Young Scientists Meeting 2010

Development of a method for phenotyping Black Rot (Guignardia bidwellii) resistance on grapevine (Vitis_ spp.)

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Abstract

Black Rot of grapevine is caused by the Ascomycet Guignardia bidwellii. The pathogen was introduced from North America to Europe in the 19th century. Since 2002, increased effects of the disease have been noticed, causing significant yield losses in the region of Mosel and infections in all German wine-growing regions. For that reason, it is important to breed Black Rot-resistant grapevine cultivars. A method has been developed to characterize lots of vines in a fast and reliable way concerning their susceptibility. Initial data has been collected and can be used for genetic analysis (here QTL). The aim of the project is to develop a molecular marker correlating with Black Rot resistance which can be used to select juvenile plants and therefore support the breeding of resistant cultivars.

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Correspondence to Friederike Rex.

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Rex, F., Fechter, I., Hausmann, L. et al. Development of a method for phenotyping Black Rot (Guignardia bidwellii) resistance on grapevine (Vitis_ spp.). Nat Prec (2011). https://doi.org/10.1038/npre.2011.5743.1

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Keywords

  • Black Rot
  • grapevine
  • breeding