Palaeogenomics in cereals: modeling of ancestors for modern species improvement

C R Biol. 2011 Mar;334(3):205-11. doi: 10.1016/j.crvi.2010.12.014. Epub 2011 Jan 31.


During the last decade, technological improvements led to the development of large sets of plant genomic resources permitting the emergence of high-resolution comparative genomic studies. Synteny-based identification of seven shared duplications in cereals led to the modeling of a common ancestral genome structure of 33.6 Mb structured in five protochromosomes containing 9138 protogenes and provided new insights into the evolution of cereal genomes from their extinct ancestors. Recent palaeogenomic data indicate that whole genome duplications were a driving force in the evolutionary success of cereals over the last 50 to 70 millions years. Finally, detailed synteny and duplication relationships led to an improved representation of cereal genomes in concentric circles, thus providing a new reference tool for improved gene annotation and cross-genome markers development.

Publication types

  • Historical Article
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Agriculture
  • Chromosomes, Plant
  • Edible Grain / genetics*
  • Edible Grain / history*
  • Genes, Plant / genetics
  • Genomics*
  • History, Ancient
  • Molecular Biology
  • Paleontology*
  • Polyploidy
  • Synteny