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
Proceedings: Proceedings of the Thirteenth Eucarpia Symposium on Fruit Breeding and Genetics
Volume(Issue) : 976
Conference details: XIII Eucarpia Symposium on Fruit Breeding and Genetics, Warsaw, Poland, September 11–15, 2011
Editors of the parent work: Evens, KM
Lata, B
Kellerhals, M
Publisher / Ed. Institution : International Society for Horticultural Science (ISHS)
Publisher / Ed. Institution: Leuven
Issue Date: 2013
License (according to publishing contract) : Licence according to publishing contract
Series : Acta horticulturae : technical communications of ISHS
Type of review: Peer review (Publication)
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.
Departement: Life Sciences and Facility Management
Organisational Unit: Institute of Natural Resource Sciences (IUNR)
Publication type: Conference Paper
DOI : 10.17660/ActaHortic.2013.976.82
ISBN: 976 573-575
ISSN: 0567-7572
URI: https://digitalcollection.zhaw.ch/handle/11475/4122
Appears in Collections:Publikationen Life Sciences und Facility Management

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