Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 487987
Title Scab resistance in ‘Geneva’ apple is conditioned by a resistance gene cluster with complex genetic control
Author(s) Bastiaanse, H.; Bassett, H.C.M.; Kirk, C.; Gardiner, S.E.; Deng, C.; Groenwold, R.; Chagné, D.; Bus, V.G.M.
Source Molecular Plant Pathology 17 (2016)2. - ISSN 1464-6722 - p. 159 - 172.
DOI https://doi.org/10.1111/mpp.12269
Department(s) PBR Bio-based Economy
Publication type Refereed Article in a scientific journal
Publication year 2016
Abstract Apple scab, caused by the fungal pathogen Venturia inaequalis, is one of the most severe diseases of apple worldwide. It is the most studied plant-pathogen interaction involving a woody species using modern genetic, genomic, proteomic and bioinformatic approaches in both species. Although ‘Geneva’ apple was recognised long ago as a potential source of resistance to scab, this resistance has not been previously characterised. Differential interactions between various monoconidial isolates of V. inaequalis and six segregating F1 and F2 populations indicate the presence of at least five loci governing the resistance in ‘Geneva’. The 17 chromosomes of apple were screened using genotyping-by-sequencing, as well as single marker mapping to position loci controlling the V. inaequalis resistance on linkage group 4. Next, we fine-mapped a 5 cM region containing five loci conferring both dominant and recessive scab resistance to the distal end of the linkage group. This region corresponds to 2.2 Mbp (from 20.3 to 22.5 Mbp) on the physical map of ‘Golden Delicious’ containing nine candidate NBS-LRR resistance genes. This study increases our understanding of the complex genetic basis of apple scab resistance conferred by ‘Geneva’ as well as the gene-for-gene (GfG) relationships between the effector genes in the pathogen and resistance genes in the host.
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