−; Mfap2−/− | 27 | 2 | 9 | 16 |
| Mfap2−/− | 16 | 16 | 0 | 0 |
| Mfap5−/− | 10 | 10 | 0 | 0 |
| Mfap2−/−; Mfap5−/− | 12 | 12 | 0 | 0 |
Mice deficient in Fbn2 were prone to iris malformations including corectopia, dyscoria, and coloboma. Mice deficient in Mfap2 and Mfap5 (genes encoding microfibril-associated glycoproteins) did not exhibit ocular symptoms.