| Type | MGI:General | Description | myocardium of atrial and ventricular wall display perforations resulting in continuity between the subendocardial and subepicardial layers abnormal myocardial architecture is present in animals at E14.5 and some mutants display partial epicardial dissociation at E14.5 and E15.5, mutants with normal epicardial morphology still show decreased myocardial volume |
