Developmental relaxation of transposable element silencing in plants: functional or byproduct?

Curr Opin Plant Biol. 2012 Nov;15(5):496-502. doi: 10.1016/j.pbi.2012.09.001. Epub 2012 Sep 27.

Abstract

In plants, the developmental relaxation of transposable element silencing (DRTS) occurs at distinct spatial and temporal points in the normal development of a wild-type individual. Several examples of DRTS have now been described, including in maize shoot apical meristems, and in Arabidopsis meiocytes, endosperm and nurse cells of gametophytes. In this opinion article, we review the known DRTS events and speculate on the function, if any, of DRTS in plants.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.
  • Review

MeSH terms

  • Arabidopsis / genetics
  • Arabidopsis / growth & development
  • Chromatin / genetics
  • DNA Transposable Elements / genetics*
  • Endosperm / genetics
  • Epigenesis, Genetic*
  • Gene Expression Regulation, Developmental
  • Gene Expression Regulation, Plant / genetics*
  • Germ Cells, Plant / growth & development
  • Meristem / genetics
  • Meristem / growth & development
  • Organ Specificity
  • Plant Development*
  • Plants / genetics*
  • Reproduction / genetics
  • Zea mays / genetics
  • Zea mays / growth & development

Substances

  • Chromatin
  • DNA Transposable Elements