QTL analysis of resistance to bacterial wilt caused by Ralstonia solanacearum in potato
Copyright © 2019 by JAPANESE SOCIETY OF BREEDING.
| Veröffentlicht in: | Breeding science. - 1998. - 69(2019), 4 vom: 21. Dez., Seite 592-600 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2019
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| Zugriff auf das übergeordnete Werk: | Breeding science |
| Schlagworte: | Journal Article 808 potato SNP array Infinium 12 Ralstonia solanacearum bacterial wilt potato resistance QTLs |
| Zusammenfassung: | Copyright © 2019 by JAPANESE SOCIETY OF BREEDING. Ralstonia solanacearum causes bacterial wilt, a soil-borne disease and one of the most important maladies of potato and other Solanaceae crops. We analyzed the resistance of a potato clone to bacterial wilt by quantitative trait locus (QTL) analysis. A resistant diploid potato clone 10-03-30 was crossed with a susceptible diploid clone F1-1 to generate a diploid, two-way pseudo-testcross F1 population comprised of 94 genotypes. Dense linkage maps, containing 4,139 single nucleotide polymorphism markers with an average distance of 0.6 and 0.3 cM between markers, were constructed for both parents. The resistance level was evaluated by in vitro inoculation test with R. solanacearum (phylotype I/biovar 4/race 1). Five QTLs (qBWR-1 to -5) were identified on potato chromosomes 1, 3, 7, 10, and 11, and they explained 9.3-18.4% of the phenotypic variance. The resistant parent had resistant alleles in qBWR-2, qBWR-3, and qBWR-4 and susceptible alleles in qBWR-1 and qBWR-5. Accumulation of the resistant alleles in all five QTLs increased the level of resistance compared with that of the resistant parent. This is the first study to identify novel QTLs for bacterial wilt resistance in potato by using genome-wide markers |
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| Beschreibung: | Date Revised 29.09.2020 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
| ISSN: | 1344-7610 |
| DOI: | 10.1270/jsbbs.19059 |