Doklady Biochemistry and Biophysics

, Volume 483, Issue 1, pp 333–336 | Cite as

Adaptation of Rodents Living in a Highland: Combination of Mitochondrial Introgression and Convergent Molecular Evolution

  • D. S. KostinEmail author
  • L. A. Lavrenchenko
Biochemistry, Biophysics, and Molecular Biology


Populations of four species of narrow-headed rats of the genus Stenocephalemys were examined for the presence of a mutation in the mitochondrial cytochrome b gene resulting in an amino acid substitution in the translated protein. This substitution was also found in hamsters of the subfamily Sigmodontinae inhabiting the highlands of the Andes. Simulation of three-dimensional structure of the protein showed that this substitution is located in the active site and may have a functional significance. We assumed an independent emergence of this substitution in the populations of two Afroalpine species of Stenocephalemys, which is the first known example of a combination of introgression and convergent molecular evolution.


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© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  1. 1.Severtsov Institute of Ecology and EvolutionRussian Academy of SciencesMoscowRussia
  2. 2.Koltzov Institute of Developmental BiologyRussian Academy of SciencesMoscowRussia

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