A1 Journal article (refereed)
Adaptation to fluctuations in temperature by nine species of bacteria (2018)

Saarinen, K., Laakso, J., Lindström, L., & Ketola, T. (2018). Adaptation to fluctuations in temperature by nine species of bacteria. Ecology and Evolution, 8(5), 2901-2910. https://doi.org/10.1002/ece3.3823

JYU authors or editors

Publication details

All authors or editors: Saarinen, Kati; Laakso, Jouni; Lindström, Leena; Ketola, Tarmo

Journal or series: Ecology and Evolution

ISSN: 2045-7758

eISSN: 2045-7758

Publication year: 2018

Volume: 8

Issue number: 5

Pages range: 2901-2910

Publisher: Blackwell Publishing Ltd

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1002/ece3.3823

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/57263


Rapid environmental fluctuations are ubiquitous in the wild, yet majority of experimental studies mostly consider effects of slow fluctuations on organism. To test the evolutionary consequences of fast fluctuations, we conducted nine independent experimental evolution experiments with bacteria. Experimental conditions were same for all species, and we allowed them to evolve either in fluctuating temperature alternating rapidly between 20°C and 40°C or at constant 30°C temperature. After experimental evolution, we tested the performance of the clones in both rapid fluctuation and in constant environments (20°C, 30°C and 40°C). Results from experiments on these nine species were combined meta-analytically. We found that overall the clones evolved in the fluctuating environment had evolved better efficiency in tolerating fluctuations (i.e., they had higher yield in fluctuating conditions) than the clones evolved in the constant environment. However, we did not find any evidence that fluctuation-adapted clones would have evolved better tolerance to any measured constant environments (20°C, 30°C, and 40°C). Our results back up recent empirical findings reporting that it is hard to predict adaptations to fast fluctuations using tolerance curves. © 2018 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.

Keywords: environment; circumstances; temperature; organisms; bacteria; effects (results); adaptation (change); tolerances (physical properties); evolutionary biology

Free keywords: experimental evolution; reaction norm; temperature fluctuation; tolerance curve

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Ministry reporting: Yes

Reporting Year: 2018

JUFO rating: 1

Last updated on 2021-17-09 at 16:09