Journal of Experimental Medicine, Vol 160, 827-838, Copyright © 1984 by Rockefeller University Press
A genetic map of mouse chromosome 12 composed of polymorphic DNA fragments
P D'Eustachio
Mouse chromosome 12 encodes the heavy chains of immunoglobulins (Igh), a
family of T cell surface molecules, and a tumor antigen that may be
homologous to immunoglobulins. To refine and extend the genetic map of this
chromosome, a procedure has been developed to isolate chromosome
12-specific DNA fragments from a somatic cell hybrid carrying the
chromosome on a Chinese hamster background. Five fragments have been
isolated and characterized in detail. All are polymorphic, defining loci
D12-1, 2, 3, 4, and 5. Using recombinant inbred mouse strains, a tentative
linkage map of chromosome 12 has been worked out that incorporates these
markers, the c-fos oncogene, Igh, and Pre-1/alpha 1 antitrypsin. This
strategy should be applicable to any mouse chromosome or chromosomal region
that can be isolated in a somatic cell hybrid.