Evolutionary Ecology

, Volume 25, Issue 2, pp 525–530

Thermal energy and the rate of genetic evolution in marine fishes

  • Shane D. Wright
  • Howard A. Ross
  • D. Jeanette Keeling
  • Paul McBride
  • Len N. Gillman
Original Paper
  • 251 Downloads

Abstract

Slower genetic evolution in microbial thermophiles has been attributed to internal mutation control mechanisms in very high temperatures, whereas the tempo of plant microevolution has been positively correlated to ambient thermal conditions. Here, using a global dataset of 136 teleost fish species, contrasting warm and cool water species, and controlling for any differences between species in mutation control mechanisms, we found mitochondrial genetic evolution was 1.61 times faster in warm water species. These results suggest that temperature-mediated reduction in mutation rate is only important in extreme thermal regimes.

Keywords

Depth Latitude Microevolution Substitution rate 

Supplementary material

10682_2010_9416_MOESM1_ESM.doc (169 kb)
Supplementary material 1 (DOC 169 kb)

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • Shane D. Wright
    • 1
  • Howard A. Ross
    • 1
  • D. Jeanette Keeling
    • 1
  • Paul McBride
    • 2
  • Len N. Gillman
    • 2
  1. 1.School of Biological SciencesUniversity of AucklandAucklandNew Zealand
  2. 2.School of Applied ScienceAuckland University of TechnologyAucklandNew Zealand

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