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

Olivier Raymond 1 Jerome Gouzy 2 Jérémy Just 1 Hélène Badouin 2, 3 Marion Verdenaud 1 Arnaud Lemainque 4 Philippe Vergne 1 Sandrine Moja 5 Nathalie Choisne 6 Caroline Pont 7 Sébastien Carrere 2 Jean-Claude Caissard 5 Arnaud Couloux 8 Ludovic Cottret 9 Jean-Marc Aury 8 Judit Szécsi 1 David Latrasse 10 Mohammed Madoui 10 Léa Francois 1 Xiaopeng Fu 11 Shu-Hua Yang Annick Dubois 1 Florence Piola 12 Antoine Larrieu 1 Magali Perez 10 Karine Labadie 8 Lauriane Perrier 1 Benjamin Govetto 13 Yoan Labrousse 13 Priscilla Villand 1 Claudia Bardoux 1 Véronique Boltz 1 Celine Lopez-Roques Pascal Heitzler 14 Teva Vernoux 1 Michiel Vandenbussche 1 Hadi Quesneville 6 Adnane Boualem 10 Abdelhafid Bendahmane 10 Chang Liu 15 Manuel Le Bris 13 Jérôme Salse 7 Sylvie Baudino 5 Moussa Benhamed 10 Patrick Wincker 8 Mohammed Bendahmane 1
Abstract : 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 meta-assembly 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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Olivier Raymond, Jerome Gouzy, Jérémy Just, Hélène Badouin, Marion Verdenaud, et al.. The Rosa genome provides new insights into the domestication of modern roses. Nature Genetics, Nature Publishing Group, 2018, 50 (6), pp.772-777. ⟨10.1038/s41588-018-0110-3⟩. ⟨hal-01798003⟩

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