Change search
ReferencesLink to record
Permanent link

Direct link
Inheritance patterns of photoperiodic diapause induction in Leptinotarsa decemlineata
Stockholm University, Faculty of Science, Department of Zoology. University of Jyväskylä, Finland.
Number of Authors: 3
2016 (English)In: Physiological entomology (Print), ISSN 0307-6962, E-ISSN 1365-3032, Vol. 41, no 3, 218-223 p.Article in journal (Refereed) Published
Abstract [en]

Photoperiod is a reliable indicator of season and an important cue that many insects use for phenological synchronization. Undergoing range expansion insects can face a change in the local photoperiod to which they need to resynchronize. Rapid range expansion can be associated with rapid photoperiodic adaptation, which can be associated with intense selection on strongly heritable polygenic traits. Alternatively, it is proposed that, in insects with an XO sex-determination system, genes with large effect residing on the sex chromosome could drive photoperiodic adaptation because the gene or genes are exposed to selection in the sex carrying only a single X-chromosome. The present study seeks to understand which of these alternatives more likely explains the rapid photoperiodic adaptation in European Colorado potato beetles Leptinotarsa decemlineata Say. Diapause induction is assessed in beetles from a northern and a southern population, as well as from reciprocal hybrid crosses between the northern and southern population, when reared at an intermediate length photoperiod. The crosses within population display the expected responses, with the northern and southern populations showing high and low diapause propensity, respectively. The hybrids show intermediate responses in all studied traits. No clear difference in the responses in hybrids depending on the latitudinal origin of their father or mother is detected, even though partial paternal line dominance is seen in the responses of male beetles in one hybrid cross. These results therefore indicate that, in L. decemlineata, photoperiodic diapause induction is strongly heritable, and has an additive polygenic autosomal background.

Place, publisher, year, edition, pages
2016. Vol. 41, no 3, 218-223 p.
Keyword [en]
Autosomal inheritance, Coleoptera, hybridization, invasive species, rapid adaptation, sex linkage
National Category
Biological Sciences
URN: urn:nbn:se:su:diva-136949DOI: 10.1111/phen.12145ISI: 000386940600005OAI: diva2:1059740
Available from: 2016-12-23 Created: 2016-12-19 Last updated: 2016-12-23Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Lehmann, Philipp
By organisation
Department of Zoology
In the same journal
Physiological entomology (Print)
Biological Sciences

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 2 hits
ReferencesLink to record
Permanent link

Direct link