31.03.2021 | Research news
This report presents molecular genotyping and race typing results from the GRRC based on samples of rust infected wheat and triticale collected in 2020 and across four continents, i.e., Europe, Asia, Africa and South America.
13.03.2020 | Science and Technology
This report presents molecular genotyping and race typing results from the GRRC based on samples of rust infected wheat and triticale collected in 2018 and 2019 across four continents, i.e., Europe, Asia, Africa and South America.
21.02.2019 | Research news
This report presents results on Simple Sequence Repeat (SSR) genotyping of samples of Puccinia striiformis from wheat and triticale collected across four continents in 2018, with reference to 2017 results.
07.02.2019 | Research news
In a commentary in Communication Biology, published 4th February 2019, scientists evaluate the risks of re-emergence of wheat stem rust in Europe. In general, the wheat rust “problems” in Europe have been addressed via multiple national initiatives, but in 2018, a new EU H2020 research and innovation program was launched, dealing with all three…
09.02.2018 |
In 2017, Argentina faced the worst epidemics of yellow rust since the 1930s. Based on samples collected at 22 epidemic sites in September, the Global Rust Reference Center (GRRC) has identified at least three distinct yellow rust genotypes. Two of these were identical to genotypes first detected in Europe and North Africa in 2015-16.
09.02.2018 |
Unusual and severe epidemics of yellow rust were observed on several continents in 2017. In a number of cases, epidemic sites at different continents were inter-related by prevalence of genetically identical yellow rust genotypes and races.
Please find the guideline: "Sample collection procedure for GRRC race analyses of wheat rusts 2016" here
Samples of stem rust infected wheat from Russia, 2016. Released August 2017
Samples of stem rust infected wheat from Italy. November 2016
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
Please find reports of the Puccinia striiformis genotyping and race analyses activities at GRRC 2010 - 2019:
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.
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.
The project is funded by Innovation Fund Denmark
Duration: 2015-2020. Research Education: 2 ph.d. and 2 postdocs