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Paralogous Genes and Chromosomal Regions

  1. Lars-Gustav Lundin,
  2. Dan Larhammar,
  3. Finn Hallböök

Published Online: 30 APR 2008

DOI: 10.1002/9780470015902.a0005072.pub2



How to Cite

Lundin, L.-G., Larhammar, D. and Hallböök, F. 2008. Paralogous Genes and Chromosomal Regions. eLS. .

Author Information

  1. Department of Neuroscience, BMC, Uppsala, Sweden

Publication History

  1. Published Online: 30 APR 2008

This is not the most recent version of the article. View current version (15 MAR 2013)


Paralogous genes exist within the genome of a particular species and have a common ancestry as a result of gene duplications. These can take place by a variety of mechanisms and may involve individual genes, chromosome regions, chromosomes or even entire genomes (tetraploidization). Gene duplications have facilitated evolution of more complex organisms.


  • paralogues;
  • orthologues;
  • regional duplications;
  • genome duplications;
  • gene maps