Epigenetic changes and repositioning determine the evolutionary fate of duplicated genes

S. N. Rodin, D. V. Parkhomchuk, A. D. Riggs

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Consideration of epigenetic silencing, perhaps by DNA methylation, led to an epigenetic complementation (EC) model for evolution by gene duplication (Rodin and Riggs (2003) J. Mol. Evol., 56, 718-729). This and subsequent work on genome-wide analyses of gene duplicates in several eukaryotic species pointed to a fundamental link between localization in the genome, epigenetic regulation of expression, and the evolutionary fate of new redundant gene copies, which can be either non- or neo-functionalization. Our main message in this report is that repositioning of a new duplicate to an ectopic site epigenetically alters its expression pattern, and concomitantly the rate and direction of mutations. Furthermore, comparison of syntenic vs. non-syntenic pairs of gene duplicates of different age unambiguously indicates that repositioning saves redundant gene duplicates from pseudogenization and hastens their evolution towards a new development-time and tissue-specific pattern of function.

Original languageEnglish
Pages (from-to)559-567
Number of pages9
JournalBiochemistry (Moscow)
Volume70
Issue number5
DOIs
Publication statusPublished - May 1 2005

Keywords

  • Comparative genomics
  • DNA methylation
  • Gene duplications
  • Genetic complexity
  • Molecular evolution
  • Position effects

ASJC Scopus subject areas

  • Biochemistry

Fingerprint Dive into the research topics of 'Epigenetic changes and repositioning determine the evolutionary fate of duplicated genes'. Together they form a unique fingerprint.

  • Cite this