期刊
THEORETICAL AND APPLIED GENETICS
卷 106, 期 8, 页码 1517-1523出版社
SPRINGER
DOI: 10.1007/s00122-003-1211-6
关键词
Solanum tuberosum; Potato cyst nematode; QTL; Resistance; Genetic mapping
资金
- EU [FAIR PL97-3565]
A F1 diploid population between Solanum tuberosum 2x and the wild Solanum spegazzinii was studied. It segregated for resistance against the potato cyst nematode Globodera pallida derived from the wild species. The inheritance had a quantitative nature. Linkage maps of AFLP and RFLP markers were constructed for both parents. Three QTLs were identified on the map of the resistant parent on chromosomes V, VI and XII, respectively. The first one had a major effect and explained more than 50% of the total variance of resistance. It is located in a cluster of resistance genes and may be the same locus as Gpa which has been described formerly. The two others explained about 20% of the total variance each. The QTL on chromosome XII is also in a cluster of resistance genes, and in an orthologous position with resistance genes against nematodes in tomato and pepper.
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