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Phytophthora Infestans Resistance


Population Structure of Phytophtora Infestans in European Part of Russia and Resistance of Potato Cultivars

Tech Area / Field

  • BIO-CGM/Cytology, Genetics and Molecular Biology/Biotechnology
  • AGR-PPR/Plant Protection/Agriculture
  • BIO-MIB/Microbiology/Biotechnology

8 Project completed

Registration date

Completion date

Senior Project Manager
Pradas-Poveda J I

Leading Institute
Phytopathology Research Institute, Russia, Moscow reg., Bolshie Vyazemy


  • Cornell University, USA, NY, Ithaca\nUniversity of California, USA, CA, Riverside

Project summary

The aims of the project are: a) study of structure and evolution of russian populations of late blight pathogen Phytophthora infestans, b) Non-specific resistance of potato to late blight testing method elaboration. More than 150 years late blight cause a great crop losses in Europe, North America and Asia. All this time plant scientists work with P. infestans and had a great difficulties in studying of biology, genetics, virulence and population structure of this very changeable pathogen. Many international programs (PICTIPAPA, CEEM, GILB) devoted to P. infestans. Authors of this project participate in their work.

There are the largest areas in the world under potato crops in Russia. Large part of these territory has late blight epidemics every year. Authors of the project have been working for many years in a fields of biology and genetics of P. infestans, forecasting of late blight epidemics, chemical and biological protection of potato and tomato, cultivars testing for late blight resistance. Results of this work are in many scientific publications and well-known to foreign colleagues. Authors were the first who investigated the parasexual process and vegetative incompatibility in P. infestans, worked out original methods of aggressiveness, virulence, resistance to fungicides testing, methods of potato resistance to late blight testing, studied populations of P. infestans at Siberia, Far East and in the Moscow region and showed a differences between these populations. The next research introduced in the project:

1) Exploration of Russian Europe populations (tests not less then 500 isolates from 9 regions: collecting, cleaning, analysis of biological, cariological, molecular markers and pathogenic properties. Investigation of changes during summer epidemic and winter storage. Determination of migration ways between European and Siberian populations and between European populations on potato is planned. Influence of environmental conditions on frequencies of mating type, molecular markers, molecular mechanisms of cyclic changes of pathogenic features of populations are planned also.

2) Establishment of non-specific and specific components of resistance of different potato cultivars to late blight pathogens from different regions using original method. Results of work under the project will be new data on population biology of P. infestans, recommendations to potato growers about cultivars prior to plant in their areas and about application of fungicides. Aggressive P. infestans genotypes predicted to widespread distribution in the nearest future will be recommended to potato breeders for cultivars testing. Participation of scientists of VNIIF will help them to find peaceful application of their knowledge.

Role of foreign collaborators

Foreign collaborators (Prof. W. E. Fry and Prof. M. D. Coffey) are well known specialists in Phytophthora research. They collaborate fruitfully with russian researchers for many years and can help in work under the project. Information changes with collaborators stuff during the work under the project. Collaborators will help to carry our molecular biology testing and introducing the results. One-year trip of VNIIF researcher to Cornell University is planned. Finally mutual article in scientific journal about comparison of Russian, North American and Great Britain populations of P. infestans is planned. Exchange of collections and testing of potato cultivars in the Moscow region and in New York state (USA) using the same method are planned also.


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