Genotypic and phenotypic characterization of Puccinia horiana, a quarantine rust pathogen on Chrysanthemum

Mathias De Backer; Martine Maes; Erik Van Bockstaele; Theo Van der Lee; Kurt Heungens

Genotypic and phenotypic characterization of Puccinia horiana, a quarantine rust pathogen on Chrysanthemum

Mathias De Backer
, Martine Maes
, Erik Van Bockstaele
, Theo Van der Lee
, Kurt Heungens

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Research output: Chapter in Book/Report/Conference proceeding › C3: Conference Abstract

Abstract

Puccinia horiana is one of the most important diseases in chrysanthemum production. Phenotypic characterization of a worldwide collection of isolates via controlled inoculation experiments on a set of differential cultivars revealed the presence of pathotypes and at least seven avirulence genes. Genotypic characterization involved the development and application of 25 differential SNP markers. Genotypic diversity was strongly related to geographic origin, while evidence of sporadic large distance international spread as well as recombination were also observed. Although pathotype-based diversity was larger than SNP-based diversity, the most virulent pathotypes could be identified based on their SNP profile. This allows the use of the genotyping technique in quarantine monitoring.

Original language	English
Title of host publication	17th Symposium on Applied Biological Sciences
Publication date	10-Feb-2012
Publication status	Published - 10-Feb-2012
Event	17th PhD Symposium on Applied Biological Sciences (2012) - Leuven, Belgium Duration: 10-Feb-2012 → 10-Feb-2012

Cite this

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title = "Genotypic and phenotypic characterization of Puccinia horiana, a quarantine rust pathogen on Chrysanthemum",

abstract = "Puccinia horiana is one of the most important diseases in chrysanthemum production. Phenotypic characterization of a worldwide collection of isolates via controlled inoculation experiments on a set of differential cultivars revealed the presence of pathotypes and at least seven avirulence genes. Genotypic characterization involved the development and application of 25 differential SNP markers. Genotypic diversity was strongly related to geographic origin, while evidence of sporadic large distance international spread as well as recombination were also observed. Although pathotype-based diversity was larger than SNP-based diversity, the most virulent pathotypes could be identified based on their SNP profile. This allows the use of the genotyping technique in quarantine monitoring.",

author = "\{De Backer\}, Mathias and Martine Maes and \{Van Bockstaele\}, Erik and \{Van der Lee\}, Theo and Kurt Heungens",

year = "2012",

month = feb,

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language = "English",

booktitle = "17th Symposium on Applied Biological Sciences",

note = "17th PhD Symposium on Applied Biological Sciences (2012) ; Conference date: 10-02-2012 Through 10-02-2012",

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TY - CHAP

T1 - Genotypic and phenotypic characterization of Puccinia horiana, a quarantine rust pathogen on Chrysanthemum

AU - De Backer, Mathias

AU - Maes, Martine

AU - Van Bockstaele, Erik

AU - Van der Lee, Theo

AU - Heungens, Kurt

PY - 2012/2/10

Y1 - 2012/2/10

N2 - Puccinia horiana is one of the most important diseases in chrysanthemum production. Phenotypic characterization of a worldwide collection of isolates via controlled inoculation experiments on a set of differential cultivars revealed the presence of pathotypes and at least seven avirulence genes. Genotypic characterization involved the development and application of 25 differential SNP markers. Genotypic diversity was strongly related to geographic origin, while evidence of sporadic large distance international spread as well as recombination were also observed. Although pathotype-based diversity was larger than SNP-based diversity, the most virulent pathotypes could be identified based on their SNP profile. This allows the use of the genotyping technique in quarantine monitoring.

AB - Puccinia horiana is one of the most important diseases in chrysanthemum production. Phenotypic characterization of a worldwide collection of isolates via controlled inoculation experiments on a set of differential cultivars revealed the presence of pathotypes and at least seven avirulence genes. Genotypic characterization involved the development and application of 25 differential SNP markers. Genotypic diversity was strongly related to geographic origin, while evidence of sporadic large distance international spread as well as recombination were also observed. Although pathotype-based diversity was larger than SNP-based diversity, the most virulent pathotypes could be identified based on their SNP profile. This allows the use of the genotyping technique in quarantine monitoring.

M3 - C3: Conference Abstract

BT - 17th Symposium on Applied Biological Sciences

T2 - 17th PhD Symposium on Applied Biological Sciences (2012)

Y2 - 10 February 2012 through 10 February 2012

ER -