engleski

Comparison of presumed synonyms Borgonja crna and Gamay noir (V. vinifera L.) using ampelographic descriptors and genetic SSR markers

Borgonja crna is grapevine cultivar (variety) grown in Croatia only on peninsula Istria (north Croatian coast) and has regional importance. Borgonja crna has superior quality in comparison to the other black grapevine cultivars grown in that region. All the available literature data suggests that Borgonja and Gamay noir (Gamay Beaujoilais) could be synonyms for the same variety. This assumption is based on the similarity of phenotype. For that reason even producers started to plant Gamay noir due to the lack of planting material of Borgonja crna. The aim of this work was to examine whether the Borgonja crna and Gamay noir are identical or two different cultivars. In the year 2004 various ampelographic and genetic analyzes were conducted. As a part of ampelographic analysis selected OIV descriptors, uvometry and philometry were applied. Jung leaves from the selected vines were collected, liophilised and DNA extraction was performed according to Doyle and Doyle (Focus, 1990.). Microsatellite markers (SSR) were chosen for plant genotyping. According to the project GENRES 081, 6 core SSR loci and three additional were used. The results shown that, although morphological similar, Borgonja crna and Gamay Beaujolais have different genetic profiles and cannot be considered as synonyms.

grapevine; Borgonja; descriptor; SSR marker

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