Mapping of resistance to the potato cyst nematode Globodera rostochiensis from the wild potato species Solanum vernei |
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| Authors: | Jeanne M E Jacobs Herman J van Eck Karin Horsman Paul F P Arens Brigitte Verkerk-Bakker Evert Jacobsen Andy Pereira Willem J Stiekema |
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| Institution: | (1) Department of Molecular Biology, DLO-Centre for Plant Breeding and Reproduction Research (CPRO-DLO), P.O. Box 16, NL-6700 AA Wageningen, Netherlands;(2) Department of Plant Breeding, Wageningen Agricultural University, P.O. Box 386, NL-6700 AJ Wageningen, Netherlands |
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| Abstract: | A population of diploid potato (Solanum tuberosum) was used for the genetic analysis and mapping of a locus for resistance to the potato cyst nematode Globodera rostochiensis, introgressed from the wild potato species Solanum vernei. Resistance tests of 108 genotypes of a F1 population revealed the presence of a single locus with a dominant allele for resistance to G. rostochiensis pathotype Ro1. This locus, designated GroV1, was located on chromosome 5 with RFLP markers. Fine-mapping was performed with RAPD and SCAR markers. The GroV1 locus was found in the same region of the potato genome as the S. tuberosum ssp. andigena H1 nematode resistance locus. Both resistance loci could not excluded to be allelic. The identification of markers flanking the GroV1 locus offers a valuable strategy for marker-assisted selection for introgression of this nematode resistance.Abbreviations BSA
bulked segregant analysis
- RAPD
random-amplified polymorphic DNA
- RFLP
restriction fragment length polymorphism
- SCAR
sequence-characterized amplified region |
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| Keywords: | BSA Globodera rostochiensis potato RFLP SCAR Solanum vernei |
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