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The high-quality draft genome of peach (Prunus persica) identifies unique patterns of genetic diversity, domestication and genome evolution

2013; Nature Portfolio; Volume: 45; Issue: 5 Linguagem: Inglês

10.1038/ng.2586

1546-1718

Ignazio Verde, Albert G. Abbott, Simone Scalabrin, Sook Jung, Shengqiang Shu, Fabio Marroni, Tatyana Zhebentyayeva, Maria Teresa Dettori, Jane Grimwood, Federica Cattonaro, Andrea Zuccolo, Laura Rossini, Jerry Jenkins, Elisa Vendramin, Lee A. Meisel, Veronique Decroocq, Bryon Sosinski, Simon Prochnik, Therese Mitros, Alberto Policriti, Guido Cipriani, Luca Dondini, Stephen Ficklin, David Goodstein, Pengfei Xuan, Cristian Del Fabbro, Valeria Aramini, Dario Copetti, Susana González, David S. Horner, Rachele Falchi, Susan Lucas, E. Mica, Jonathan Maldonado, Barbara Lazzari, Douglas G. Bielenberg, Raul Pirona, Mara Miculan, Abdelali Bara­kat, Raffaele Testolin, Alessandra Stella, Stefano Tartarini, P. Tonutti, Pere Arús, Ariel Orellana, Christina E. Wells, Dorrie Main, G. Vizzotto, Hermán Silva, Francesco Salamini, Jeremy Schmutz, Michele Morgante, Daniel S. Rokhsar,

Plant Physiology and Cultivation Studies

The International Peach Genome Initiative reports the high quality draft genome sequence of peach (Prunus persica). They also resequenced ten additional P. persica accessions, as well as those of Prunus ferganensis, Prunus kansuensis, Prunus davidiana and Prunus mira. Rosaceae is the most important fruit-producing clade, and its key commercially relevant genera (Fragaria, Rosa, Rubus and Prunus) show broadly diverse growth habits, fruit types and compact diploid genomes. Peach, a diploid Prunus species, is one of the best genetically characterized deciduous trees. Here we describe the high-quality genome sequence of peach obtained from a completely homozygous genotype. We obtained a complete chromosome-scale assembly using Sanger whole-genome shotgun methods. We predicted 27,852 protein-coding genes, as well as noncoding RNAs. We investigated the path of peach domestication through whole-genome resequencing of 14 Prunus accessions. The analyses suggest major genetic bottlenecks that have substantially shaped peach genome diversity. Furthermore, comparative analyses showed that peach has not undergone recent whole-genome duplication, and even though the ancestral triplicated blocks in peach are fragmentary compared to those in grape, all seven paleosets of paralogs from the putative paleoancestor are detectable.