Know more

Our use of cookies

Cookies are a set of data stored on a user’s device when the user browses a web site. The data is in a file containing an ID number, the name of the server which deposited it and, in some cases, an expiry date. We use cookies to record information about your visit, language of preference, and other parameters on the site in order to optimise your next visit and make the site even more useful to you.

To improve your experience, we use cookies to store certain browsing information and provide secure navigation, and to collect statistics with a view to improve the site’s features. For a complete list of the cookies we use, download “Ghostery”, a free plug-in for browsers which can detect, and, in some cases, block cookies.

Ghostery is available here for free: https://www.ghostery.com/fr/products/

You can also visit the CNIL web site for instructions on how to configure your browser to manage cookie storage on your device.

In the case of third-party advertising cookies, you can also visit the following site: http://www.youronlinechoices.com/fr/controler-ses-cookies/, offered by digital advertising professionals within the European Digital Advertising Alliance (EDAA). From the site, you can deny or accept the cookies used by advertising professionals who are members.

It is also possible to block certain third-party cookies directly via publishers:

Cookie type

Means of blocking

Analytical and performance cookies

Realytics
Google Analytics
Spoteffects
Optimizely

Targeted advertising cookies

DoubleClick
Mediarithmics

The following types of cookies may be used on our websites:

Mandatory cookies

Functional cookies

Social media and advertising cookies

These cookies are needed to ensure the proper functioning of the site and cannot be disabled. They help ensure a secure connection and the basic availability of our website.

These cookies allow us to analyse site use in order to measure and optimise performance. They allow us to store your sign-in information and display the different components of our website in a more coherent way.

These cookies are used by advertising agencies such as Google and by social media sites such as LinkedIn and Facebook. Among other things, they allow pages to be shared on social media, the posting of comments, and the publication (on our site or elsewhere) of ads that reflect your centres of interest.

Our EZPublish content management system (CMS) uses CAS and PHP session cookies and the New Relic cookie for monitoring purposes (IP, response times).

These cookies are deleted at the end of the browsing session (when you log off or close your browser window)

Our EZPublish content management system (CMS) uses the XiTi cookie to measure traffic. Our service provider is AT Internet. This company stores data (IPs, date and time of access, length of the visit and pages viewed) for six months.

Our EZPublish content management system (CMS) does not use this type of cookie.

For more information about the cookies we use, contact INRA’s Data Protection Officer by email at cil-dpo@inra.fr or by post at:

INRA
24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

Menu Logo Principal

Ecophysiologie et Génomique Fonctionnelle de la Vigne - Umr 1287 EGVF

UMR 1287 - EGVF

Unité Mixte de Recherche (INRA, ENITAB, Université de Bordeaux)

Ecophysiologie et Génomique Fonctionnelle de la Vigne
I.S.V.V Bordeaux, 210 Chemin de Leysotte

33882 Villenave d’Ornon Cedex, France

REMUNEX

REMUNEX
Genetic determinism and mechanisms of the resistance of Muscadine to the nematode Xiphinema index, vector of GFLV, for the creation of grapevine rootstock.

Funding: CTPS
Partership: UMR ISA Sophia Antipolis (Daniel ESMENJAUD)
Period: January 2015 > June 2018 (42 mo)
Contact EGFV: Nathalie OLLAT

Abstract: The two major pathways currently explored in France to control GFLV, a virus disease transmitted by the nematode Xiphinema index in soil, are the selection of fallow plants with antagonistic effects on the vector nematode and the creation of gate -greffe resistant to the latter in order to induce resistance to the virus. This proposal addresses the aspect of resistance to GFLV, a priority issue for rootstock confronted with the withdrawal of nematicides and conditions of declining recurrent yields in vineyards. The proof of the concept of resistance to the vector carried by the muscadine source NC184-4 was made by the proposing teams in the Nemadex A.B. rootstock approved in 2011 which strongly delays the viral transmission but has limited cultural abilities. With the aim of eventually creating a range of rootstocks resistant to GFLV (via nematode resistance) and adapted in particular to the various pedoclimatic conditions of the French vineyard, this muscadine source must be used optimally. This project aims to i) facilitate this creation by the knowledge of genetic determinism and histological mechanisms and by the molecular marking of vector resistance, and ii) to establish, by infectious soil tests, the durability of resistance induced by with respect to the virus and its link with the resistance genes (number ...) identified with respect to the nematode. Our first results obtained on segregated BC1 offspring suggest that nematode resistance is controlled by three dominant and independent genes. The segregation will be specified on a large number of individuals and will serve as a basis for the development of markers of the genes involved. The effect of different gene combinations will be studied in order to define a possible pyramiding strategy in new genotypes to increase the durability of resistance to the virus. This innovation will be decisive and perfectly complementary to the fallow-based control pathway studied as part of a global national project coordinated by the IFV.