Valérie COGNAT

Ingénieur de recherche / Research engineer
Plateforme : Bioinformatique
Téléphone : 03 67 15 53 76

Ses publications

  • CLAVEL M., LECHNER E., INCARBONE M., VINCENT T., COGNAT V., SMIRNOVA E., LECORBEILLER M., BRAULT V., ZIEGLER-GRAFF V. and GENSCHIK P.

    Atypical molecular features of RNA silencing against the phloem-restricted polerovirus TuYV

    Nucleic Acid Research, in press, 2021. | DOI : 10.1093/nar/gkab802DOI logo

  • GENTRIC N., MASOUD K., JOURNOT R.P., COGNAT V., CHABOUTÉ M.E., NOIR S. and GENSCHIK P.

    The F-box-like protein FBL17 is a regulator of DNA-damage response and co-localizes with RETINOBLASTOMA RELATED 1 at DNA lesion sites

    Plant Physiology, 20.00188, 2020. | DOI : https://doi.org/10.1104/pp.20.00188DOI logo

  • HUMMEL G., BERR A., GRAINDORGE S., COGNAT V., UBRIG E., PFLIEGER D., MOLINIER J. and MARÉCHAL-DROUARD L.

    Epigenetic silencing of clustered tDNAs in Arabidopsis

    Nucleic Acids Research, 48:10297-10312, 2020. | DOI : 10.1093/nar/gkaa766DOI logo

  • MONTGOMERY S., TANIZAWA Y., GALIK B., WANG N., ITO T., MOCHIZUKI T., AKIMCHEVA S., BOWMAN J., COGNAT V., MARÉCHAL-DROUARD L., EKKER H., HOUNG S., KOHCHI T., LIN S., LIU L., NAKAMURA Y., VALEEVA L., SHAKIROV E., SHIPPEN D., WEI W., YAGURA M., YAMAOKA S., YAMATO K., LIU C. and BERGER F.

    Chromatin organization in early land plants reveals an ancestral association between H3K27me3, transposons, and constitutive heterochroatin

    Current Biology, 30:573-588 e7, 2020. | DOI : 10.1016/j.cub.2019.12.015DOI logo

  • THOMPSON D., COGNAT V., GOODFELLOW M., KOECHLER S., HEINTZ D., CARAPITO C., VAN DORSSELAER A., MAHMOUD H., SANGAL V. and ISMAIL W.

    Phylogenomic Classification and Biosynthetic Potential of the Fossil Fuel-Biodesulfurizing Rhodococcus Strain IGTS8.

    Frontiers in Microbiology, 968-974, 2020.

  • MEGEL C., HUMMEL G., LALANDE S., UBRIG E., COGNAT V., MORELLE G., SALINAS-GIEGÉ T., DUCHÊNE A.M. and MARÉCHAL-DROUARD L.

    Plant RNases T2, but not Dicer-like proteins, are major players of tRNA-derived fragments biogenesis

    Nucleic Acids Research, 47(2):941-952, 2019. | DOI : 10.1093/nar/gky1156DOI logo

  • GRAINDORGE S., COGNAT V., JOHANN TO BERENS P., MUTTERER J. and MOLINIER J.

    Photodamage repair pathways contribute to the accurate maintenance of the DNA methylome landscape upon UV exposure

    PLoS Genetics, 15(11):e1008476, 2019. | DOI : 10.1371/journal.pgen.1008476DOI logo

  • MONTAVON T., KWON Y., ZIMMERMANN A., HAMMANN P., VINCENT T., COGNAT V., BERGDOLL M., MICHEL F. and DUNOYER P.

    Characterization of DCL4 missense alleles provides insights into its ability to process distinct classes of dsRNA substrates.

    Plant Journal, 95(2):204-218, 2018. | DOI : doi: 10.1111/tpj.13941DOI logo

  • SCHALK C., COGNAT V., GRAINDORGE S., VINCENT T., VOINNET O. and MOLINIER J.

    Small RNA-mediated repair of UV-induced DNA lesions by the DNA DAMAGE BINDING protein 2 and ARGONAUTE 1

    Proceedings of the National Academy of Sciences of the United States of America, , 2017. | DOI : 10.1073/pnas.1618834114DOI logo

  • MONTAVON T., KWON Y., ZIMMERMANN A., HAMMANN P., VINCENT T., COGNAT V., MICHEL F. and DUNOYER P.

    A specific dsRNA-binding protein complex selectively sequesters endogenous inverted-repeat siRNA precursors and inhibits their processing

    Nucleic Acids Research, 45(3):1330-1344, 2017. | DOI : 10.1093/nar/gkw1264DOI logo

  • SALINAS-GIEGÉ T., CAVAIUOLO M., COGNAT V., UBRIG E., REMACLE C., DUCHÊNE A.M., VALLON O. and MARÉCHAL-DROUARD L.

    Polycytidylation of mitochondrial mRNAs in Chlamydomonas reinhardtii

    Nucleic Acids Research, 45(22):12963-12973, 2017. | DOI : 10.1093/nar/gkx903DOI logo

  • VINCENT T., VINGADASSALON A., UBRIG E., AZEREDO K., SROUR O., COGNAT V., GRAINDORGE S., SALINAS-GIEGÉ T., MARÉCHAL-DROUARD L. and DUCHÊNE A.M.

