Pathotypes and races of Pseudoperonospora cubensis: Two concepts of virulence differentiation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73626703" target="_blank" >RIV/61989592:15310/24:73626703 - isvavai.cz</a>

Result on the web

<a href="https://bsppjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/ppa.13993" target="_blank" >https://bsppjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/ppa.13993</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/ppa.13993" target="_blank" >10.1111/ppa.13993</a>

Result language

angličtina

Original language name

Pathotypes and races of Pseudoperonospora cubensis: Two concepts of virulence differentiation

Original language description

Pseudoperonospora cubensis, causal agent of cucurbit downy mildew, is a common and highly variable pathogen of cucurbit vegetables. Pathogen virulence can be considered on two different levels, that is, pathotypes and races. Pathotypes characterize the interactions between pathogen isolates and the set of genotypes represented by different species and/or genera of the host plant family. Races are characterized by the interactions between pathogen isolates and the set of genotypes (e.g., cultivars, lines, accessions) of one host species (or very closely related species). Differential sets for pathotype and/or race determination are composed of distinct (different) genotypes. Until recently, only differentiation of pathotypes was used to characterize P. cubensis. Most recent research of virulence variation in P. cubensis populations in the Czech Republic working with the Cucumis melo differential set demonstrated the existence of a large number of races of this pathogen. The differential capacity of this set was primarily created for the determination and denomination of virulence phenotypes/races of cucurbit powdery mildew (Golovinomyces orontii, Podosphaera xanthii). However, this set is also efficient for differentiating virulence phenotypes in P. cubensis. This means that one set of C. melo differential genotypes can be used for two independent plant-pathogen systems: cucurbit powdery mildew and cucurbit downy mildew. Results showed that isolates of P. cubensis developing identical virulence reaction patterns at the level of pathotype, develop different reaction patterns at the level of races and vice versa. It is demonstrated and explained that pathotypes and races are two different categories for the assessment of virulence variation, which should be clearly defined, recognized and used within international scientific and breeding communities.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Project

<a href="/en/project/QH71229" target="_blank" >QH71229: Diagnostics and methods of protection against quarantine and other economically important pathogens of fruit and leafy vegetables</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

PLANT PATHOLOGY

ISSN

0032-0862

e-ISSN

1365-3059

Volume of the periodical

73

Issue of the periodical within the volume

9

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

2537-2547

UT code for WoS article

001305651500001

EID of the result in the Scopus database

2-s2.0-85203057347