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VitisNet, Vitis vinifera, Grapevine Molecular Networks, grape genome


Background: The first draft assembly and gene prediction of the grapevine genome (8X base coverage) was made available to the scientific community in 2007, and functional annotation was developed on this gene prediction. Since then additional Sanger sequences were added to the 8X sequences pool and a new version of the genomic sequence with superior base coverage (12X) was produced.
Results: In order to more efficiently annotate the function of the genes predicted in the new assembly, it is important to build on as much of the previous work as possible, by transferring 8X annotation of the genome to the 12X version. The 8X and 12X assemblies and gene predictions of the grapevine genome were compared to answer the question, “Can we uniquely map 8X predicted genes to 12X predicted genes?” The results show that while the assemblies and gene structure predictions are too different to make a complete mapping between them, most genes (18,725) showed a one-to-one relationship between 8X predicted genes and the last version of 12X predicted genes. In addition, reshuffled genomic sequence structures appeared. These highlight regions of the genome where the gene predictions need to be taken with caution. Based on the new grapevine gene functional annotation and in-depth functional categorization, twenty eight new molecular networks have been created for VitisNet while the existing networks were updated.
Conclusions: The outcomes of this study provide a functional annotation of the 12X genes, an update of VitisNet, the system of the grapevine molecular networks, and a new functional categorization of genes.

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BMC Research Notes







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BioMed Central


Copyright © 2012 the Authors


This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

1756-0500-5-213-S1 (1).tiff (513 kB)
The complete grape gene annotation and correspondence between the sets of sequences.

1756-0500-5-213-S2.xlsx (7088 kB)
List of theVitisputative proteins’ functional categories and correspondence with other catalogs.

1756-0500-5-213-S3 (3).xlsx (126 kB)
List of networks available in VitisNet.VVID

1756-0500-5-213-S4 (2).docx (35 kB)
Analyses workflow for determining cardinality between 8X and 12Xv1 assembly genes.