Skip to main content
Log in

Molecular population genetics of male and female mitochondrial genomes in European mussels Mytilus

  • Original Paper
  • Published:
Marine Biology Aims and scope Submit manuscript

Abstract

The doubly uniparental system of mitochondrial inheritance (DUI) is best known in marine mussels Mytilus. Under DUI there are two types of mitochondrial DNA (mtDNA). The female type (F) is transmitted to offspring of both genders and the male type (M) exclusively to sons; consequently two distinct mtDNA lineages exist. The M lineage evolves under more relaxed selection than the F lineage resulting in higher polymorphism within the M lineage. Though this polymorphism is expected to make inferences on fine population structure easier using M instead of F data, no comprehensive comparative data exist to support this claim. We sequenced a 1,205 bp fragment of M and F mtDNA comprising parts of the COIII and ND2 genes, and analysed 204 individuals representing three Mytilus species: M. edulis, M. galloprovincialis and M. trossulus from 13 European sampling sites. A clear distinction between Mediterranean and Atlantic populations was found with both M and F data, but much better geographic differentiation was found within the Atlantic using F rather than M data. In particular, Atlantic M. galloprovincialis can be differentiated from Atlantic M. edulis, and further subdivision of Atlantic M. edulis is possible using the F data but not the M data. Multiple tests of selection were carried out to attempt to explain this paradox. We concluded that the overall pattern of polymorphism is consistent with strong purifying selection; not only is this selection relaxed in the M lineage in comparison with the F lineage, but it is also more frequently interrupted by periodic selective sweeps within the M lineage.

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.

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

References

Download references

Acknowledgments

We thank the members of BIOCOMBE project for help with sample collection. This work was partially funded by a grant from the Polish Ministry of Science SBP Nr. 31/E-45/5.PR UE. Bayesian analyses were done on the computer cluster of Academic Computer Center (TASK) in Gdansk.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Beata Śmietanka.

Additional information

Communicated by T. Reusch.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Śmietanka, B., Burzyński, A. & Wenne, R. Molecular population genetics of male and female mitochondrial genomes in European mussels Mytilus . Mar Biol 156, 913–925 (2009). https://doi.org/10.1007/s00227-009-1137-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00227-009-1137-x

Keywords

Navigation