Meiotic gene evolution: Can you teach a new dog new tricks?

Andrew H Lloyd, Marion Ranoux, Sonia Vautrin, Natasha Glover, Joelle Fourment, Delphine Charif, Frederic Choulet, Gilles Lassalle, William Marande, Joseph Tran, Fabienne Granier, Lise Pingault, Arnaud Remay, Catherine Marquis, Harry Belcram, Boulos Chalhoub, Catherine Feuillet, Hélène Bergès, Pierre Sourdille, Eric Jenczewski

Research output: Contribution to journalArticlepeer-review

44 Citations (SciVal)


Meiosis, the basis of sex, evolved through iterative gene duplications. To understand whether subsequent duplications have further enriched the core meiotic "tool-kit," we investigated the fate of meiotic gene duplicates following whole genome duplication (WGD), a common occurrence in eukaryotes. We show that meiotic genes return to a single copy more rapidly than genome-wide average in angiosperms, one of the lineages in which WGD is most vividly exemplified. The rate at which duplicates are lost decreases through time, a tendency that is also observed genome-wide and may thus prove to be a general trend post-WGD. The sharpest decline is observed for the subset of genes mediating meiotic recombination; however, we found no evidence that the presence of these duplicates is counterselected in two recent polyploid crops selected for fertility. We therefore propose that their loss is passive, highlighting how quickly WGDs are resolved in the absence of selective duplicate retention.

Original languageEnglish
Pages (from-to)1724-1727
Number of pages4
JournalMolecular Biology and Evolution
Issue number7
Early online date01 Apr 2014
Publication statusPublished - 01 Jul 2014
Externally publishedYes


  • Evolution, Molecular
  • Gene Duplication
  • Genome, Plant
  • Homologous Recombination
  • Magnoliopsida/genetics
  • Meiosis
  • polyploidy
  • whole genome duplication
  • evolution
  • duplication
  • genome


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