GRRC annual report released
News
2016.03.29 | Research news
Evaluation of Spray and Point Inoculation Methods for the Phenotyping of Puccinia striiformis on Wheat
New scientific article - Plant Disease, March 2016
2016.01.30 | Research news
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
2015.07.03 | Research news
Replacement of the European wheat yellow rust population by new races from the centre of diversity in the near-Himalayan region
New scientific article - Plant Pathology April 2016
2015.01.20 | Research news
New cereal varieties will need less pesticide
Scientists from Aarhus University and commercial breeders and leading foreign research institutions will in partnership develop new varieties of wheat that are resistant to a number of devastating fungal diseases. The project has been granted 17 million Danish kroner from Innovation Fund Denmark.
2014.08.20 | Research news
New article: Sexual structures and recombination of the wheat rust fungus Puccinia striiformis on Berberis vulgaris
An isolate of the basidiomycete Puccinia striiformis, which causes yellow (stripe) rust on wheat, was selfed on the newly discovered alternate host, Berberis vulgaris. This allowed a study of the segregation of molecular markers and virulence in the progeny isolates, and of the development of fungal sexual structures and spore forms.
2014.08.20 | Research news
New article: Origin, Migration Routes and Worldwide Population Genetic Structure of the Wheat Yellow Rust Pathogen Puccinia striiformis f.sp. tritici
This collaborative work between Denmark, France and Pakistan describe the worldwide population structure of wheat yellow rust and identifies the centre of diversity of the pathogen in Himalayan and near Himalayan regions.
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
Race analysis of Yellow rust at GRRC
Please find reports of the non-European Puccinia striiformis race analyses activities at GRRC 2010 - 2017:
- Summary of Puccinia striiformis race analysis 2017 February 10, 2018
- 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 lineages and races
Sampling site focus in 2018 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.
RUSTFIGHT - Meeting the new challenges from infectious rust fungi on crop plants
The Danish Research Council for Strategic Research is contributing 19.8m DKK to a new research project to be led by Aarhus University. The results from the project will bring more knowledge to the prevention and control of wheat rust.
The research will be a collaboration between The Global Rust Reference Centre at Aarhus University, University of Copenhagen, Technical University of Denmark, Sejet Planteforædling and leading international institutions.
In the project the scientists will try to decode how and why the fungus starts to develop so aggressively. They will also prepare a list of the genetic codes of the fungus – the so-called effectors – that are responsible for the ability of the fungus to adapt to new wheat varieties. These effectors will be screened and used to develop wheat cultivars with durable rust resistance.
Another ambition is to track down rust resistance in resistant wheat varieties and strains made available from international institutions to Danish plant breeders.
