Author： SOCHA RADOMÍR NEDVĚD OLDŘICH ZRZAVÝ JAN
Publisher： Entomological Society of America
ISSN： 1938-2901
Source： Annals of the Entomological Society of America, Vol.86, Iss.4, 1993-07, pp. : 484-489
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Abstract
Wing length polymorphism in Pyrrhocoris apterus (L.) was analyzed morphometrically. Spring and autumn wild population samples as well as several laboratory strains (Apricot [Ap], mosaic [mo], macropterous [ma], and unstable micropterous [ump]) were included in the analysis. All populations but two were found uniformly brachypterous; ma segregated both brachypterous and macropterous individuals and ump was characterized by unusual destabilization of wing length (left and right unequal) and segregation of a high percentage of micropterous individuals. Whereas the decision of brachypterism versus macropterism is based mainly on environmental control of a major gene whose recessive allele is responsible for the macropterism, a new mode of wing length regulation is suggested, engaged in conspicuous destabilization of ump wings and consisting presumably in transpositions of mobile genetic elements.
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