PDE6B and retinitis pigmentosa 1: Subretinal transplantation of day 11-24 ESC and iPSC-derived retinal sheets into rd1 mice, which have lost all photoreceptors through rapidly progressive RP, led to formation of photoreceptors with outer segments and signs of host-graft synaptic connections (Assawachananont et al., 2014; Mandai et al., 2017).