ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2018
Improved genetic resolution for linkage mapping of resistance to potato wart in monoparental dihaploids with potential diagnostic value in tetraploid potato varieties.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 16 citations in OpenAlex.
- Marker-Assisted Selection for Disease Resistance in Potato Breeding in the Ural Region of Russia (2018-2025): Comprehensive Genotyping and Validation of Key Resistance Markers.International journal of molecular sciences · 2026Article
- Synchytrium endobioticum, the potato wart disease pathogen.Molecular plant pathology · 2022Review
- QTL-Seq Analysis for Identification of Resistance Loci to Bacterial Canker in Tomato.Frontiers in plant science · 2021Article
- A Hitchhiker's guide to the potato wart disease resistance galaxy.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- Development of diagnostic molecular markers for marker-assisted breeding against bacterial wilt in tomato.Breeding science · 2020Article
- Distribution of P1(D1) wart disease resistance in potato germplasm and GWAS identification of haplotype-specific SNP markers.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- Comparative Subsequence Sets Analysis (CoSSA) is a robust approach to identify haplotype specific SNPs; mapping and pedigree analysis of a potato wart disease resistance genePlant methods · 2019Article
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Authors and funding
10 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
key messageWe achieved improved mapping resolution of the major wart resistance locus Xla-TNL containing also Sen1 in a dihaploid population using SNP data and developed additional markers with diagnostic value in tetraploid varieties. We analyzed a segregating monoparental dihaploid potato population comprising 215 genotypes derived from a tetraploid variety that is highly resistant to Synchytrium endobioticum pathotypes 18 and 6. The clear bimodal segregation for both pathotypes indicated that a major dominant resistance factor in a simplex allele configuration was present in the tetraploid donor genotype. Compared to that in previous analyses of the same tetraploid donor in conventional crosses with susceptible tetraploid genotypes, a segregation pattern with a reduced genetic complexity of resistance in dihaploids was observed here. Using the 12.8 k SolCAP SNP array, we mapped a resistance locus to the Xla-TNL region containing also Sen1 on potato chromosome 11. The improved mapping resolution provided by the monoparental dihaploids allowed for the localization of the genes responsible for the resistance to both pathotypes in an interval spanning less than 800 kbp on the reference genome. Furthermore, we identified eight molecular markers segregating without recombination to pathotype 18 and pathotype 6 resistance. Also, two developed markers display improved diagnostic properties in an independent panel of tetraploid varieties. Overall, our data provide the highest resolution mapping of wart resistance genes at the Xla-TNL locus thus far.
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