Articles
GENETIC ANALYSIS OF ROSE RESISTANCE GENES AND THEIR LOCALISATION IN THE ROSE GENOME
Article number
651_14
Pages
123 – 130
Language
English
Abstract
Among various fungal diseases of cultivated roses, powdery mildew and black spot are the economically most important ones in greenhouse and field production.
Resistance breeding is an increasingly important alternative to chemical plant protection.
We therefore used different approaches to characterise naturally occurring resistance to these diseases.
Through extensive genetic analysis with monoconidial isolates of both pathogens in segregating populations three dominant resistance genes could be detected.
Using molecular markers these loci could be mapped in the rose genome and in one case tagged on a BAC contig.
We also describe the evaluation of additional loci, harbouring putative resistance genes, by mapping rose resistance gene analogues (RGAs) onto the rose chromosome map and in relation to known resistance genes.
Resistance breeding is an increasingly important alternative to chemical plant protection.
We therefore used different approaches to characterise naturally occurring resistance to these diseases.
Through extensive genetic analysis with monoconidial isolates of both pathogens in segregating populations three dominant resistance genes could be detected.
Using molecular markers these loci could be mapped in the rose genome and in one case tagged on a BAC contig.
We also describe the evaluation of additional loci, harbouring putative resistance genes, by mapping rose resistance gene analogues (RGAs) onto the rose chromosome map and in relation to known resistance genes.
Publication
Authors
A. Hattendorf, M. Linde, L. Mattiesch, T. Debener, H. Kaufmann
Keywords
Molecular marker, BSA, black spot, powdery mildew, BAC-library, RGA
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