Assignment of Tp53 and Tk1 to chromosome 13 in Peromyscus by fluorescence in situ hybridization

Mus domesticus DNA probes for the tumor suppressor protein-53 (Tp53) and thymidine kinase-1 (Tk1) genetic loci were used to identify clones representing these loci in a Peromyscus leucopus (white-footed mouse) cosmid library. The cosmid-derived homologous probes were biotinylated and hybridized to P. maniculatus (deer mouse) chromosomes. Probes for both genes hybridized to the chromosome 13 pair identified by prior G-banding. Deer mouse chromosome 13 shares a region of homology with mouse chromosome 11, rat chromosome 10 and human chromosome 17.