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:

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:, 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

Google Analytics

Targeted advertising cookies


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 or by post at:

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

Dernière mise à jour : Mai 2018


Home page



Clavijo G, Dorémus T, Ravallec M, Mannucci MA, Jouan V, Volkoff AN and Darboux I. 2011. Multigenic families in Ichnovirus: a Tissue and Host Specificity Study through Expression Analysis of Vankyrins from Hyposoter didymator Ichnovirus. PLoS ONE 6(11): e27522. doi

Provost B, Jouan V, Hilliou F, Delobel P, Bernardo P, Ravallec M, Cousserans F, Wajnberg E, Darboux I, Fournier P, Strand MR, Volkoff AN. 2011. Lepidopteran transcriptome analysis following infection by phylogenetically unrelated polydnaviruses highlights differential and common responses. Insect Biochem Mol Biol. 41(8):582-91.

Volkoff AN, Jouan V, Urbach S, Samain S, Bergoin M, Wincker P, Demettre E, Cousserans F, Provost B, Coulibaly F, Legeai F, Béliveau C, Cusson M, Gyapay G and Drezen JM. 2010. Analysis of Virion Structural Components Reveals Vestiges of the Ancestral Ichnovirus Genome. PLoS Pathogens 6(5): e1000923.

Chapelle M, Girard PA, Cousserans F, Volkoff AN and Duvic B. 2009. Lysozymes and lysozyme-like proteins from the fall armyworm, Spodoptera frugiperda. Molecular Immunology 47(2-3):261-9

Serbielle C, Moreau S, Veillard F, Voldoire E, Bézier A, Mannucci MA, Volkoff AN, Drezen JM, Lalmanach G and Huguet E. 2009. Identification of parasite-responsive cysteine proteases in Manduca sexta. Biological Chemistry 390, 493-502.

Bezier A, Annaheim M, Herbinière J, Wetterwald C, Gyapay G, Samain S, Wincker P, Roditi I, Heller M, Belghazi M, Pfister-Wilhem R, Periquet G, Dupuy C, Huguet E, Volkoff AN, Lanzrein B, Drezen JM. 2009. Bracoviruses derive from an ancestral nudivirus. Science 323, 926. (IF=28.10)

Girard PA, Boublik Y, Wheat CW, Volkoff AN, Cousserans F, Brehelin M, Escoubas JM. 2008. X-tox: an atypical defensin derived family of immune related protein specific to Lepidoptera. Dev. Comp. Immunol. 32:575-84.

Barat-Houari M, Hilliou F, Jousset FX, Sofer L, Deleury E, Rocher J, Ravallec M, Galibert L, Delobel P, Feyereisen R, Fournier P, Volkoff AN. 2006. Gene expression profiling of Spodoptera frugiperda hemocytes and fat body using cDNA microarray reveals polydnavirus-associated variations in lepidopteran host genes transcript levels. BMC Genomics. Jun 21;7:160.

Negre V, Hotelier T, Volkoff AN, Gimenez S, Cousserans F, Mita K, Sabau X, Rocher J, Lopez-Ferber M, d'Alencon E, Audant P, Sabourault C, Bidegainberry V, Hilliou F, Fournier P. 2006.  SPODOBASE: an EST database for the lepidopteran crop pest Spodoptera. BMC Bioinformatics. Jun 23;7:322.

Galibert L, Devauchelle G, Cousserans F, Rocher J, Cerutti P, Barat-Houari M, Fournier P, Volkoff AN. 2006.  Members of the Hyposoter didymator Ichnovirus repeat element gene family are differentially expressed in Spodoptera frugiperda. Virol J. Jun 19;3:48.

Turnbull MW, Volkoff AN, Webb BA, Phelan P. 2005. Functional gap junction genes are encoded by insect viruses. Curr Biol. Jul 12;15(13):R491-2.

d'Alencon E, Piffanelli P, Volkoff AN, Sabau X, Gimenez S, Rocher J, Cerutti P, Fournier P. 2004. A genomic BAC library and a new BAC-GFP vector to study the holocentric pest Spodoptera frugiperda. Insect Biochem Mol Biol. Apr;34(4):331-41.

Rocher J, Ravallec M, Barry P, Volkoff AN, Ray D, Devauchelle G, Duonor-Cerutti M. 2004. Establishment of cell lines from the wasp Hyposoter didymator (Hym., Ichneumonidae) containing the symbiotic polydnavirus H. didymator ichnovirus. J Gen Virol. Apr;85(Pt 4):863-8.

Volkoff AN, Rocher J, d'Alencon E, Bouton M, Landais I, Quesada-Moraga E, Vey A, Fournier P, Mita K, Devauchelle G. 2003. Characterization and transcriptional profiles of three Spodoptera frugiperda genes encoding cysteine-rich peptides. A new class of defensin-like genes from lepidopteran insects? Gene. Nov 13;319:43-53.

Galibert L, Rocher J, Ravallec M, Duonor-Cerutti M, Webb BA, Volkoff AN. 2003. Two Hyposoter didymator ichnovirus genes expressed in the lepidopteran host encode secreted or membrane-associated serine and threonine rich proteins in segments that may be nested. J Insect Physiol. May;49(5):441-51.

Volkoff AN, Beliveau C, Rocher J, Hilgarth R, Levasseur A, Duonor-Cerutti M, Cusson M, Webb BA. 2002. Evidence for a conserved polydnavirus gene family: ichnovirus homologs of the CsIV repeat element genes. Virology. Sep 1;300(2):316-31.

Volkoff AN, Rocher J, Cerutti P, Ohresser MC, d'Aubenton-Carafa Y, Devauchelle G, Duonor-Cerutti M. 2001. Persistent expression of a newly characterized Hyposoter didymator polydnavirus gene in long-term infected lepidopteran cell lines. J Gen Virol. Apr;82(Pt 4):963-9.

Volkoff AN, Cerutti P, Rocher J, Ohresser MC, Devauchelle G, Duonor-Cerutti M. 1999. Related RNAs in lepidopteran cells after in vitro infection with Hyposoter didymator virus define a new polydnavirus gene family. Virology. Oct 25;263(2):349-63.

Volkoff AN. 1999. Les polydnavirus : vecteurs de transfert d'information génétiques entre un hyménoptère et un lépidoptère. Virologie 3: 23-24.

Volkoff AN, Ravallec M, Bossy JP, Cerutti P, Rocher J, Cerutti M, Devauchelle G. 1995. The replication of Hyposoter didymator polydnavirus: Cytopathology of the calyx cells in the parasitoid. Biology of the Cell, Volume 83, Number 1, pp. 1-13.

Book chapters

Volkoff AN. 2009. Utilisation des microorganismes. In La lutte biologique: applications aux arthropodes ravageurs et aux adventices (ed. B. Pintureau), Part B, Chap. 6, pp. 99-124. Ellipses Editions, Coll. Technosup.

Volkoff A.-N., Drezen J.-M., Cusson M. and Webb B.A. 2011. The Organization of Genes Encoding Ichnovirus Structural Proteins. In Parasitoid viruses: symbionts and pathogens, eds N.E. Beckage, J.M. Drezen, Elsevier Inc. pp.33-46.

Cusson M., Stoltz D., Lapointe R., Béliveau C., Nisole A., Volkoff A.-N., Drezen J.-M. and Levesque R.C. 2011. Genomics of Banchinae ichnoviruses: insights into their relationship to bracoviruses and campoplegine ichnoviruses. In Parasitoid viruses: symbionts and pathogens, eds N.E. Beckage, J.M. Drezen, Elsevier Inc. pp.79-88.