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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. 1992

C J Faust, and B Levinson, and J Gitschier, and G E Herman
Institute for Molecular Genetics, Baylor College of Medicine, Houston, Texas 77030.

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.

UI MeSH Term Description Entries
D008040 Genetic Linkage The co-inheritance of two or more non-allelic GENES due to their being located more or less closely on the same CHROMOSOME. Genetic Linkage Analysis,Linkage, Genetic,Analyses, Genetic Linkage,Analysis, Genetic Linkage,Genetic Linkage Analyses,Linkage Analyses, Genetic,Linkage Analysis, Genetic
D008297 Male Males
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D012150 Polymorphism, Restriction Fragment Length Variation occurring within a species in the presence or length of DNA fragment generated by a specific endonuclease at a specific site in the genome. Such variations are generated by mutations that create or abolish recognition sites for these enzymes or change the length of the fragment. RFLP,Restriction Fragment Length Polymorphism,RFLPs,Restriction Fragment Length Polymorphisms
D002874 Chromosome Mapping Any method used for determining the location of and relative distances between genes on a chromosome. Gene Mapping,Linkage Mapping,Genome Mapping,Chromosome Mappings,Gene Mappings,Genome Mappings,Linkage Mappings,Mapping, Chromosome,Mapping, Gene,Mapping, Genome,Mapping, Linkage,Mappings, Chromosome,Mappings, Gene,Mappings, Genome,Mappings, Linkage
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014960 X Chromosome The female sex chromosome, being the differential sex chromosome carried by half the male gametes and all female gametes in human and other male-heterogametic species. Chromosome, X,Chromosomes, X,X Chromosomes
D015139 Blotting, Southern A method (first developed by E.M. Southern) for detection of DNA that has been electrophoretically separated and immobilized by blotting on nitrocellulose or other type of paper or nylon membrane followed by hybridization with labeled NUCLEIC ACID PROBES. Southern Blotting,Blot, Southern,Southern Blot

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