The grapevine genome sequence suggests ancestral hexaploidization in major angiosperm phyla.

Olivier Jaillon 1 Jean-Marc Aury 1 Benjamin Noel 1 Alberto Policriti 2, 3 Christian Clepet 4 Alberto Cassagrande 2, 5 Nathalie Choisne 1, 4 Sébastien Aubourg 4 Nicola Vitulo 6 Claire Jubin 1 Alessandro Vezzi 6 Fabrice Legeai 7 Philippe Hugueney 8 Corinne Dasilva 1 David Horner 9 Erica Mica 9 Delphine Jublot 4 Julie Poulain 1 Clémence Bruyère 4 Alain Billaut 1 Béatrice Ségurens 1 Michel Gouyvenoux 1 Edgardo Ugarte 1 Federica Cattorano 2 Véronique Anthouard 1 Virginie Vico 1 Christian Del Fabbro 2, 3 Michaël Alaux 7 Gabriele Di Gaspero 2, 5 Vincent Dumas 8 Nicoletta Felice 2, 5 Sophie Paillard 4 Irena Juman 2, 5 Marco Moroldo 4 Simone Scalabrin 2, 3 Aurélie Canaguier 4 Isabelle Le Clainche 4 Giorgio Malacrida 6 Eléonore Durand 7 Graziano Pesole 10, 11 Valérie Laucou 12 Philippe Chatelet 13 Didier Merdinoglu 8 Massimo Delledonne 14 Mario Pezzotti 15, 16 Alain Lecharny 4 Claude Scarpelli 1 François Artiguenave 1 M. Enrico Pé 9, 15 Giorgio Valle 6, 15 Michele Morgante 15 Michel Caboche 4 Anne-Françoise Adam-Blondon 4 Jean Weissenbach 1 Francis Quétier 1 Patrick Wincker 1
Abstract : The analysis of the first plant genomes provided unexpected evidence for genome duplication events in species that had previously been considered as true diploids on the basis of their genetics. These polyploidization events may have had important consequences in plant evolution, in particular for species radiation and adaptation and for the modulation of functional capacities. Here we report a high-quality draft of the genome sequence of grapevine (Vitis vinifera) obtained from a highly homozygous genotype. The draft sequence of the grapevine genome is the fourth one produced so far for flowering plants, the second for a woody species and the first for a fruit crop (cultivated for both fruit and beverage). Grapevine was selected because of its important place in the cultural heritage of humanity beginning during the Neolithic period. Several large expansions of gene families with roles in aromatic features are observed. The grapevine genome has not undergone recent genome duplication, thus enabling the discovery of ancestral traits and features of the genetic organization of flowering plants. This analysis reveals the contribution of three ancestral genomes to the grapevine haploid content. This ancestral arrangement is common to many dicotyledonous plants but is absent from the genome of rice, which is a monocotyledon. Furthermore, we explain the chronology of previously described whole-genome duplication events in the evolution of flowering plants.
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Article dans une revue
Nature, Nature Publishing Group, 2007, 449 (7161), pp.463-7. 〈10.1038/nature06148〉
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Soumis le : mercredi 17 octobre 2007 - 17:36:17
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Olivier Jaillon, Jean-Marc Aury, Benjamin Noel, Alberto Policriti, Christian Clepet, et al.. The grapevine genome sequence suggests ancestral hexaploidization in major angiosperm phyla.. Nature, Nature Publishing Group, 2007, 449 (7161), pp.463-7. 〈10.1038/nature06148〉. 〈inria-00180136〉

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