Confirmation of the effectiveness and genetic positions of disease resistance loci in ‘Kishmish Vatkana’ (Ren1) and ‘Villard Blanc’ (Ren3 and Rpv3)

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dc.contributor.authorVeikondis, R.en_ZA
dc.contributor.authorBurger, P.en_ZA
dc.contributor.authorVermeulen, A.en_ZA
dc.contributor.authorVan Heerden, C. J.en_ZA
dc.contributor.authorPrins, R.en_ZA
dc.date.accessioned2020-02-03T12:43:58Z
dc.date.available2020-02-03T12:43:58Z
dc.date.issued2018
dc.descriptionCITATION: Veikondis, R. et al. 2018. Confirmation of the effectiveness and genetic positions of disease resistance loci in ‘Kishmish Vatkana’ (Ren1) and ‘Villard Blanc’ (Ren3 and Rpv3). South African Journal of Enology and Viticulture, 39(2):185-195, doi:10.21548/39-2-2685.
dc.descriptionThe original publication is available at https://www.journals.ac.za/index.php/sajev
dc.description.abstractThis study aimed to validate the effectiveness and to genetically characterise the fungal disease resistance genes of ‘Kishmish Vatkana’ and ‘Villard Blanc’ in South Africa using microsatellite (SSR) markers and a Quantitative Trait Loci (QTL) approach. An F1 ‘Sunred Seedless’ × ‘Kishmish Vatkana’ cross was used to generate a partial linkage map for chromosome 13 known to harbour the Ren1 powdery mildew locus of ‘Kishmish Vatkana’. The effectiveness of this locus was validated, explaining between 44.8% and 57.7% of the observed phenotypic variance. An F1 ‘Villard Blanc’ × ‘G1-6604’ cross was used to generate partial linkage maps for chromosomes 15 and 18, reported to harbour fungal resistance genes of ‘Villard Blanc’. The powdery mildew QTL (Ren3) was validated on chromosome 15 of ‘Villard Blanc’, which explained between 18.9% and 23.9% of the phenotypic variance observed. The downy mildew resistance QTL on chromosome 18 (Rpv3) of ‘Villard Blanc’ was also confirmed, and it explained between 19.1% and 21.2% of the phenotypic variance observed. This molecular information and individual sources of resistance have already been implemented in the marker-assisted selection (MAS) and gene pyramiding efforts of the table grape breeding program of the Agricultural Research Council (ARC) Infruitec-Nietvoorbij.en_ZA
dc.description.urihttps://www.journals.ac.za/index.php/sajev/article/view/2685
dc.description.versionPublisher's version
dc.format.extent11 pages
dc.identifier.citationVeikondis, R. et al. 2018. Confirmation of the effectiveness and genetic positions of disease resistance loci in ‘Kishmish Vatkana’ (Ren1) and ‘Villard Blanc’ (Ren3 and Rpv3). South African Journal of Enology and Viticulture, 39(2):185-195, doi:10.21548/39-2-2685.
dc.identifier.issn2224-7904 (online)
dc.identifier.issn0253-939X (print)
dc.identifier.otherdoi:10.21548/39-2-2685
dc.identifier.urihttp://hdl.handle.net/10019.1/107419
dc.language.isoen_ZAen_ZA
dc.publisherSouth African Society for Enology and Viticulture
dc.rights.holderAuthors retain copyright
dc.subjectPowdery mildew diseases -- South Africaen_ZA
dc.subjectFungal diseases of plants -- Geneticsen_ZA
dc.subjectGene mappingen_ZA
dc.subjectGenetics -- Statistical methodsen_ZA
dc.subjectGenotype-environment interaction -- Analysisen_ZA
dc.subjectGrapes -- Breedingen_ZA
dc.subjectKishmish Vatkana -- Genome mappingen_ZA
dc.subjectVillard Blanc -- Genome mappingen_ZA
dc.titleConfirmation of the effectiveness and genetic positions of disease resistance loci in ‘Kishmish Vatkana’ (Ren1) and ‘Villard Blanc’ (Ren3 and Rpv3)en_ZA
dc.typeArticleen_ZA
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