Use of Genetic Markers to Assess Pedigrees of Grape Cultivars and Breeding Program Selections

• John Bautista ^[2] ; Gerald S. Dangl ^[2] ; Judy Yang ^[2] ; Bruce Reisch ^[1] ; Ed Stover ^[2]
  1. [1] Cornell University

     Cornell University

     City of Ithaca, Estados Unidos

     
  2. [2] University of California
• Localización: American Journal of Enology and Viticulture, ISSN 0002-9254, Vol. 59, Nº 3, 2008, págs. 248-254
• Idioma: inglés
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• Resumen

  • In a plant breeding program, an accurate understanding of pedigrees provides useful guidance for future hybridizations. However, plant breeder records occasionally contain errors which may mislead future breeding efforts, and there is considerable value in independently testing reported pedigrees. In this project, SSR markers were used to confirm or correct pedigrees for grape varieties from the Cornell breeding program and a few key varieties used as parents. As expected, most (20 of 24) reported pedigrees were confirmed. Recognizing a heritable null allele from Ontario, at VVMD25, was necessary for parent progeny analysis of several varieties. Suffolk Red and Glenora were shown to be progeny of Black Kishmish and not Black Monukka. The advanced selection NY63.0970.07 is a hybrid of Pinot noir, not Gamay, x Chancellor. Vignoles (Ravat 51) is not descended from the reported parentage of Seibel 6905 x Pinot noir.