GRRC annual report 2020
News
02.02.2017 |
New races caused epidemics of yellow rust in Europe, East Africa and Central Asia in 2016
Two significant new races having unique yellow rust genotypes were detected across wide areas in Europe/North Africa and East Africa/Central Asia, respectively. One new race was detected in Morocco, Italy and countries in Northern Europe. Another new race of a unique genotype was prevalent in epidemics in Ethiopia, Uzbekistan and Afghanistan.
02.02.2017 | Research news
CAUTION: Risk of wheat stem rust in Mediterranean Basin in the forthcoming 2017 crop season following outbreaks on Sicily in 2016
Results of extensive lab tests of samples of stem rust have shown that the 2016 stem rust epidemics in Sicily were caused by a new, highly virulent variant of race TTTTF. The samples were collected during serious and unusual outbreaks of wheat stem rust on both durum wheat and bread wheat in Sicily during April - June 2016.
07.10.2016 |
The Warrior(-) race variant prevails in Europe
After the establishment of the Warrior race across Europe in 2011, the Warrior(-) variant now prevail in most European countries.
29.03.2016 |
Molecular markers for tracking the origin and worldwide distribution of invasive strains of Puccinia striiformis
New scientific article - Ecology and Evolution, March 2016
29.03.2016 |
Evaluation of Spray and Point Inoculation Methods for the Phenotyping of Puccinia striiformis on Wheat
New scientific article - Plant Disease, March 2016
30.01.2016 |
The “Stubbs collection” has resolved worldwide diversity of the yellow rust fungus in the past
Two new articles from GRRC -The first is a recovery and a virulence phenotyping study of old isolates from the collection. The second is a SSR marker based study of the worldwide population structure of P. striiformis in the past
ARD TV: Pilzbefall von Weizen. Dem gefährlichen Schwarzrost auf der Spur. BR Fernsehen, 12 Min
Race analyses
Submission of wheat rust samples for diagnosis
Please find the guideline: "Sample collection procedure for GRRC race analyses of wheat rusts 2016" here
Race analysis of Stem rust at GRRC
Please find GRRC reports:
Samples of stem rust infected wheat from Russia, 2016. Released August 2017
Samples of stem rust infected wheat from Italy. November 2016
Related GRRC news:
Disease notes:
Emergence of Virulence to SrTmp in the Ug99 Race Group of Wheat Stem Rust, Puccinia graminis f. sp. tritici, in Africa / Plant Disease February 2016, Volume 100, Number 2, Page 522
First Report of the Ug99 Race Group of Wheat Stem Rust, Puccinia graminis f. sp. tritici, in Egypt in 2014 / Plant Disease April 2016, Volume 100, Number 4, Page 863
GRRC annual reports on race phenotyping and genotyping
Please find reports of the Puccinia striiformis genotyping and race analyses activities at GRRC 2010 - 2019:
- Report of stem and yellow rust genotyping 2020 new 31 March 2021
- Report of stem and yellow rust genotyping 2019
- Summary of Puccinia striiformis genotyping 2018
- Summary of Puccinia striiformis race analysis 2017
- Summary of Puccinia striiformis race analysis 2016
- Summary of Puccinia Striiformis race analysis 2015
- Summary of Puccinia Striiformis race analysis 2014
- Summary of Puccinia Striiformis race analysis 2013
- Summary of Puccinia striiformis isolate pathotyping 2012
- Summary of Puccinia striiformis isolate pathotyping 2011
- Summary of Puccinia striiformis isolate pathotyping 2010
Definitions of genetic groups and races
Sampling site focus in 2019 will be selected by staff at ICARDA, CIMMYT and NARCs in Africa and Asia, with a focus on high risk epidemic areas. Since 2011, GRRC also accepted samples of stem rust (Puccinia graminis tritici) as agreed upon with the Borlaug Global Rust Initiative and the phase II of the Durable Rust Resistance in Wheat Project (DRRW) and now continued in the Delivering Genetic Gain in Wheat project (DGGW), 2016-2020. GRRC can only process samples according to available space and resources at any time, and we cannot guarantee to process all samples received.
MULTIRES: Multiple disease resistance in wheat
The overall goal of this public-private partnership is to improve wheat productivity by reducing losses due to plant disease in conventional and organic farming systems and the dependence of fungicide sprays in general. Part of the solution is the implementation of EU Directive 2009/128/EC (“IPM directive”), which may be a major challenge at the private farm level unless high-yielding, resistant crop varieties are available. This project will utilize two different strategies for developing disease resistant wheat:
Multi-parent advanced generation inter-cross (MAGIC) and
Nested association mapping (NAM).
New phenotyping methods using microscopy will be applied on new multi-resistant wheat lines emerging from the project in order to assess and evaluate resistance mechanisms and expected ‘durability’ of identified resistance.
Funding
The project is funded by Innovation Fund Denmark
Duration: 2015-2020. Research Education: 2 ph.d. and 2 postdocs
