title: Mapping of the mouse Ly-6, Xp-14, and Gdc-1 loci to chromosome 15.
abstract: The Ly-6 locus is now regarded as a gene complex consisting of at least five closely linked loci (Ly-6A-Ly-6E) whose polymorphic products are identified by monoclonal antibodies and distinguished by different tissue distributions. Ly-6 has been assigned by other investigators to chromosome (Chr) 9 (linked to Thy-1) or to Chr 2. We report that the Ly-6 gene complex, together with the Xp-14 and Gdc-1 loci, is situated on Chr 15 linked to Gpt-1. These new linkage data are derived from four sources: (1) three separate crosses that failed to demonstrate linkage of Ly-6 to either Thy-1 on Chr 9 or to any of five genes present on Chr 2; (2) the NXSM recombinant inbred strains, which suggested the linkage of Ly-6 and Xp-14 to Gpt-1 on Chr 15; (3) several Gpt-1 and Gdc-1 congenic strains that confirmed the assignment of Ly-6 and Xp-14 to Chr 15; and (4) backcrosses that further confirmed the linkage of Ly-6, Gpt-1, Gdc-1, and Xp-14, the probable gene order being Gpt-1/Ly-6-Xp-14-Gdc-1.
mesh_terms: D000410:Alanine Transaminase / Q000235:genetics; D000818:Animals; D000950:Antigens, Ly / Q000235:genetics*; D002874:Chromosome Mapping; D003433:Crosses, Genetic; D008040:Genetic Linkage; D005819:Genetic Markers; D005993:Glycerolphosphate Dehydrogenase / Q000235:genetics*; D051379:Mice / Q000235:genetics*; D008815:Mice, Inbred Strains / Q000235:genetics; D012150:Polymorphism, Restriction Fragment Length
chemical_list: D000950:Antigens, Ly; D005819:Genetic Markers; D005993:Glycerolphosphate Dehydrogenase; D000410:Alanine Transaminase