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Original Research ARTICLE Provisionally accepted The full-text will be published soon. Notify me

Front. Plant Sci. | doi: 10.3389/fpls.2019.01506

Phylogenetic relationships among wild and cultivated grapevine in Sicily: a hotspot in the middle of the Mediterranean Basin

  • 1Institute of Bioscience and Bioresources (CNR), Italy
  • 2Institute of Biosciences and BioResources (IBBR), Italian National Research Council (CNR), Italy

Grapevine (Vitis vinifera ssp. sativa) is a perennial crop especially important for wine and fruit production. The species is highly polymorphic with thousands of different varieties selected by farmers and clonally propagated. However, it is still debated whether grapevine domestication from its wild ancestor (V. vinifera ssp. sylvestris) has been a single event or rather it occurred on multiple occasions during the diffusion of its cultivation across the Mediterranean. Located in the center of the Basin, Sicily is its largest island and has served as a hotspot for all civilizations that have crossed the Mediterranean throughout history. Hundreds of unique grapevine cultivars are still cultivated in Sicily and its surrounding minor islands, though most of them are menaced by extinction. Wild grapevine is also present with isolated populations thriving along riverbanks. With the aim to evaluate the phylogenetic relationships among Sicilian varieties, and to assess the possible contribution of indigenous wild populations to the genetic makeup of cultivated grapevine, we analyzed 170 domestic cultivars and 125 wild plants, collected from 10 different populations, with 23 SSR markers. We also compared our data with published dataset from Eurasia. Results show that Sicilian wild populations are related to the cultivated Sicilian and Italian germplasm, suggesting events of introgression and/or domestication of local varieties.

Keywords: Domestication, SSR, Vitis vinifera subsp. sativa, Vitis vinifera subsp. sylvestris, grapevine

Received: 29 Jun 2019; Accepted: 29 Oct 2019.

Copyright: © 2019 De Michele, La Bella, Gristina, Fontana, Pacifico, Garfi, Motisi, Crucitti, Abbate and Carimi. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence:
Dr. Roberto De Michele, Institute of Bioscience and Bioresources (CNR), Napoli, Italy, roberto.demichele@ibbr.cnr.it
Dr. Francesco Carimi, Institute of Bioscience and Bioresources (CNR), Napoli, Italy, francesco.carimi@ibbr.cnr.it