Author:
Schneider A.,Ruffa P.,Tumino G.,Fontana M.,Boccacci P.,Raimondi S.
Abstract
AbstractResearch efforts on genomic structure and ecology of wild populations of Vitis vinifera L. offer insights on grape domestication processes and on the assortment evolution of the cultivated forms. Attention is also paid to the origin of traditional, long-cultivated varieties, often producing renowned and valuable wines. The genetic relationships between 283 Vitis vinifera cultivated varieties (subsp. sativa) and 65 individuals from 9 populations of the sylvestris subspecies mainly from northern Italy were explored by means of molecular markers (27 nuclear and 4 chloroplastic microsatellites). Several episodes of contamination of the wild germplasm by the pollen of specific grape cultivars were detected, implying concern for maintaining the purity of the wild form. At the same time, events of introgression from the wild subspecies resulted playing a crucial role in the emergence of several cultivated varieties with a clear admixed genome ancestry sativa-sylvestris. These included Lambruscos originated from the flat areas crossed by the Po and Adige rivers in northern Italy, while other cultivars still called Lambrusco but typical of hilly areas did not show the same admixed genome. Historical and ecological evidences suggesting an adaptative recent post-domestication process in the origin of several Italian Lambruscos are discussed.
Publisher
Springer Science and Business Media LLC
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