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Confidence limits for estimates of gene linkage based on analysis of recombinant inbred strains.

Recombinant inbred (RI) strains are extremely useful for genetic mapping. This paper presents a simple method for determining confidence intervals for linkage estimates based on analysis of RI strains. The results show that such confidence intervals are usually large with the currently available numbers of RI strains. Therefore, map positions based only on analysis of RI strains should be interpreted with caution. To facilitate interpretation of linkage data derived from RI strains, a table is presented giving the 95 percent and 99 percent confidence intervals for all possible linkages detected with up to 45 RI strains.