Evolution of plant genome architecture

Genome Biol. 2016 Mar 1;17:37. doi: 10.1186/s13059-016-0908-1.

Abstract

We have witnessed an explosion in our understanding of the evolution and structure of plant genomes in recent years. Here, we highlight three important emergent realizations: (1) that the evolutionary history of all plant genomes contains multiple, cyclical episodes of whole-genome doubling that were followed by myriad fractionation processes; (2) that the vast majority of the variation in genome size reflects the dynamics of proliferation and loss of lineage-specific transposable elements; and (3) that various classes of small RNAs help shape genomic architecture and function. We illustrate ways in which understanding these organism-level and molecular genetic processes can be used for crop plant improvement.

Publication types

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

MeSH terms

  • Arabidopsis / genetics
  • DNA Transposable Elements / genetics
  • Evolution, Molecular*
  • Genome Size
  • Genome, Plant*
  • Phylogeny
  • Polyploidy*

Substances

  • DNA Transposable Elements