On the photoperiodic induction of diapause in first generation hybrids of Harmonia Axyridis (PALL.) (Coleoptera, Coccinellidae)
Sergey Ya Reznik , Andrey N Ovchinnikov , Antonina A Ovchinnikova , Natalia A Belyakova , Larisa V Barabanova
Ecological Genetics ›› 2016, Vol. 14 ›› Issue (2) : 39 -42.
On the photoperiodic induction of diapause in first generation hybrids of Harmonia Axyridis (PALL.) (Coleoptera, Coccinellidae)
Background. Diapause is an important component of insect life cycle which ensures synchronization of reproduction and development with local seasonal climate. Genetic bases of this synchronization are particularly important for the analysis of biological invasions. Materials and methods. We investigated photoperiodic induction of diapause in hybrids between two populations of Harmonia axyridis (Pallas): autochthonous population from Irkutsk (Siberia) which shows a strong induction of diapause by short days and invasive population from Sochi (the Caucasus) which exhibits very weak photoperiodic induction of diapause. Results. Reciprocal crosses showed that the strong photoperiodic induction of diapause is dominant and the effects of male and female genotypes on progeny phenotype are equal.
Harmonia axyridis / Coccinellidae / inheritance / diapauses / photoperiod / insects / biological invasions / Harmonia axyridis / Coccinellidae
Reznik S.Y., Ovchinnikov A.N., Ovchinnikova A.A., Belyakova N.A., Barabanova L.V.
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