Location of histocompatibility and interferon loci on chromosome 3 of the mouse

Two histocompatibility loci, H-23 and H-28, and an interferon locus, If-1, are shown linked to matted, ma, and varitint-waddler, Va, on chromosome 3 of the mouse. The gene order (from centromere) with intervening percent recombination is: ma-19.1(+/- 4.9)-H-23-12.0(+/- 4.0)-VaJ-7.7(+/- 2.2)-H-28-5.9(+/- 2.2)-If-1.