Skip to main content
Log in

Age at maturation has sex- and temperature-specific effects on telomere length in a fish

  • Physiological ecology - original research
  • Published:
Oecologia Aims and scope Submit manuscript

Abstract

Telomeres are highly conserved nucleoprotein structures which protect genome integrity. The length of telomeres is influenced by both genetic and environmental factors, but relatively little is known about how different hereditary and environmental factors interact in determining telomere length. We manipulated growth rates and timing of maturation by exposing full-sib nine-spined sticklebacks (Pungitius pungitius) to two different temperature treatments and quantified the effects of temperature treatments, sex, timing of maturation, growth rate and family (genetic influences) on telomere length. We did not find the overall effect of temperature treatment on the relative telomere length. However, we found that variation in telomere length was related to timing of maturation in a sex- and temperature-dependent manner. Telomere length was negatively related to age at maturation in elevated temperature and early maturing males and females differed in telomere length. Variation in growth rate did not explain any variation in telomere length. The broad sense heritability (h 2) of telomere length was estimated at h 2 = 0.31 − 0.47, suggesting predominance of environmental over genetic determinants of telomere length variability. This study provides the first evidence that age at maturation together with factors associated with it are influencing telomere length in an ectotherm. Future studies are encouraged to identify the extent to which these results can be replicated in other ectotherms.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3

Similar content being viewed by others

References

Download references

Acknowledgement

We would like to thank all people who helped with sampling and rearing fish, especially José M.Cano and John Loehr, Gábor Herczeg and Abigel Gonda. Sara Rezaei is thanked for her help with DNA extractions. Paolo Momigliano for linguistic corrections to an earlier version of this manuscript and Zitong Li for useful comments. This study was supported by the Academy of Finland (Grants 129662, 134728 and 218343 to JM; Grants 265671 and 303685 to AK), Natural Sciences and Engineering Research Council of Canada (Discovery Grant to AK), Finnish Cultural foundation (KN) and Nordenskiöld samfundet (KN).

Author information

Authors and Affiliations

Authors

Contributions

KN and JM conceived the idea, KN and AK designed the experiment, collected the data and performed statistical analyses, KN and JM wrote the manuscript, AK provided editorial advice.

Corresponding author

Correspondence to Kristina Noreikiene.

Additional information

Communicated by Joel Trexler.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Noreikiene, K., Kuparinen, A. & Merilä, J. Age at maturation has sex- and temperature-specific effects on telomere length in a fish. Oecologia 184, 767–777 (2017). https://doi.org/10.1007/s00442-017-3913-5

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00442-017-3913-5

Keywords

Navigation