Robuta

https://pubmed.ncbi.nlm.nih.gov/7512509/ Decreased opsin mRNA and immunoreactivity in progressive rod-cone degeneration (prcd): cytochemical... Opsin mRNA level and immunoreactivity were examined by in situ hybridization and immunocytochemistry in normal and progressive rod cone degeneration... https://www.pcs.agriculture.gov.ie/ PRCD - Home