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dc.contributor.authorKauranen, Hannele
dc.contributor.authorKinnunen, Johanna
dc.contributor.authorHiillos, Anna-Lotta
dc.contributor.authorLankinen, Pekka
dc.contributor.authorHopkins, David
dc.contributor.authorWiberg, R. Axel W.
dc.contributor.authorRitchie, Michael G.
dc.contributor.authorHoikkala, Anneli
dc.identifier.citationKauranen , H , Kinnunen , J , Hiillos , A-L , Lankinen , P , Hopkins , D , Wiberg , R A W , Ritchie , M G & Hoikkala , A 2019 , ' Selection for reproduction under short photoperiods changes diapause-associated traits and induces widespread genomic divergence ' , Journal of Experimental Biology , vol. 222 , no. 20 , jeb205831 .
dc.identifier.otherPURE: 262152229
dc.identifier.otherPURE UUID: 304a97cd-d8b2-4193-959c-04a1c9ca7e04
dc.identifier.otherRIS: urn:D572ABAB8F23DC0AD072A3B67F72B27B
dc.identifier.otherPubMed: 31511345
dc.identifier.otherScopus: 85073582469
dc.identifier.otherORCID: /0000-0001-7913-8675/work/63716647
dc.identifier.otherWOS: 000493796100010
dc.descriptionThe work has been supported by the Academyof Finland to A.H. (project 267244) and Natural Environment Research Council (NERC) funding (NE/J020818/1 to M.G.R.; NE/L501852/1 to R.A.W.W.).en
dc.description.abstractThe incidence of reproductive diapause is a critical aspect of life history in overwintering insects from temperate regions. Much has been learned about the timing, physiology and genetics of diapause in a range of insects, but how the multiple changes involved in this and other photoperiodically regulated traits are inter-related is not well understood. We performed quasinatural selection on reproduction under short photoperiods in a northern fly species, Drosophila montana, to trace the effects of photoperiodic selection on traits regulated by the photoperiodic timer and/or by a circadian clock system. Selection changed several traits associated with reproductive diapause, including the critical day length for diapause (CDL), the frequency of diapausing females under photoperiods that deviate from daily 24 h cycles and cold tolerance, towards the phenotypes typical of lower latitudes. However, selection had no effect on the period of free-running locomotor activity rhythm regulated by the circadian clock in fly brain. At a genomic level, selection induced extensive divergence from the control line in 16 gene clusters involved in signal transduction, membrane properties, immunologlobulins and development. These changes resembled those detected between latitudinally divergent D. montana populations in the wild and involved SNP divergence associated with several genes linked with diapause induction. Overall, our study shows that photoperiodic selection for reproduction under short photoperiods affects diapause-associated traits without disrupting the central clock network generating circadian rhythms in fly locomotor activity.
dc.relation.ispartofJournal of Experimental Biologyen
dc.rightsCopyright © 2019 The Author(s). Published by The Company of Biologists Ltd. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the final published version of the work, which was originally published at
dc.subjectReproductive diapauseen
dc.subjectCritical day lengthen
dc.subjectCold toleranceen
dc.subjectGenome analysesen
dc.subjectPhotoperiodic timeren
dc.subjectCircadian clocken
dc.subjectQH301 Biologyen
dc.titleSelection for reproduction under short photoperiods changes diapause-associated traits and induces widespread genomic divergenceen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Biologyen
dc.contributor.institutionUniversity of St Andrews.Centre for Biological Diversityen
dc.contributor.institutionUniversity of St Andrews.Institute of Behavioural and Neural Sciencesen
dc.description.statusPeer revieweden

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