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| Saifert,Luciano; Sánchez-Mora,Fernando David; Assumpção,Wilson Taybar; Zanghelini,Jean Alberto; Giacometti,Renan; Novak,Eduardo Irineu; Vesco,Lírio Luiz Dal; Nodari,Rubens Onofre; Eibach,Rudolf; Welter,Leocir José. |
| Abstract: The objective of this work was to use a marker-assisted selection for pyramiding the resistance loci Rpv1 and Rpv3.1 in grapevine (Vitis vinifera), and to evaluate their conferred resistance against Brazilian downy mildew (Plasmopara viticola) isolates. A progeny of 23 plants, segregating for the two resistance loci, was obtained by the cross between the Gf 2000-305-122 and Gf.Ga-52-42 genotypes. The progeny was genotyped with four microsatellite markers and phenotyped for resistance to P. viticola using a bioassay with leaf discs. Six plants containing the Rpv1 and Rpv3.1 pyramided loci were identified by the molecular analysis. Plants harboring the Rpv1 + Rpv3.1, Rpv3.1, and Rpv1 loci showed 12.8, 30.0, and 33.1 sporangiophores per leaf disc,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plasmopara viticola; Vitis vinifera; Enological quality; Genetic resistance to disease; Grapevine breeding; Quantitative trait loci. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000500602 |
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