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MultiRegress uses stepwise regression to map quantitative trait loci. The data consist of trait values that will be mapped onto expected genotypes. The standard data set can be translated by JZmapqtl using model 9. Map information is encoded in the data file and thus a separate map is not needed.

You might rightly ask "What does this program add to the QTL Cartographer system?" First, it doesn't require a map like the other programs in the QTL Cartographer system. Second, since all of the genotypic expected values have been calculated, just about any type of cross could be analyzed. The user could write a program to calculate expected genotypes at specified sites. Finally, it can speed up the process of finding QTL when using MImapqtl (see the EXAMPLE section).

Christopher Basten 2002-03-27