ArticleBMC plant biology2021
Construction of a high-density genetic map and detection of a major QTL of resistance to powdery mildew (Erysiphe necator Sch.) in Caucasian grapes (Vitis vinifera L.).
Article in BMC plant biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 29 citations in OpenAlex.
- Transforming viticulture through genomic innovation and integrated pest management for sustainable grape production.NPJ science of plants · 2026Review
- A comprehensive SPET-based linkage mapping for berry texture and defective seed development in grapevine.Frontiers in plant science · 2026Article
- Chromosome-level reference genome ofHorticulture research · 2025Article
- Powdery Mildew Caused by Leveillula taurica (Synonym: Phyllactinia taurica): A Global Challenge for Pepper Production.Molecular plant pathology · 2025Review
- Genotyping-by-sequencing-based high-resolution mapping reveals a single candidate gene for the grapevine veraison locus Ver1.Plant physiology · 2024Article
- A Sustainable Strategy for Marker-Assisted Selection (MAS) Applied in Grapevine (Plants (Basel, Switzerland) · 2024Article
- Novel loci associated with resistance to downy and powdery mildew in grapevine.Frontiers in plant science · 2024Article
- Basic leucine zipper geneHorticulture research · 2023Article
- Discovery and genome-guided mapping ofHorticulture research · 2023Article
- LiDAR Is Effective in Characterizing Vine Growth and Detecting Associated Genetic Loci.Plant phenomics (Washington, D.C.) · 2023Article
- Secondary and primary metabolites reveal putative resistance-associated biomarkers againstFrontiers in plant science · 2023Article
- Powdery Mildew Resistance Genes in Vines: An Opportunity to Achieve a More Sustainable Viticulture.Pathogens (Basel, Switzerland) · 2022Review
- Identification of powdery mildew resistance in wild grapevine (Vitis vinifera subsp. sylvestris Gmel Hegi) from Croatia and Bosnia and Herzegovina.Scientific reports · 2022Article
- Phenotyping for QTL identification: A case study of resistance toFrontiers in plant science · 2022Review
- Genetic changes in the genusFrontiers in plant science · 2022Review
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundVitis vinifera L. is the most cultivated grapevine species worldwide. Erysiphe necator Sch., the causal agent of grape powdery mildew, is one of the main pathogens affecting viticulture. V. vinifera has little or no genetic resistances against E. necator and the grape industry is highly dependent on agrochemicals. Some Caucasian V. vinifera accessions have been reported to be resistant to E. necator and to have no genetic relationships to known sources of resistance to powdery mildew. The main purpose of this work was the study and mapping of the resistance to E. necator in the Caucasian grapes 'Shavtsitska' and 'Tskhvedianis tetra'.
resultsThe Caucasian varieties 'Shavtsitska' and 'Tskhvedianis tetra' showed a strong partial resistance to E. necator which segregated in two cross populations: the resistant genotypes delayed and limited the pathogen mycelium growth, sporulation intensity and number of conidia generated. A total of 184 seedlings of 'Shavtsitska' x 'Glera' population were genotyped through the Genotyping by Sequencing (GBS) technology and two high-density linkage maps were developed for the cross parents. The QTL analysis revealed a major resistance locus, explaining up to 80.15% of the phenotypic variance, on 'Shavtsitska' linkage group 13, which was associated with a reduced pathogen infection as well as an enhanced plant necrotic response. The genotyping of 105 Caucasian accessions with SSR markers flanking the QTL revealed that the resistant haplotype of 'Shavtsitska' was shared by 'Tskhvedianis tetra' and a total of 25 Caucasian grape varieties, suggesting a widespread presence of this resistance in the surveyed germplasm. The uncovered QTL was mapped in the region where the Ren1 locus of resistance to E. necator, identified in the V. vinifera 'Kishmish vatkana' and related grapes of Central Asia, is located. The genetic analysis conducted revealed that the Caucasian grapes in this study exhibit a resistant haplotype different from that of Central Asian grape accessions.
conclusionsThe QTL isolated in 'Shavtsitska' and present in the Caucasian V. vinifera varieties could be a new candidate gene of resistance to E. necator to use in breeding programmes. It co-localizes with the Ren1 locus but shows a different haplotype from that of grapevines of Central Asia. We therefore consider that the Caucasian resistance locus, named Ren1.2, contains a member of a cluster of R-genes, of which the region is rich, and to be linked with, or possibly allelic, to Ren1.
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