Know more

About cookies

What is a "cookie"?

A "cookie" is a piece of information, usually small and identified by a name, which may be sent to your browser by a website you are visiting. Your web browser will store it for a period of time, and send it back to the web server each time you log on again.

Different types of cookies are placed on the sites:

  • Cookies strictly necessary for the proper functioning of the site
  • Cookies deposited by third party sites to improve the interactivity of the site, to collect statistics

Learn more about cookies and how they work

The different types of cookies used on this site

Cookies strictly necessary for the site to function

These cookies allow the main services of the site to function optimally. You can technically block them using your browser settings but your experience on the site may be degraded.

Furthermore, you have the possibility of opposing the use of audience measurement tracers strictly necessary for the functioning and current administration of the website in the cookie management window accessible via the link located in the footer of the site.

Technical cookies

Name of the cookie

Purpose

Shelf life

CAS and PHP session cookies

Login credentials, session security

Session

Tarteaucitron

Saving your cookie consent choices

12 months

Audience measurement cookies (AT Internet)

Name of the cookie

Purpose

Shelf life

atid

Trace the visitor's route in order to establish visit statistics.

13 months

atuserid

Store the anonymous ID of the visitor who starts the first time he visits the site

13 months

atidvisitor

Identify the numbers (unique identifiers of a site) seen by the visitor and store the visitor's identifiers.

13 months

About the AT Internet audience measurement tool :

AT Internet's audience measurement tool Analytics is deployed on this site in order to obtain information on visitors' navigation and to improve its use.

The French data protection authority (CNIL) has granted an exemption to AT Internet's Web Analytics cookie. This tool is thus exempt from the collection of the Internet user's consent with regard to the deposit of analytics cookies. However, you can refuse the deposit of these cookies via the cookie management panel.

Good to know:

  • The data collected are not cross-checked with other processing operations
  • The deposited cookie is only used to produce anonymous statistics
  • The cookie does not allow the user's navigation on other sites to be tracked.

Third party cookies to improve the interactivity of the site

This site relies on certain services provided by third parties which allow :

  • to offer interactive content;
  • improve usability and facilitate the sharing of content on social networks;
  • view videos and animated presentations directly on our website;
  • protect form entries from robots;
  • monitor the performance of the site.

These third parties will collect and use your browsing data for their own purposes.

How to accept or reject cookies

When you start browsing an eZpublish site, the appearance of the "cookies" banner allows you to accept or refuse all the cookies we use. This banner will be displayed as long as you have not made a choice, even if you are browsing on another page of the site.

You can change your choices at any time by clicking on the "Cookie Management" link.

You can manage these cookies in your browser. Here are the procedures to follow: Firefox; Chrome; Explorer; Safari; Opera

For more information about the cookies we use, you can contact INRAE's Data Protection Officer by email at cil-dpo@inrae.fr or by post at :

INRAE

24, chemin de Borde Rouge -Auzeville - CS52627 31326 Castanet Tolosan cedex - France

Last update: May 2021

Menu Logo Principal Logo UMR 1332 BFP logo partenaire U-BDX

Home page

UMR 1332 Biologie du Fruit et Pathologie

Christian Chevalier (Dr)

Dr Christian Chevalier
Research Director INRAE (1st Class)

 CV 

  • Date of birth : 07/02/1963
  • Diplomas :  
    PhDThesis in Life Sciences, section Biology and Health, University of Bordeaux. (January 1989).
  • Career :
    Defended 26.01.1989 : PhD Thesis in the laboratory of Prof. J. Bové, Cellular and Molecular Biology, INRA Bordeaux, France. "Contribution to the study of gene structural organization in spiroplasmas: spiralin and neighboring genes".
    March 1990 to April 1991. Postdoctoral fellowship from Japan Society for Promotion of Science in the Laboratory of Metabolic Regulations, Faculty of Agriculture, University of Nagoya (Japan), supervised by Pr T. AKAZAWA.
    August 1st, 1991. Recruitment as 2nd Class Researcher at  INRA-BORDEAUX, in the Plant Physiology laboratory.
    January 1st, 2004. Appointment as 2nd Class Research Director.
    August 1st, 2018. Appointment as 1st Class Research Director.
    01/01/2004 - 31/12/2006. Deputee-Director UMR619 Plant Physiology and Biotechnology.
    January 1st, 2007 - December 31st, 2010. Deputee-Director UMR619 Fruit Biology.
    January 1st, 2011 - December 31st, 2021. Deputee-Director UMR1332 Fruit Biology and Pathology.

CONTACTS

Tel. (33) 557122693

Email : christian.chevalier@inrae.fr

RESEARCH TOPICS

The team "Fruit Organogenesis and Endoreduplication" (OrFE) is interested in the biology of the development of fleshy fruits, with the aim of acquiring a better knowledge of the mechanisms involved during flower initiation and fruit development, in order to contribute to the improvement of fruit quality, using tomato and strawberry as a fruit model and a fruit of application respectively. The OrFE team is interested in the characterization of the genetic, physiological, cytological and molecular events involved in the fructification process and the early development of the fruit, and contributing to the development of its final size and quality. The study of the mechanisms associated with the control of cell size and the final size of the fruit represents a historical thematic axis of the team, ensuring its reputation and its international positioning. The studies on the strawberry model concerning the determinism of floral induction and fruit development and genetic determinants contributing to the quality of fruit, integrated since 2012 in the team, are strongly recognized both internationally and nationally, and benefit a solid integration into the professional production sector.

The approaches used in the team to study these different issues call for a combination of complementary approaches of quantitative and association genetics (strawberry), functional genomics (strawberry and tomato), and cytology (tomato).

Our research is divided into three main activities :

  • Functional characterization of genes associated with the regulation of fruit organogenesis.
    In this topic, we are interested in different candidate genes: (1) the INHIBITOR OF MERISTEM ACTIVITY (IMA) gene, a negative regulator of meristematic activity, involved in genetic programs controlling floral termination (belonging to a repressive transcriptional complex of WUSCHEL ), and ovule and fruit development in tomato; (2) the FW2.2 gene associated to the major QTL that governs fruit size in tomato, for which the function and impact on fruit growth remain enigmatic.
  • Study of the functional role of endoreduplication in fruit growth.
    All of our work aims at establishing the role of endoreduplication in cell growth of cells and that of organs according to the karyoplasmic ratio theory: the increase in the level of ploidy influences the final size of cells that tend to adjust their cytoplasmic volume to the content of nuclear DNA. We have been able to demonstrate the contribution of endoreduplication in the control of transcriptional activities during the development of tomato fruit, and we are looking for transcription factors specific to the endoreduplication process.
  • Analysis of the genetic and molecular determinism of flower induction and fruit quality in strawberry.
    Our studies focus on different research areas: (i) the analysis of genetic and molecular determinism of floral induction, with a focus on the balance between sexual reproduction and asexual reproduction (by runnering); (ii) the analysis of early stages of development and genetic determinants of fruit quality. The goal is to acquire fundamental knowledge about the genetic factors governing flowering and precisely the floral induction that impacts fruit production and quality. This knowledge can lead to the implementation of tools for professionals to spread the strawberry production over a longer period.

PUBLICATIONS

Complete list of publications on the HAL INRAE portal