Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Pathotypic diversity of Hyaloperonospora brassicae collected from Brassica oleracea

Tools
- Tools
+ Tools

Coelho, Paula S., Vicente, Joana G., Monteiro, António A. and Holub, E. B. (2012) Pathotypic diversity of Hyaloperonospora brassicae collected from Brassica oleracea. European Journal of Plant Pathology, Vol.134 (No.4). pp. 763-771. doi:10.1007/s10658-012-0052-z ISSN 0929-1873.

[img]
Preview
Text
WRAP_Vicente_Pathotype diversity of Boleracea DM EJPP_Coelho et al July 2012.pdf - Accepted Version

Download (447Kb) | Preview
Official URL: http://dx.doi.org/10.1007/s10658-012-0052-z

Request Changes to record.

Abstract

Downy mildew caused by Hyaloperonospora brassicae is an economically destructive disease of brassica crops in many growing regions throughout the world. Specialised pathogenicity of downy mildews from different Brassica species and closely related ornamental or wild relatives has been described from host range studies. Pathotypic variation amongst Hyaloperonospora brassicae isolates from Brassica oleracea has also been described; however, a standard set of B. oleracea lines that could enable reproducible classification of H. brassicae pathotypes was poorly developed. For this purpose, we examined the use of eight genetically refined host lines derived from our previous collaborative work on downy mildew resistance as a differential set to characterise pathotypes in the European population of H. brassicae. Interaction phenotypes for each combination of isolate and host line were assessed following drop inoculation of cotyledons and a spectrum of seven phenotypes was observed based on the level of sporulation on cotyledons and visible host responses. Two host lines were resistant or moderately resistant to the entire collection of isolates, and another was universally susceptible. Five lines showed differential responses to the H. brassicae isolates. A minimum of six pathotypes and five major effect resistance genes are proposed to explain all of the observed interaction phenotypes. The B. oleracea lines from this study can be useful for monitoring pathotype frequencies in H. brassicae populations in the same or other vegetable growing regions, and to assess the potential durability of disease control from different combinations of the predicted downy mildew resistance genes.

Item Type: Journal Article
Subjects: S Agriculture > SB Plant culture
Divisions: Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- )
Library of Congress Subject Headings (LCSH): Downy mildew diseases -- Pathogenesis, Cole crops -- Diseases and pests, Cole crops -- Genetics
Journal or Publication Title: European Journal of Plant Pathology
Publisher: Springer
ISSN: 0929-1873
Official Date: December 2012
Dates:
DateEvent
December 2012Published
Volume: Vol.134
Number: No.4
Page Range: pp. 763-771
DOI: 10.1007/s10658-012-0052-z
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 23 December 2015
Date of first compliant Open Access: 23 December 2015
Funder: Fundação para a Ciência e a Tecnologia (FCT), Great Britain. Dept. for Environment, Food & Rural Affairs (DEFRA)
Grant number: PTDC/AGR-GPL/70135/2006 (FCT), HH37232SX (DEFRA)

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us