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Gene Families: Formation and Evolution

  1. Tomoko Ohta

Published Online: 14 MAR 2008

DOI: 10.1002/9780470015902.a0005125.pub2



How to Cite

Ohta, T. 2008. Gene Families: Formation and Evolution. eLS. .

Author Information

  1. National Institute of Genetics, Mishima, Japan

Publication History

  1. Published Online: 14 MAR 2008


A gene family is a set of genes derived by duplication of an ancestral gene. Various gene families, from small to large and from uniform to diverse, reflect effects of natural selection, random genetic drift and molecular mechanisms of gene duplication.


  • evolution of new function;
  • gene duplication;
  • genetic regulatory system;
  • genomic complexity;
  • drift;
  • selection