    A genome-scale analysis of mRNAs targeting to plant mitochondria: upstream AUGs in 5’-UTRs reduce mitochondrial association

    Plant Journal, 92(6):1132-1142, 2017. | DOI : 10.1111/tpj.13749DOI logo

  • CÓRDOBA-CAÑERO D., COGNAT V., ARIZA R., ROLDÁN ARJONA T. and MOLINIER J.

    Dual control of ROS1-mediated active DNA demethylation by the DNA DAMAGE BINDING protein 2 (DDB2)

    Plant Journal, , 2017. | DOI : 10.1111/tpj.13753DOI logo

  • COGNAT V., MORELLE G., MEGEL C., LALANDE S., MOLINIER J., VINCENT T., SMALL I., DUCHÊNE A.M. and MARÉCHAL-DROUARD L.

    The nuclear and organellar tRNA-derived RNA fragment population in Arabidopsis thaliana is hygly dynamic

    Nucleic Acids Research, 45:3460-3472, 2016. | DOI : 10.1093/nar/gkw1122DOI logo

  • SCHALK C., DREVENSEK S., KRAMDI A., KASSAM M., AHMED I., COGNAT V., GRAINDORGE S., BERGDOLL M., BAUMBERGER N., HEINTZ D., BOWLER C., GENSCHIK P., BARNECHE F., COLOT V. and MOLINIER J.

    DNA DAMAGE BINDING PROTEIN 2 (DDB2) Shapes the DNA Methylation Landscape

    Plant Cell, 28:2043-2059, 2016. | DOI : 10.1105/tpc.16.00474DOI logo

  • COGNAT V., PAWLAK G., DUCHÊNE A.M., DAUJAT M., GIGANT A., SALINAS-GIEGÉ T., MICHAUD M., GUTMANN B., GIEGÉ P., GOBERT A. and MARÉCHAL-DROUARD L.

    PlantRNA, a database for tRNAs of photosynthetic eukaryotes.

    Nucleic Acids Research, 41:273-279, 2013. | DOI : 10.1093/nar/gks935DOI logo

  • MICHELY S., TOULZA E., SUBIRANA L., UWE J., COGNAT V., MARÉCHAL-DROUARD L., GRIMSLEY N., MOREUA H. and PIGANEAU G.

    Evolution of Codon Usage In The Smallest Photosynthetic Eukaryotes And Their Giant Viruses

    Genome Biology and Evolution, 5(5):848-859, 2013. | DOI : 10.1093/gbe/evt053DOI logo

  • DE LUIS A., MARKMANN K., COGNAT V., HOLT D.B., CHARPENTIER M., PARNISKE M., STOUGAARD J. and VOINNET O.

    Two microRNAs linked to nodule infection and nitrogen-fixing ability in the legume Lotus japonicus.

    Plant Physiology, 160:2137-2154, 2012. | DOI : 10.1104/pp.112.204883DOI logo

  • CHEN C.J., SERVANT N., TOEDLING J., SARAZIN A., MARCHAIS A., DUVERNOIS-BERTHET E., COGNAT V., COLOT V., VOINNET O., HEARD E., CIAUDO C. and BARILLOT E.

    ncPRO-seq: a tool for annotation and profiling of ncRNAs in sRNA-seq data

    Bioinformatics, 28(23):3147-3149, 2012. | DOI : 10.1093/bioinformatics/bts587DOI logo

  • DUMBLIAUSKAS E., LECHNER E., JACIUBEK M., BERR A., PAZHOUHANDEH M., ALIOUA A., COGNAT V., BRUKHIN V., KONCZ C., GROSSNIKLAUS U., MOLINIER J. and GENSCHIK P.

    The Arabidopsis CUL4-DDB1 complex interacts with MSI1 and is required to maintain MEDEA parental imprinting

    EMBO Journal, 30:731-743, 2011. | DOI : 10.1038/emboj.2010.359DOI logo

  • MICHAUD M., COGNAT V., DUCHÊNE A.M. and MARÉCHAL-DROUARD L.

    A global picture of tRNA genes in plant genomes

    Plant Journal, 66:80-93, 2011. | DOI : 10.1111/j.1365-313X.2011.04490.xDOI logo

  • VINOGRADOVA E., SALINAS-GIEGÉ T., COGNAT V., REMACLE C. and MARÉCHAL-DROUARD L.

    Steady-state levels of imported tRNAs in Chlamydomona mitochondria are correlated with both cytosolic and mitochondrial codon usages

    Nucleic Acids Research, 31:1521-1528, 2009.

  • COGNAT V., DERAGON J., VINOGRADOVA E., SALINAS-GIEGÉ T., REMACLE C. and MARÉCHAL-DROUARD L.

    On the evolution and expression of Chlamydomonas reinhardtii nucleus-encoded transfer RNA genes

    Genetics, 179:113-123, 2008.

  • LANGE H., HOLEC S., COGNAT V., PIEUCHOT L., LE RET M., CANADAY J. and GAGLIARDI D.

    Degradation of a polyadenylated rRNA maturation by-product involves one of the three RRP6-like proteins in Arabidopsis thaliana.

    Molecular and Cellular Biology, 3038-44, 2008. | DOI : 10.1128/MCB.02064-07DOI logo

  • GIEGÉ P., SWEETLOVE L., COGNAT V. and LEAVER C.

    Coordination of nuclear and mitochondrial genome expression during mitochondrial biogenesis in Arabidopsis.

    Plant Cell, 17, 1497-1512., 2005.