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The Journal of Heredity 1986:77(6):465-467
© 1986 The American Genetic Association 77:465-467

other

Inheritance of wing form in Pyrrhocoris apterus

Alois Honek

The author's address is Research Institute of Plant Production, Department of Entomology, 161 06 Praha 6-Ruzyne 507, Czechoslovakia.

Abstract

A selected macropterous strain of Pyrrhocoris apterus (L.) with an average proportion of the macropterous phenotype of about 65 percent, was crossed with a brachypterous wild strain (about 1 percent of macropters). The progeny was kept under conditions promoting the penetrance of the macropterous trait (long-day photoperiod, 26°C). F1 hybrids from reciprocal crosses of the original strains, F2 hybrids, back-crosses of F1 hybrids to parental strains, and F3 hybrids were obtained. Results suggest that macropterism is a recessive trait, but sex linkage was not demonstrated. A model with two allelic major genes whose penetrance was influenced by modifier genes with additive effects did not completely fit the data, possibly due to an interaction among modifier genes.


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