Light microscopy shows retinal waves, whorls and rosettes that increase and decrease concordant with retinal spots and later on-set photoreceptor degeneration. A 380-nt deletion from the coding region of a photoreceptor-specific nuclear receptor gene,Pnr, causes retinal abnormalities in rd7 mice.
Gene | Mouse Chromosome | Human Chromosome | Retinal ONL disappear by | Strains |
|---|---|---|---|---|
rd7 | 9 | 15q23 | 30 | 77-2C2a-special; C57BL/6J- rd7 |