title: The rat pink-eyed dilution (p) mutation: an identical intragenic deletion in pink-eye dilute-coat strains and several Wistar-derived albino strains.
abstract: We identified the rat pink-eyed dilution (p) and pink eye Mishima (p(m)) mutations. The p(m) mutation, which was isolated from a wild rat caught in Mishima Japan in 1961 and is carried in the NIG-III strain, is a splice donor site mutation in intron 5. The p mutation, which was first described in 1914 and is carried in several p/p rats including the RCS and BDV strains, is an intragenic deletion including exons 17 and 18. In addition to RCS and BDV strains, several albino strains, KHR, KMI and WNA, all descendants of albino stock of the Wistar Institute, are homozygous for the p allele. Analyses revealed that the colored p strains and the Wistar-derived albino p strains had the same marker haplotype spanning approximately 4 Mb around the P locus. This indicates that these p strains share a common ancestor and the p allele did not arise independently via recurrent mutations. The historical relationship among the p strains suggests that the p deletion had been maintained in stock heterogeneous for the C and P loci and then was inherited independently by the ancestor of the Wistar albino stock and the ancestor of the pink-eyed agouti rats in Europe.
authors.affiliation: Institute of Laboratory Animals, Graduate School of Medicine, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto 606-8501, Japan. tkuramot@anim.med.kyoto-u.ac.jp
authors.forename: Takashi
authors.initials: T
authors.lastname: Kuramoto
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Gohma
authors.forename: Kunio
authors.initials: K
authors.lastname: Kimura
authors.forename: Dirk
authors.initials: D
authors.lastname: Wedekind
authors.forename: Hans J
authors.initials: HJ
authors.lastname: Hedrich
authors.forename: Tadao
authors.initials: T
authors.lastname: Serikawa
mesh_terms: D000417:Albinism / Q000235:genetics*; D000818:Animals; D001483:Base Sequence; D017931:DNA Primers; D040461:Gene Components; D017353:Gene Deletion; D006239:Haplotypes / Q000235:genetics; D007564:Japan; D026901:Membrane Transport Proteins / Q000235:genetics*; D018895:Microsatellite Repeats / Q000235:genetics; D008969:Molecular Sequence Data; D051381:Rats; D017208:Rats, Wistar; D020133:Reverse Transcriptase Polymerase Chain Reaction; D017422:Sequence Analysis, DNA
chemical_list: D017931:DNA Primers; D026901:Membrane Transport Proteins; C509556:pink-eye dilution protein, rat