Journal of Molecular Evolution

, Volume 40, Issue 1, pp 107–113 | Cite as

Frequencies of synonymous substitutions in mammals are gene-specific and correlated with frequencies of nonsynonymous substitutions

  • Dominique Mouchiroud
  • Christian Gautier
  • Giorgio Bernardi
Articles

Abstract

The frequencies of synonymous substitutions of mammalian genes cover a much wider range than previously thought. We report here that the different frequencies found in homologous genes from a given mammalian pair are correlated with those in the same homologous genes from a different mammalian pair. This indicates that the frequencies of synonymous substitutions are gene-specific (as are the frequencies of nonsynonymous substitutions), or, in other words, that “fast” and “slow” genes in one mammal are fast and slow, respectively, in any other one. Moreover, the frequencies of synonymous substitutions are correlated with the frequencies of nonsynonymous substitution in the same genes.

Key words

DNA repair DNA replication DNA transcription Isochores 

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Copyright information

© Springer-Verlag New York Inc. 1995

Authors and Affiliations

  • Dominique Mouchiroud
    • 1
  • Christian Gautier
    • 1
  • Giorgio Bernardi
    • 2
  1. 1.Laboratoire de Biométrie, Génétique et Biologic des Populations, U.R.A. 243Université Claude BernardVilleurbanneFrance
  2. 2.Laboratoire de Génétique MoléculaireInstitut Jacques MonodParisFrance

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