Extension of the physical map in the region of the mouse X chromosome homologous to human Xq28 and identification of an exception to conserved linkage
Copyright policy )Extension of the physical map in the region of the mouse X chromosome homologous to human Xq28 and identification of an exception to conserved linkage
We have extended our pulsed-field gel map of the region of the mouse X chromosome homologous to human Xq28 to include the loci Gdx (DXS254Eh), P3 (DXS253Eh), G6pd, Cf-8, and F8a. Gdx, P3, and G6pd are demonstrated to be physically linked to the X-linked visual pigment locus (Rsvp) within a maximal distance of 340 kb, while G6pd and Cf-8 are approximately 900 kb apart. These studies favor a gene order of cen-Rsvp-Gdx-P3-G6pd-(Cf-8)-tel and extend the physical map of this region to 5 million bp. In conjunction with previous physical mapping studies in both mouse and human, the results suggest conserved linkage for loci in this region of the mouse X chromosome and human Xq28. However, employing pulsed-field gel electrophoresis and genetic pedigree analysis of interspecific backcross progeny, we have found close linkage of a clone encoding a mouse homolog for human factor VIII-associated gene A (F8A) to DXPas8, thus revealing the first exception to conserved gene order between murine and human loci in the region.
- Baylor College of Medicine United States
- Howard Hughes Medical Institute United States
- University of California, San Francisco United States
Male, X Chromosome, Genetic Linkage, Chromosome Mapping, Electrophoresis, Gel, Pulsed-Field, Mice, Inbred C57BL, Blotting, Southern, Mice, Animals, Humans, Female, DNA Probes, Polymorphism, Restriction Fragment Length
Male, X Chromosome, Genetic Linkage, Chromosome Mapping, Electrophoresis, Gel, Pulsed-Field, Mice, Inbred C57BL, Blotting, Southern, Mice, Animals, Humans, Female, DNA Probes, Polymorphism, Restriction Fragment Length
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