Mapping of the mouse Ly-6, Xp-14, and Gdc-1 loci to chromosome 15.
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.[1]References
- Mapping of the mouse Ly-6, Xp-14, and Gdc-1 loci to chromosome 15. Hogarth, P.M., McKenzie, I.F., Sutton, V.R., Curnow, K.M., Lee, B.K., Eicher, E.M. Immunogenetics (1987) [Pubmed]
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