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QTL analysis for resistances to Colletotrichum acutatum and Phytophthora cactorum in octoploid strawberry (Fragaria x ananassa)
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- Denoyes-Rothan, B (author)
- INRA, Bordeaux, France
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- Lerceteau-Köhler, Estelle (author)
- Centre Interregional de Recherche & d'Experimentation de la Fraise, France
- Guerin, G (author)
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- Bosseur, S (author)
- Bariac, J (author)
- Martin, E (author)
- Roudeillac, P (author)
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- (creator_code:org_t)
- INTERNATIONAL SOCIETY HORTICULTURAL SCIENCE, 2004
- 2004
- English.
- In: Proceedings of the XIth Eucarpia Symposium on Fruit Breeding and Genetics, Vols 1 and 2. - : INTERNATIONAL SOCIETY HORTICULTURAL SCIENCE. ; , s. 147-151
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- Colletotrichum acutatum and Phytophthora cactorum are two of the most important pathogens of strawberry in Europe, and particularly in France. The characterization of quantitative trait loci (QTL) controlling resistances to these two pathogens would allow a better knowledge of the genetic architecture of these resistances in order to develop durable resistance. A pseudo-testcross strawberry population derived from the cross between Capitola and CF1116 was used for detecting QTLs associated with C. acutatum and P cactorum resistances. One hundred and eighty five individuals were inoculated with C. acutatum by dipping cold stored plants in a conidial suspension adjusted to 2.10(6) conidia per ml. They were also inoculated separately with P cactorum by inserting an agar disk containing mycelium into the crown. Each inoculation was conducted twice. Putative QTLs for resistance to C acutatum and P cactorum were identified by Interval Mapping (Mapmaker-QTL) using a LOD threshold of 2.
Subject headings
- LANTBRUKSVETENSKAPER -- Bioteknologi med applikationer på växter och djur -- Genetik och förädling inom lantbruksvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agricultural Biotechnology -- Genetics and Breeding in Agricultural Sciences (hsv//eng)
Keyword
- anthracnose; Interval Mapping; linkage map; polyploid; pseudo-testcross
Publication and Content Type
- ref (subject category)
- kon (subject category)
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