Figure 4.
Pedigree of horses affected with Rocky Mountain horse eye anomaly in Canada. Note that cysts were detected in the F1 crossbred generation sired by a Rocky Mountain stallion with cysts (all but 2 dams were gaited breeds). Note also that the F2 generation failed to express ciliary cysts, expressed ciliary cysts alone, expressed ciliary cysts and multiple ocular anomali es, when sired by either a Rocky Mountain stallion with ciliary cysts or a Rocky Mountain stallion with ciliary cysts and multiple ocular anomalies.