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The Rosa genome provides new insights into the domestication of modern roses

  • Raymond, O.
  • Gouzy, J.
  • Just, J.
  • Badouin, H.
  • Verdenaud, M.
  • Lemainque, A.
  • Vergne, P.
  • Moja, S.
  • Choisne, N.
  • Pont, C.
  • Carrere, S.
  • Caissard, J. C.
  • Couloux, A.
  • Cottret, L.
  • Aury, J. M.
  • Szecsi, J.
  • Latrasse, D.
  • Madoui, M. A.
  • Francois, L.
  • Fu, X. P.
  • And 26 more
Publication Date
Jan 01, 2018
Horizon / Pleins textes
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Roses have high cultural and economic importance as ornamental plants and in the perfume industry. We report the rose whole-genome sequencing and assembly and resequencing of major genotypes that contributed to rose domestication. We generated a homozygous genotype from a heterozygous diploid modern rose progenitor, Rosa chinensis 'Old Blush'. Using single-molecule real-time sequencing and a metaassembly approach, we obtained one of the most comprehensive plant genomes to date. Diversity analyses highlighted the mosaic origin of 'La France', one of the first hybrids combining the growth vigor of European species and the recurrent blooming of Chinese species. Genomic segments of Chinese ancestry identified new candidate genes for recurrent blooming. Reconstructing regulatory and secondary metabolism pathways allowed us to propose a model of interconnected regulation of scent and flower color. This genome provides a foundation for understanding the mechanisms governing rose traits and should accelerate improvement in roses, Rosaceae and ornamentals.

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