Latitudinal clines in the timing and temperature‐sensitivity of photoperiodic reproductive diapause in Drosophila montana
Reproductive diapause is a primary mechanism used by arthropods to synchronize their life cycle with seasonal changes in temperate regions. Our study species, Drosophila montana, represents the northern insect species where flies enter reproductive diapause under short day conditions and where the p...
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ftjyvaeskylaenun:oai:jyx.jyu.fi:123456789/67883 2024-05-19T07:43:18+00:00 Latitudinal clines in the timing and temperature‐sensitivity of photoperiodic reproductive diapause in Drosophila montana Tyukmaeva, Venera Lankinen, Pekka Kinnunen, Johanna Kauranen, Hannele Hoikkala, Anneli 2020 application/pdf 759-768 fulltext http://urn.fi/URN:NBN:fi:jyu-202002192117 eng eng John Wiley & Sons Ecography 0906-7590 5 43 267244 https://doi.org/10.5061/dryad.59zw3r241 10.1111/ecog.04892 Research Council of Finland Suomen Akatemia Tyukmaeva, V., Lankinen, P., Kinnunen, J., Kauranen, H., & Hoikkala, A. (2020). Latitudinal clines in the timing and temperature‐sensitivity of photoperiodic reproductive diapause in Drosophila montana. Ecography , 43 (5), 759-768. https://doi.org/10.1111/ecog.04892 CONVID_34627286 URN:NBN:fi:jyu-202002192117 http://urn.fi/URN:NBN:fi:jyu-202002192117 CC BY 3.0 © 2020 The Authors. Ecography published by John Wiley & Sons Ltd on behalf of Nordic Society Oikos openAccess https://creativecommons.org/licenses/by/3.0/ clinal variation critical photoperiod fenologia talvehtiminen sopeutuminen ilmastonmuutokset article http://purl.org/eprint/type/JournalArticle http://purl.org/coar/resource_type/c_2df8fbb1 publishedVersion A1 2020 ftjyvaeskylaenun https://doi.org/10.5061/dryad.59zw3r241 2024-04-23T23:38:28Z Reproductive diapause is a primary mechanism used by arthropods to synchronize their life cycle with seasonal changes in temperate regions. Our study species, Drosophila montana, represents the northern insect species where flies enter reproductive diapause under short day conditions and where the precise timing of diapause is crucial for both survival and offspring production. We have studied clinal variation in the critical day length for female diapause induction (CDL) and their overall susceptibility to enter diapause (diapause incidence), as well as the temperature sensitivity of these traits. The study was performed using multiple strains from four latitudinal clines of the species – short clines in Finland and Alaska and long clines in the Rocky Mountains and the western coast of North America – and from one population in Kamchatka, Russia. CDL showed strong latitudinal clines on both continents, decreasing by one hour per five degrees decline in latitude, on average. CDL also decreased in all populations along with an increase in fly rearing temperature postponing the diapause to later calendar time, the effects of temperature being stronger in southern than in northern population. Female diapause incidence was close to 100% under short day/low temperature conditions in all populations, but decreased below 50% even under short days in 19°C in the southern North American western coast populations and in 22°C in most populations. Comparing a diversity of climatic data for the studied populations showed that while CDL is under a tight photoperiodic regulation linked with latitude, its length depends also on climatic factors determining the growing season length. Overall, the study deepens our understanding of how spatial and environmental parameters affect the seasonal timing of an important biological event, reproductive diapause and helps to estimate the evolutionary potential of insect populations to survive in changing climatic conditions. peerReviewed Article in Journal/Newspaper Kamchatka Alaska JYX - Jyväskylä University Digital Archive |
institution |
Open Polar |
collection |
JYX - Jyväskylä University Digital Archive |
op_collection_id |
ftjyvaeskylaenun |
language |
English |
topic |
clinal variation critical photoperiod fenologia talvehtiminen sopeutuminen ilmastonmuutokset |
spellingShingle |
