Evidence for selective differences in single-band polytene chromosome polymorphism in Sciara ocellaris.

Abstract excerpt

Sciara ocellaris (Bradysia tritici) is a dipteran species characterized by an extensive polymorphism of structural modifications of single bands occurring in the polytene chromosomes. In this experiment we obtained estimates of egg-to-adult viabilities in relation to the genotypes determined by 15 different loci. In spite of the presence of considerable levels of linkage disequilibrium possibly generated by...

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