Publication type: Conference paper
Type of review: Peer review (publication)
Title: A candidate gene of Malus x robusta 5 for breeding towards fire blight resistance
Authors: Fahrentrapp, Johannes
Broggini, GAL
Peil, A
Kellerhals, M
Malnoy, M
Richter, K
Gessler, Cesare
DOI: 10.17660/ActaHortic.2013.976.82
Proceedings: Proceedings of the Thirteenth Eucarpia Symposium on Fruit Breeding and Genetics
Editors of the parent work: Evens, KM
Lata, B
Kellerhals, M
Volume(Issue): 976
Conference details: XIII Eucarpia Symposium on Fruit Breeding and Genetics, Warsaw, Poland, 11-15 September 2011
Issue Date: 2013
Series: Acta Horticulturae
Publisher / Ed. Institution: International Society for Horticultural Science
Publisher / Ed. Institution: Leuven
ISBN: 976 573-575
ISSN: 0567-7572
Language: English
Subjects: Resistance gene; Apple; Weinbau; Gene mapping
Subject (DDC): 634: Orchards, fruits and forestry
Abstract: Fire blight (FB) is the most important bacterial disease in apple and pear orchards. The disease is caused by Erwinia amylovora and difficult to control because the application of antibiotics is either banned or undesired in many apple production areas. Current breeding programs introgress strong resistance from wild sources such as Malus × robusta 5 (MR5). Previous work attributed the resistance derived from this accession to a QTL located on top of linkage group 3. We enriched this region with molecular markers and isolated the region by means of a genomic library. The genomic sequence encompassed by two flanking markers was analysed in silico and led to the identification of a gene with structural homology to known bacterial resistance genes in model plants. It is differentially expressed in fire blight resistant and susceptible plants, respectively. We therefore indicate it as candidate fire blight resistance gene MR5.
Fulltext version: Published version
License (according to publishing contract): Licence according to publishing contract
Departement: Life Sciences and Facility Management
Organisational Unit: Institute of Natural Resource Sciences (IUNR)
Appears in collections:Publikationen Life Sciences und Facility Management

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