Reference "The grapevine genome sequence suggests ancestral hexaploidization in major angiosperm phyla"

Reference ID

41843

Title

The grapevine genome sequence suggests ancestral hexaploidization in major angiosperm phyla

Source

Nature, 2007, vol. 449, pp. 463-467

Authors (53)

Jaillon-O	Aury-J-M	Noel-B	Policriti-A	Clepet-C	Casagrande-A	Choisne-N	Aubourg-S
Vitulo-N	Jubin-C	Vezzi-A	Legeai-F	Hugueney-P	Dasilva-C	Horner-D	Mica-E
Jublot-D	Poulain-J	Bruyere-C	Billault-A	Segurens-B	Gouyvenoux-M	Ugarte-E	Cattonaro-F
Anthouard-V	Vico-V	Alaux-M	Dumas-V	Felice-N	Paillard-S	Juman-I	Moroldo-M
Scalabrin-S	Canaguier-A	Malacrida-G	Durand-E	Pesole-G	Laucou-V	Chatelet-P	Merdinoglu-D
Delledonne-M	Pezzotti-M	Lecharny-A	Scarpelli-C	Artiguenave-F	Pe-M-E	Valle-G	Morgante-M
Caboche-M	Adam-Blondon-A-F	Weissenbach-J	Quetier-F	Wincker-P

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.