Location of theSas-1 locus on mouse chromosome 1

Abstract
Using three sets of recombinant inbred strains (BXD, BXH, and BXJ), we found the locus controlling an antigenic substance (Sas}-1) in murine serum to be closely linked to the Chromosome-1 marker,Dip-1. This linkage was confirmed by an analysis of backcross linkage. The BXD and backcross data suggest that the gene order isId-1-Dip-1-Sas-1-Mls. Data from the three sets of RI strains and the 32 backcross mice lead to the estimate that the recombination frequency betweenDip-1 andSas-1 is 0.030 ±0.015.