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Am. J. Enol. Vitic. 58:4:526-529 (2007)
Copyright © 2007 by the American Society for Enology and Viticulture.
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Research Note

Assessing Genetic Variation among Pinot noir (Vitis vinifera L.) Clones with AFLP Markers

Rolf Blaich1, Jochen Konradi1, Ernst Rühl2 and Astrid Forneck1,3,*

1 Institute for Special Crop Cultivation and Crop Physiology, Department of Viticulture, University of Hohenheim, D-70593 Stuttgart, Germany; 2 Geisenheim Research Centre, Section for Grapevine Breeding and Grafting, von-Lade-Strasse 1, D-65366 Geisenheim, Germany

* Corresponding author (email: astrid.forneck{at}boku.ac.at)

3 [present address] Institute of Horticulture and Viticulture, Department of Applied Plant Sciences and Plant Biotechnology, University of Natural Resources and Applied Plant Sciences, A-1190 Vienna, Austria.

The clonal variation among 70 Pinot noir (V. vinifera L.) clones displaying various phenotypes (cluster architecture, maturity, canopy growth) was studied implementing 178 AFLP-markers in a replicated design. A "most common" genotype, identically fingerprinted, could be assessed comprising 17 (25.7%) of the Pinot clones tested. The largest group of 48 clones (68.6%) was analyzed within the range of 99% genetic similarity compared with the main identical group. A group of 24 clones could be situated farther than 1% differentiation: among 99.1 to 94.0% genetic similarity. No phenotype-specific marker for cluster architecture could be identified within the range of the chosen markers, nor could a common geographical origin be determined for the clones under study. It appears that Pinot noir displays both intra- and interclonal variation.

Key words: clone, grapevine, Vitis vinifera, Pinot noir, genetic variation






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Copyright © 2007 by the American Society for Enology and Viticulture.