Molecular and genetic mapping of the mouse mdx locus.
Cavanna JS., Coulton G., Morgan JE., Brockdorff N., Forrest SM., Davies KE., Brown SD.
mdx is an X-linked muscular dystrophy mutant of the mouse and a putative homolog of the human X-linked muscular dystrophy locus--Duchenne muscular dystrophy (DMD). Utilizing a C57BL/10/Mus Spretus interspecific cross in which the mdx mutation was segregating, we have constructed a detailed genetic map around the mdx locus on the mouse X chromosome. We were unable to detect recombinants between mdx and exonic probes derived from the human DMD gene. These genetic data support the contention from biochemical studies (E.P. Hoffman, R. H. Brown, and L. M. Kunkel, 1987, Cell 51: 919-928) that DMD and mdx are homologous genes.