A1 Journal article (refereed)
Localization of quantitative trait loci for diapause and other photoperiodically regulated life history traits important in adaptation to seasonally varying environments (2015)

Tyukmaeva, V., Veltsos, P., Slate, J., Gregson, E., Kauranen, H., Kankare, M., Ritchie, M. G., Butlin, R. K., & Hoikkala, A. (2015). Localization of quantitative trait loci for diapause and other photoperiodically regulated life history traits important in adaptation to seasonally varying environments. Molecular Ecology, 24(11), 2809-2819. https://doi.org/10.1111/mec.13202

JYU authors or editors

Publication details

All authors or editors: Tyukmaeva, Venera; Veltsos, Paris; Slate, Jon; Gregson, Emma; Kauranen, Hannele; Kankare, Maaria; Ritchie, Michael G.; Butlin, Roger K.; Hoikkala, Anneli

Journal or series: Molecular Ecology

ISSN: 0962-1083

eISSN: 1365-294X

Publication year: 2015

Volume: 24

Issue number: 11

Pages range: 2809–2819

Publisher: Wiley-Blackwell Publishing Ltd.

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1111/mec.13202

Research data link: https://doi.org/10.5061/dryad.9b65b

Publication open access: Not open

Publication channel open access: 

Additional information: Input file with genotype and phenotype data for r/qtl is available on Dryad.

Abstract

Seasonally changing environments at high latitudes present great challenges for the reproduction and survival of insects, and photoperiodic cues play an important role in helping them to synchronize their life cycle with prevalent and forthcoming conditions. We have mapped quantitative trait loci (QTL) responsible for the photoperiodic regulation of four life history traits, female reproductive diapause, cold tolerance, egg‐to‐eclosion development time and juvenile body weight in Drosophila montana strains from different latitudes in Canada and Finland. The F2 progeny of the cross was reared under a single photoperiod (LD cycle 16:8), which the flies from the Canadian population interpret as early summer and the flies from the Finnish population as late summer. The analysis revealed a unique QTL for diapause induction on the X chromosome and several QTL for this and the other measured traits on the 4th chromosome. Flies’ cold tolerance, egg‐to‐eclosion development time and juvenile body weight had several QTL also on the 2nd, 3rd and 5th chromosome, some of the peaks overlapping with each other. These results suggest that while the downstream output of females’ photoperiodic diapause response is partly under a different genetic control from that of the other traits in the given day length, all traits also share some QTL, possibly involving genes with pleiotropic effects and/or multiple tightly linked genes. Nonoverlapping QTL detected for some of the traits also suggest that the traits are potentially capable of independent evolution, even though this may be restricted by epistatic interactions and/or correlations and trade‐offs between the traits.

Free keywords: cold tolerance; development time; diapause; Drosophila montana; juvenile body weight; photoperiodism

Contributing organizations

Ministry reporting: Yes

VIRTA submission year: 2015

JUFO rating: 2