clinal variation critical photoperiod fenologia talvehtiminen sopeutuminen ilmastonmuutokset Tyukmaeva, Venera Lankinen, Pekka Kinnunen, Johanna Kauranen, Hannele Hoikkala, Anneli Latitudinal clines in the timing and temperature‐sensitivity of photoperiodic reproductive diapause in Drosophila montana |
topic_facet |
clinal variation critical photoperiod fenologia talvehtiminen sopeutuminen ilmastonmuutokset |
description |
Reproductive diapause is a primary mechanism used by arthropods to synchronize their life cycle with seasonal changes in temperate regions. Our study species, Drosophila montana, represents the northern insect species where flies enter reproductive diapause under short day conditions and where the precise timing of diapause is crucial for both survival and offspring production. We have studied clinal variation in the critical day length for female diapause induction (CDL) and their overall susceptibility to enter diapause (diapause incidence), as well as the temperature sensitivity of these traits. The study was performed using multiple strains from four latitudinal clines of the species – short clines in Finland and Alaska and long clines in the Rocky Mountains and the western coast of North America – and from one population in Kamchatka, Russia. CDL showed strong latitudinal clines on both continents, decreasing by one hour per five degrees decline in latitude, on average. CDL also decreased in all populations along with an increase in fly rearing temperature postponing the diapause to later calendar time, the effects of temperature being stronger in southern than in northern population. Female diapause incidence was close to 100% under short day/low temperature conditions in all populations, but decreased below 50% even under short days in 19°C in the southern North American western coast populations and in 22°C in most populations. Comparing a diversity of climatic data for the studied populations showed that while CDL is under a tight photoperiodic regulation linked with latitude, its length depends also on climatic factors determining the growing season length. Overall, the study deepens our understanding of how spatial and environmental parameters affect the seasonal timing of an important biological event, reproductive diapause and helps to estimate the evolutionary potential of insect populations to survive in changing climatic conditions. peerReviewed |
format |
Article in Journal/Newspaper |
author |
Tyukmaeva, Venera Lankinen, Pekka Kinnunen, Johanna Kauranen, Hannele Hoikkala, Anneli |
author_facet |
Tyukmaeva, Venera Lankinen, Pekka Kinnunen, Johanna Kauranen, Hannele Hoikkala, Anneli |
author_sort |
Tyukmaeva, Venera |
title |
Latitudinal clines in the timing and temperature‐sensitivity of photoperiodic reproductive diapause in Drosophila montana |
title_short |
Latitudinal clines in the timing and temperature‐sensitivity of photoperiodic reproductive diapause in Drosophila montana |
title_full |
Latitudinal clines in the timing and temperature‐sensitivity of photoperiodic reproductive diapause in Drosophila montana |
title_fullStr |
Latitudinal clines in the timing and temperature‐sensitivity of photoperiodic reproductive diapause in Drosophila montana |
title_full_unstemmed |
Latitudinal clines in the timing and temperature‐sensitivity of photoperiodic reproductive diapause in Drosophila montana |
title_sort |
latitudinal clines in the timing and temperature‐sensitivity of photoperiodic reproductive diapause in drosophila montana |
publisher |
John Wiley & Sons |
publishDate |
2020 |
url |
http://urn.fi/URN:NBN:fi:jyu-202002192117 |
genre |
Kamchatka Alaska |
genre_facet |
Kamchatka Alaska |
op_relation |
Ecography 0906-7590 5 43 267244 https://doi.org/10.5061/dryad.59zw3r241 10.1111/ecog.04892 Research Council of Finland Suomen Akatemia Tyukmaeva, V., Lankinen, P., Kinnunen, J., Kauranen, H., & Hoikkala, A. (2020). Latitudinal clines in the timing and temperature‐sensitivity of photoperiodic reproductive diapause in Drosophila montana. Ecography , 43 (5), 759-768. https://doi.org/10.1111/ecog.04892 CONVID_34627286 URN:NBN:fi:jyu-202002192117 http://urn.fi/URN:NBN:fi:jyu-202002192117 |
op_rights |
CC BY 3.0 © 2020 The Authors. Ecography published by John Wiley & Sons Ltd on behalf of Nordic Society Oikos openAccess https://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.5061/dryad.59zw3r241 |
_version_ |
1799483030401712128 |