[Effect of mutations in the genes su(Hw) and mod(mdg4) on transvection between alleles of the Yellow locus in Drosophila melanogaster].

Abstract excerpt

A typical example of transvection is a complementation between alleles in the yellow locus: y2 (mdg4 insertion inactivating certain y-enhancers) and y1 (deletion of the y-promoter but not of the enhancer). Transvection was explained by trans-activation of promoter in y2-allele by enhancer of y1-allele. Here we found that the mutation mod(mdg4)1u1 in the modifier of mdg4 locus (a regulatory gene controlling,...

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