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Gene Duplication: Evolution

  1. Wen-Hsiung Li

Published Online: 21 DEC 2007

DOI: 10.1002/9780470015902.a0005096.pub2



How to Cite

Li, W.-H. 2007. Gene Duplication: Evolution. eLS. .

Author Information

  1. University of Chicago, Chicago, Illinois, USA

Publication History

  1. Published Online: 21 DEC 2007


Gene duplication is the major source of genetic novelties, because a duplicate copy may be free to change to a new function. Indeed, genome sequencing and statistical analyses have revealed that each eukaryotic genome contain numerous duplicate genes. Furthermore, there is evidence that a genome duplication occurred in the common ancestor of vertebrates and this might has been important for the diversification and organismal complexity of vertebrates.


  • duplicate genes;
  • regional duplication;
  • genome duplication;
  • gene family;
  • superfamily;
  • isozymes;
  • new function