Publication type: Conference paper
Type of review: Peer review (publication)
Title: QTL mapping for resistance to fire blight using several Erwinia amylovora strains resulting in different host-pathogen interactions
Authors: Wöhner, T
Vogt, I
Peil, A
Flachowsky, H
Hanke, M-V
Richter, K
Gessler, Cesare
Broggini, GAL
Fahrentrapp, Johannes
Garcia-Libreros, T
DOI: 10.17660/ActaHortic.2013.976.72
Proceedings: Proceeding of the XIIIth EUCARPIA Symposium on Fruit Breeding and Genetics
Editors of the parent work: Evans, K.M.
Lata, B.
Kellerhals, M.
Volume(Issue): 976
Page(s): 509
Pages to: 512
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: 978-90-66051-19-5
ISSN: 0567-7572
Language: English
Subjects: Interval mapping; Weinbau; Deletion mutant strain; AvrRpt2Ea
Subject (DDC): 634: Orchards, fruits and forestry
Abstract: QTL mapping of fire blight resistance in apple is an effective tool to determine associations between regions in the genome of apple and resistance to the bacterial disease. Several wild Malus accessions of different apple species have been identified as resistant to fire blight making them valuable as donors for the introgression of resistance to the cultivated apple Malus × domestica Borkh. Resistant accessions of the wild species M. baccata, M. fusca and M. × robusta 5 (Mr5) were inoculated with the wild type strain Ea1189 and the AvrRpt2EA deletion mutant (pZYRKD3-1). While M. baccata and M. fusca showed no symptoms to pZYRKD3-1, the resistance of M. × robusta 5 was overcome by pZYRKD3-1 with an average necrosis length of 52% respectively. Inoculation of the mapping population ‘Idared’ × Mr5 with the strain Ea 1189 results in the confirmation of the QTL on LG 3 in Mr5; this QTL completely broke down after inoculation with pZYRKD3-1, but two minor QTLs on LG 7 and LG 11 were detected.
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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