Plant genome evolution: lessons from comparative genomics at the DNA level

Plant Mol Biol. 2002 Jan;48(1-2):21-37.

Abstract

Angiosperm genomes show tremendous variability in genome size and chromosome number. Nevertheless, comparative genetic mapping has revealed genome collinearity of closely related species. Sequence-based comparisons were used to assess the conservation of gene arrangements. Numerous small rearrangements, insertions/deletions, duplications, inversions and translocations have been detected. Importantly, comparative sequence analyses have unambiguously shown micro-collinearity of distantly related plant species. Duplications and subsequent gene loss have been identified as a particular important factor in the evolution of plant genomes.

Publication types

  • Comparative Study
  • Review

MeSH terms

  • Base Composition
  • DNA, Plant / genetics
  • Evolution, Molecular*
  • Genes, Plant / genetics
  • Genome, Plant*
  • Genomics
  • Plants / genetics*

Substances

  • DNA, Plant