The local varieties have a multiple importance within the Italian grapevine germplasm. This is due to their ability to determine several typical sensory and hedonistic characteristics of wine as well as to evocate historical and cultural values related to the viticulture. This germplasm includes either the well-known or “major” varieties or the so called “minor” varieties, which characteristics and potentialities are often unknown. The major varieties, represent a solid reference for traditional and famous wine productions, although new knowledge may derive from investigating them by using the newest technologies. As concerns the minor varieties, the knowledge about their true identity, morphology, viticultural performance and oenological potential is still limited and fragmentary. This project funded in 2010 in the frame of the AGER projects devoted to scientific research in agro-food aims at the safeguard and valorization of the Italian grapevine biodiversity, by means of the study of a wide range of regional varieties and biotypes and the dissemination of the results by utilizing an informative system that allows a straightforward consultation and application by researchers, technicians and operators of the viticulture and the oenological sectors. The project integrates consolidated research protocols and innovative methodologies: ampelographic and phenological studies: according to the minimal list of the European project GrapeGen06 based on the second edition of the OIV descriptor list for grape varieties and Vitis species; ampelometric measurements by using the SUPERAMPELO software; analysis of the polymorphism of the 9 loci microsatellites indicated in by GenRes081 and GrapeGen06 European projects; analysis of the polymorphism of some tri-, tetra- and penta-nucleotides microsatellite loci; analysis of polymorphism of some SNPs; analyses of berry juice composition; investigation on the viticultural performance; compilation of sheets that summarizes the main traits of the varieties. The research proposed in this project is finalized to achieve a complete “characterization” of a great number of Italian regional genotypes and to acquire data useful either for scientific or practical purpose. Approximately 600 accessions which presumably belong to 300 varieties of Vitis vinifera subsp. Sativa have been collected. The accessions are currently grown in extra situ collections, or ‘on farm’, especially in the case of recent recovered accessions, and this has helped to clearly define the exact varietal belonging for each accession, correcting mismatches and mistakes frequently observed in germplasm collections. All data obtained, together with others previously collected by each partner, will be reversed in the “Italian Vitis Database” (http://www.vitisdb.it) already developed by the University of Pisa, managed by the “Italian Group for a Vitis database” and predisposed to receive and manage a large quantity of information. The access to the database will be free and the information presented to a public level will always be checked and certified by the principal investigator responsible for the single variety or accession and by the scientific committee, to guarantee the highest degree of accuracy. Moreover the database is not just dedicated to researchers, but it is mainly devoted to breeders, vine-growers and wine makers; this is one of the major distinctive traits among others Vitis databases freely available on line, due to the fact that one of the principal aims of this work is to create a link and a flow between research and practice in the field.
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|Data di pubblicazione:||2014|
|Autori:||IMAZIO, S.; BARBAGALLO, M.G.; BIGNAMI, C.; CRESPAN, M.; DE PALMA, L.; D'ONOFRIO, C.; MUGANU, M.; NUZZO, V.; SCHNEIDER, A.; SUNSERI, F.; NOVELLO, V.|
|Titolo:||The Italian Vitis Database: a multidisciplinary approach for a better knowledge and valorisation of Italian grape genotypes|
|Appare nelle tipologie:||Abstract in Atti di Convegno|
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