Progressive retinal atrophy rod-cone degeneration 4 (rcd4-PRA) is a heritable condition characterized by late-onset degeneration of photoreceptor cells in the retina, leading to loss of vision and blindness.
Congenital ichthyosis is a skin condition in which the outer layer of the skin does not form properly and results in scaling. The condition often progresses to large patches of thickened, black, scaly skin. Two genetic variants have been associated with congenital ichthyosis in the Golden Retriever.
The extent of shedding is impacted by several genes but two, MC5R and RSPO2, appear to have significant effect on the relative degree of shedding. Combinations of variants identified in these two genes result in decreased overall shedding rates.
Lhasa Apso Albinism (LAA) is an oculocutaneous albinism that is characterized by white or off-white fur and pink skin, and is caused by a missense variant in the SLC45A2 gene. This variant is also responsible for French Bulldog Pink.