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Journal of Molecular Evolution

, Volume 46, Issue 2, pp 155–158 | Cite as

Evolution of the Plant Mitochondrial Genome: Dynamics of Duplication and Deletion of Sequences

  • B.  Albert
  • B.  Godelle
  • P.-H.  Gouyon

Abstract.

Several descriptive models have been proposed to explain the occurrence of deletion-duplication events in the plant mitochondrial genome. In order to investigate the dynamics of these events, we have simulated them using a computer model. The simulation shows that whatever the recombination rates between repeats, if a mitochondrial sequence becomes unnecessary for the proper function of mitochondria, this sequence can be deleted and another sequence can be duplicated in consequence. Furthermore, the model shows that the organization of the sequences with respect to the origin of replication has a great influence over the dynamics of the deletion-duplication events.

Key words: Recombination rates — Selection — Mitochondrial genome 

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Copyright information

© Springer-Verlag New York Inc. 1998

Authors and Affiliations

  • B.  Albert
    • 1
  • B.  Godelle
    • 1
  • P.-H.  Gouyon
    • 1
  1. 1.Laboratoire Evolution et Systématique, CNRS URA 2154, Bat 362, Université Paris XI, 91405 Orsay cedex, FranceFR

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