ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2024
Characterisation and mapping of a Globodera pallida resistance derived from the wild potato species Solanum spegazzinii.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 6 citations in OpenAlex.
- Quantitative trait loci for Globodera pallida resistance derived from wild potato species Solanum gourlayi.Journal of applied genetics · 2026Article
- A chromosome-level genome assembly of Solanum brevicaule (PI 473011) Y1-5, a wild potato relative with robust resistance to potato cyst nematodes.The plant genome · 2026Article
- The potato cyst nematode Globodera pallida overcomes major potato resistance through selection on standing variation at a single locus.The New phytologist · 2026Article
- Getting help from the extended family: identification and genetic characterisation of novel resistance toMolecular breeding : new strategies in plant improvement · 2025Article
- Identification by GWAS of marker haplotypes relevant to breed potato for Globodera pallida resistance.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
key messageA new resistance locus acting against the potato cyst nematode Globodera pallida was mapped to chromosome VI in the diploid wild potato species Solanum spegazzinii CPC 7195. The potato cyst nematodes (PCN) Globodera pallida and Globodera rostochiensis are economically important potato pests in almost all regions where potato is grown. One important management strategy involves deployment through introgression breeding into modern cultivars of new sources of naturally occurring resistance from wild potato species. We describe a new source of resistance to G. pallida from wild potato germplasm. The diploid species Solanum spegazzinii Bitter accession CPC 7195 shows resistance to G. pallida pathotypes Pa1 and Pa2/3. A cross and first backcross of S. spegazzinii with Solanum tuberosum Group Phureja cultivar Mayan Gold were performed, and the level of resistance to G. pallida Pa2/3 was determined in progeny clones. Bulk-segregant analysis (BSA) using generic mapping enrichment sequencing (GenSeq) and genotyping-by-sequencing were performed to identify single-nucleotide polymorphisms (SNPs) that are genetically linked to the resistance, using S. tuberosum Group Phureja clone DM1-3 516 R44 as a reference genome. These SNPs were converted into allele-specific PCR assays, and the resistance was mapped to an interval of roughly 118 kb on chromosome VI. This newly identified resistance, which we call Gpa VI
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