Review

Nature Reviews Genetics 10, 19-31 (January 2009) | doi:10.1038/nrg2487

RNA-based gene duplication: mechanistic and evolutionary insights

Henrik Kaessmann1, Nicolas Vinckenbosch1 & Manyuan Long2  About the authors

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Gene copies that stem from the mRNAs of parental source genes have long been viewed as evolutionary dead-ends with little biological relevance. Here we review a range of recent studies that have unveiled a significant number of functional retroposed gene copies in both mammalian and some non-mammalian genomes. These studies have not only revealed previously unknown mechanisms for the emergence of new genes and their functions but have also provided fascinating general insights into molecular and evolutionary processes that have shaped genomes. For example, analyses of chromosomal gene movement patterns via RNA-based gene duplication have shed fresh light on the evolutionary origin and biology of our sex chromosomes.

Author affiliations

  1. Center for Integrative Genomics, University of Lausanne, Genopode, CH-1015 Lausanne, Switzerland.
  2. Department of Ecology and Evolution, The University of Chicago, 1101 East 57th Street, Chicago, Illinois 60637, USA.

Correspondence to: Henrik Kaessmann1 Email: Henrik.Kaessmann@unil.ch

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