Vitis vinifera is the most cultivated and economically important grape species. Grapes are not only consumed fresh but processed in making juice and wine. Though new cultivars of grapes have been developed over last few decades, their introduction into the market has been difficult. An existing cultivar can also be manipulated for a desirable trait by genetic manipulation, if gene information is available.
V. vinifera is a diploid plant with 2n = 38 chromosomes. It has a small genome of about 500 Mb which makes genome analysis feasible in grapes. A draft genome sequence of Pinot Noir PN40024, a homozygotic cultivar, at 8x coverage was produced. The WGS contigs have been positioned on the genetic map. The multinational collaborative project decided to determine the sequence at 12X coverage. The RefSeq records have been produced from this material.
Seventeen genetic maps are available in MapViewer. The framework map and the Integrated map from the International Grape Genome Program are part of this group. Detailed information for the maps is available in the BioProject database.