Recognition and genotyping of minor germplasm of Friuli Venezia Giulia revealed high diversity

Authors

  • M. Crespan
  • A. Fabbro
  • S. Giannetto
  • S. Meneghetti
  • C. Petrussi
  • F. del Zan
  • P. Sivilotti

DOI:

https://doi.org/10.5073/vitis.2011.50.21-28

Keywords:

SSR, microsatellite, minor varieties, endangered cultivars, genetic erosion

Abstract

The wealth of vine varieties that used to exist in Friuli Venezia Giulia has been progressively lost. In order to ascertain the current situation regarding vine germplasm in the region, between 2001 and 2008, a wide-ranging study was conducted of recovery, conservation and molecular characterization with microsatellite markers (SSR) of accessions of minor germplasm at risk of erosion or extinction. A total of 178 accessions were analyzed and 93 varieties identified. Of these, 44 are already registered in the Italian Catalogue, 8 have been imported and are well-known foreign varieties even if not registered in the Italian Catalogue, 38 are potentially autochthonous and of these only 15 are described or at least cited in the literature; there are no hypotheses on the remaining three. In order to obtain information on possible genetic similarities, three types of software were used to process the molecular data, but only Structure allowed the existence of two principal groupings to be hypothesized for some of the presumed Friuli autochthons: one that gravitates around ‘Prosecco’ and the other around ‘Refoscone’.

 

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Published

2015-04-01

Issue

Vol. 50 No. 1 (2011): Vitis

Section

Article

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