Linkage relationships among four enzyme loci in the predatory, treehole mosquito

Estimates are reported for the linkage distances between the isozyme loci for hydroxybutyrate dehydrogenase (HbDH), phosphoglucomutase (PGM), phosphoglucose isomerase (PGI), and esterase 8 (Est 8) in the predatory, treehole mosquito, Toxorhynchites rutilus rutilus. Measured linkage distances suggest that these four loci form a single autosomal linkage group approximately 47.4 linkage units in length. The estimates were measured with error because of small family sizes and, perhaps, because of different rates of recombination between males and females or the presence of a paracentric inversion associated with this linkage group. The four loci are tentatively placed in the following order: Est 8--HbDH--PGM--PGI.