Segregation of wly and six DNA markers on mouse Chr 11 among 1,679 backcross progeny. Microsatellite markers typed are shown to the left of the diagram. The haplotype depicted is that transmitted by the heterozygous F1 dam. Open boxes indicate A/J-derived alleles; filled boxes indicate NOD/ShiLtJ-wly/J-derived alleles. The number of progeny that inherited each haplotype is shown below it. The percentage recombination in each marker interval is shown to the right (± 1 standard error). Red crosses represent crossovers in the interval between D11Mit208 and D11Mit242, a span that includes wly (since wly must lie telomeric to the 11 crossovers marked with an asterisk, and centromeric of the 19 crossovers marked with a dagger). Marker D11Mit260 (shown in green) did not recombine with wly in the backcross panel.