White luteus-5 maps near brachytic-2 on chromosome 1L

--Paul H. Sisco

White luteus-5 (formerly designated wl*-266a), an EMS-induced mutant generated by M.G. Neuffer, MG, was previously reported to be loosely linked to bz2 but not to bm2 (MNL 63:140, 1989). In our 1991 nursery we scored 420 F2 progeny from a cross between br2 and wlu5. We were not able unambiguously to score the albino lethal wlu5 homozygotes for brachytic vs. normal phenotype, but using the ability of the Mapmaker computer program to handle missing data we were able to estimate that wlu5 is approximately 5cM from br2.

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