Menu
Dynamic of varietal resistance to rust in winter wheat in several countries in Europe.

Dynamic of varietal resistance to rust in winter wheat in several countries in Europe.

By In Aiv Internship On January 8, 2019


Internship title: Dynamic of varietal resistance to rust in winter wheat in several countries in Europe.

LABORATORY
Name: Génétique Quantive et Evolution – Le Moulon
Affiliation: INRA, Université Paris-Sud, CNRS, AgroParisTech
Address: Ferme du Moulon, 91190 Gif-sur-Yvette
E-mail: florence.dubs@inra.fr

LAB Director
Name: Olivier Martin
Phone number: 0169332330
E-mail: olivier.c.martin@inra.fr

SUPERVISOR
Name: Florence Dubs
Phone number: 0684733728
E-mail: florence.dubs@inra.fr

Subject Keywords: Crop diversity
Diversity indicators
Regression models
Spatio-temporal structure
Multivariate analyses
Triticum aestivum L.

Tools and methodologies: 1) collect data from wheat variety surveillance bodies (pre- and post-registration, variety area and multiplication) in different European countries
2) harmonize data in order to made comparable before analysis (protocols for the notation of varietal characteristics may differ from country to country)
3) statistical analysis of the spatio-temporal evolution of winter wheat diversity in each European country (using R and appropriate packages)
4) discuss the dynamics of these resistances in the light of the available bibliography on epidemiology and selection for rust resistance, as well as through exchanges with various French and foreign experts.

Summary of lab’s interests: The M2 internship will take place at the GQE-Le Moulon lab gather researchers on genetics and biology but covers a large variety of themes (such as agronomy, botanic, quantitative genetics, evolutionary genetics or population genetics) and also accounts for few mathematicians and physicists. The researchers work mainly focuses on the study of the genetics basis of quantitative variations. The DEAP (diversity, evolution and adaptation of the populations) team is internationally recognized for its participatory plant breeding program in collaboration with organic farmers organizations, and is currently also leading projects on wheat variety mixtures and species mixtures.
Project summary: The H2020 RustWatch project aims to develop a European early warning system for common wheat rust outbreaks. In Europe, over the past decade, wheat rust has become a major problem, with the most serious wheat rust outbreaks in more than 50 years in 2016, resulting in significant yield losses. The main objective of the internship will be to describe the varietal and functional diversity of wheat varieties deployed in different European countries and to analyse the spatial structure and temporal evolution of varietal resistance over the past decades. The analysis will be based on the statistical approach developed by Perronne et al (2017) for the study of the temporal evolution (1980-2006) of the variety diversity deployed in France. The study will focus in particular on resistance to yellow rust, whose epidemics are well described at the European level (Wellings 2011), and for which varietal resistances has been identified and postulated (http://wheatrust.org/). The student will test whether or not there are differences on the resistance deployed between European countries, and whether variety deployments are correlated with the large resistance bypasses described in the past.
Interdisciplinary aspect of the project: The project includes agronomy, ecology, plant epidemiology, population genetics and biostatistics. Internship gives chance to develop synthesis skills, to extract important information from the bibliography on the subject and relate it to all the results produced.