OMIA 000881-9685 : Rod-cone dysplasia in Felis catus

In other species: dog

Possibly relevant human trait(s) and/or gene(s)s (MIM numbers): 613829 (trait) , 602225 (gene)

Mendelian trait/disorder: yes

Mode of inheritance: Autosomal Dominant

Considered a defect: yes

Key variant known: yes

Year key variant first reported: 2010

Species-specific symbol: Rdy

Molecular basis: Menotti-Raymond et al. (2010) provided convincing evidence that this form of retinopathy, so long studied, is the result of a frameshift mutation due to a single base deletion in the cone-rod homeobox-containing gene (CRX).

Pathology: Occelli et al. (2016) provided a comprehensive description of the pathogenesis of the disorder resulting from the frameshift variant.

Breed: Abyssinian.

Associated gene:

Symbol Description Species Chr Location OMIA gene details page Other Links
CRX cone-rod homeobox Felis catus E2 NC_058382.1 (9501906..9490608) CRX Homologene, Ensembl, NCBI gene


By default, variants are sorted chronologically by year of publication, to provide a historical perspective. Readers can re-sort on any column by clicking on the column header. Click it again to sort in a descending order. To create a multiple-field sort, hold down Shift while clicking on the second, third etc relevant column headers.

WARNING! Inclusion of a variant in this table does not automatically mean that it should be used for DNA testing. Anyone contemplating the use of any of these variants for DNA testing should examine critically the relevant evidence (especially in breeds other than the breed in which the variant was first described). If it is decided to proceed, the location and orientation of the variant sequence should be checked very carefully.

Since October 2021, OMIA includes a semiautomated lift-over pipeline to facilitate updates of genomic positions to a recent reference genome position. These changes to genomic positions are not always reflected in the ‘acknowledgements’ or ‘verbal description’ fields in this table.

OMIA Variant ID Breed(s) Variant Phenotype Gene Allele Type of Variant Source of Genetic Variant Reference Sequence Chr. g. or m. c. or n. p. Verbal Description EVA ID Inferred EVA rsID Year Published PubMed ID(s) Acknowledgements
916 Abyssinian Rod-cone dysplasia CRX Rdy deletion, small (<=20) Naturally occurring variant F.catus_Fca126_mat1.0 E2 g.9492897del c.546del p.(P185Lfs*2) XM_045045412.1; XP_044901347.1; published as CRX: n.546delC; in the Felis_catus_9.0 assembly the CRX gene is duplicated and genomic coordinates in this table are given for a more recent reference genome 2010 20053974


Note: the references are listed in reverse chronological order (from the most recent year to the earliest year), and alphabetically by first author within a year.
2021 Occelli, L.M., Marinho, F., Singh, R.K., Binette, F., Nasonkin, I.O., Petersen-Jones, S.M. :
Subretinal transplantation of human embryonic stem cell-derived retinal tissue in a feline large animal model. J Vis Exp :, 2021. Pubmed reference: 34424232. DOI: 10.3791/61683.
2016 Occelli, L.M., Tran, N.M., Narfström, K., Chen, S., Petersen-Jones, S.M. :
CrxRdy cat: A large animal model for CRX-associated leber congenital amaurosis. Invest Ophthalmol Vis Sci 57:3780-92, 2016. Pubmed reference: 27427859. DOI: 10.1167/iovs.16-19444.
2011 Narfström, K., Holland Deckman, K., Menotti-Raymond, M. :
The domestic cat as a large animal model for characterization of disease and therapeutic intervention in hereditary retinal blindness. J Ophthalmol 2011:906943, 2011. Pubmed reference: 21584261. DOI: 10.1155/2011/906943.
Narfström, K., Menotti Raymond, M., Seeliger, M. :
Characterization of feline hereditary retinal dystrophies using clinical, functional, structural and molecular genetic studies. Vet Ophthalmol 14 Suppl 1:30-6, 2011. Pubmed reference: 21923821. DOI: 10.1111/j.1463-5224.2011.00915.x.
2010 Menotti-Raymond, M., Deckman, KH., David, VA., Myrkalo, J., O'Brien, SJ., Narfstrom, K. :
Mutation discovered in a feline model of human congenital retinal blinding disease. Invest Ophthalmol Vis Sci 51:2852-2859, 2010. Pubmed reference: 20053974. DOI: 10.1167/iovs.09-4261.
2002 Gould, D.J., Sargan, D.R. :
Autosomal dominant retinal dystrophy (Rdy) in Abyssinian cats: exclusion of PDE6G and ROM1 and likely exclusion of Rhodopsin as candidate genes Animal Genetics 33:436-440, 2002. Pubmed reference: 12464018.
1999 Chong, N.H.V., Alexander, R.A., Barnett, K.C., Bird, A.C., Luthert, P.J. :
An immunohistochemical study of an autosomal dominant feline rod/cone dysplasia (Rdy cats) Experimental Eye Research 68:51-57, 1999. Pubmed reference: 9986741. DOI: 10.1006/exer.1998.0580.
1993 Gorin, M.B., Snyder, S., To, A., Narfstrom, K., Curtis, R. :
The Cat RDS Transcript - Candidate Gene Analysis and Phylogenetic Sequence Analysis Mammalian Genome 4:544-548, 1993. Pubmed reference: 8118105.
Narfstrom, K., Ivert, L., Yamamoto, S., Gouras, P. :
Adaptation of Rod and Cone Electroretinograms in the Abyssinian Cat Hereditary Rod-Cone Degeneration Clinical Vision Sciences 8:177-185, 1993.
1991 Anderson, R.E., Maude, M.B., Nilsson, S.E., Narfstrom, K. :
Plasma Lipid Abnormalities in the Abyssinian Cat with a Hereditary Rod-Cone Degeneration Experimental Eye Research 53:415-417, 1991. Pubmed reference: 1936178.
Holmes, N.G., Curtis, R. :
Changes in a Photoreceptor Polypeptide Correlating with an Early-Onset Retinal Dystrophy in the Cat Molecular and Cellular Biochemistry 107:111-117, 1991. Pubmed reference: 1791824.
Leon, A., Hussain, A.A., Curtis, R. :
Autosomal Dominant Rod Cone Dysplasia in the Rdy Cat .2. Electrophysiological Findings Experimental Eye Research 53:489-502, 1991. Pubmed reference: 1936184.
1990 Leon, A., Curtis, R. :
Autosomal Dominant Rod Cone Dysplasia in the Rdy Cat .1. Light and Electron Microscopic Findings Experimental Eye Research 51:361-381, 1990. Pubmed reference: 2209749.
1987 Curtis, R., Barnett, K.C., Leon, A. :
An early-onset retinal dystrophy with dominant inheritance in the Abyssinian cat. Clinical and pathological findings Investigative Ophthalmology and Visual Science 28:131-139, 1987. Pubmed reference: 3804643.
1985 Barnett, KC., Curtis, R. :
Autosomal dominant progressive retinal atrophy in Abyssinian cats. J Hered 76:168-70, 1985. Pubmed reference: 3998438.

Edit History

  • Created by Frank Nicholas on 08 Apr 2010
  • Changed by Frank Nicholas on 30 Sep 2011
  • Changed by Frank Nicholas on 09 Dec 2011
  • Changed by Frank Nicholas on 22 Mar 2019
  • Changed by Imke Tammen2 on 26 Aug 2021
  • Changed by Imke Tammen2 on 17 Sep 2022