Chromosome 9 and progressive rod-cone degeneration disease genetic markers and assays

摘要

Provided are nucleic acid molecules which comprise at least a portion of a polymorphic genetic marker for determining whether a canine has a mutated progressive rod-cone degeneration disease (prcd) gene locus in one or both alleles. The genetic markers are located on canine chromosome 9 in a genomic region identified as the prcd-informative region. A method for making genetic markers representing polymorphic sequences located in the prcd-informative region of canine chromosome 9 comprises isolating a polymorphic DNA sequence in the prcd-informative region, using oligonucleotides complementary with at least a portion of the sequence to amplify the sequence, and analyzing canine chromosome 9 in a prcd-informative pedigree for the ability of the polymorphic sequence to co-segregate with the prcd gene locus by a linkage test. The presence of a mutated prcd gene locus in one or both alleles of a canine in a pedigree is detected by analyzing canine chromosome 9 in the canine for the presence of at least one polymorphic genetic marker, which co-segregates with the prcd gene locus, by a linkage analysis.