Team 05: Recombination and Maintenance of Genome Integrity

Our research concerns the cellular mechanisms assuring the maintenance of the genome, and its faithful transmission through development and reproduction. We work with the plant Arabidopsis, a biological model of particular interest for these studies due to the viability of the knockout mutants of many key genes, often lethal in animals. 


On-going work falls under two headings:

1/ Recombination, DNA breaks and Chromosome stability. Living cells repair chomosome breaks through recombination and with new tools (in vivo DSB repair kinetics, endonucleases, fusion proteins,  cytometry, RNAseq...) we are studying the molecular mechanisms and control of the multiple pathways involved, including their roles at dysfunctional telomeres. Recent highlights include identification of a role for small RNAs in DNA break repair in Arabidopsis and in humans, signalling and repair of dysfunctional telomeres, a functional hierarchy of the four major recombination pathways and their roles in the transformation of plant cells by Agrobacterium T-DNA.

2/ Recombination and Chromosomal Pairing in Meiosis. We are studying mechanisms of recombination and homologous chromosome pairing in meiosis. Focussing on the roles of the Rad51 protein family, the MRN complex  and the structure-specific endonucleases, our recently published results show distinct requirements for these proteins in pairing of centromeres and of chromosome arms. Does this reflect heterochromatin/euchromatin differences, chromatin/DNA structure? Which molecular mechanisms are involved?

Research thematics


Last Name First Name Position Contact
Simon AMIARD profile picture AMIARD Simon Research Fellow
Michel CHARBONNEAU profile picture CHARBONNEAU Michel Senior Research Fellow
Olivier DA INES profile picture DA INES Olivier Research Fellow
Maria Eugenia GALLEGO profile picture GALLEGO Maria Eugenia Professor
Nathalie GRANDIN profile picture GRANDIN Nathalie Research Fellow
Margaux OLIVIER profile picture OLIVIER Margaux Ph.D Student
Gunjita SINGH profile picture SINGH Gunjita Ph.D Student
Jeremy VERBEKE profile picture VERBEKE Jeremy Research Technician
Charles WHITE profile picture WHITE Charles Principal Investigator


  • 2017
    • T. Hirakawa, J. Hasegawa, C. White and S. Matsunaga, “RAD54 forms DNA repair foci in response to DNA damage in living plant cells.”, Plant J., 2017.
  • 2016
    • C. Collonnier, A. Epert, K. Mara, F. Maclot, A. Guyon-Debast, F. Charlot, C. White, D. Schaefer and F. Nogue, “CRISPR-Cas9-mediated efficient directed mutagenesis and RAD51-dependent and RAD51-independent gene targeting in the moss Physcomitrella patens.”, Plant Biotechnol. J., 2016.
    • J. Pedroza-Garcia, S. Domenichini, C. Mazubert, M. Bourge, C. White, E. Hudik, R. Bounon, Z. Tariq, E. Delannoy, I. Del Olmo, M. Pineiro, J. Jarillo Quiroga, C. Bergounioux, M. Benhamed and C. Raynaud, “Role of the Polymerase sub-unit DPB2 in DNA replication, cell cycle regulation and DNA damage response in Arabidopsis.”, Nucleic Acids Res., 2016.
    • K. Richter, H. Serra, C. White and H. Jeske, “The recombination mediator RAD51D promotes geminiviral infection.”, Virology, vol. 493 , pp. 113–127, 2016.
  • 2015
    • M. Olivier, O. Da Ines, S. Amiard, H. Serra, C. Goubely, C. White and M. Gallego, “MUS81 and SEND1 are essential for telomere stability in Arabidopsis.”, Plant Cell, 2015.
    • O. Da Ines and C. White, “Centromere Associations in Meiotic Chromosome Pairing.”, Annual review of genetics, 2015.
    • V. Muchova, S. Amiard, I. Mozgova, M. Dvorackova, M. Gallego, C. White and J. Fajkus, “Homology-dependent repair is involved in 45S rDNA loss in plant CAF-1 mutants.”, Plant J., vol. 81 (2) , pp. 198–209, 2015.
    • P. Merle, M. Gueugneau, M. Teulade-Fichou, M. Muller-Barthelemy, S. Amiard, E. Chautard, C. Guetta, V. Dedieu, Y. Communal, J. Mergny, M. Gallego, C. White, P. Verrelle and A. Tchirkov, “Highly efficient radiosensitization of human glioblastoma and lung cancer cells by a G-quadruplex DNA binding compound.”, Scientific reports, vol. 5 , pp. 16255, 2015.
  • 2014
    • S. Amiard, M. Olivier, E. Allain, K. Choi, R. Smith-Unna, I. Henderson, C. White and M. Gallego, “Telomere stability and development of ctc1 mutants are rescued by inhibition of EJ recombination pathways in a telomerase-dependent manner.”, Nucleic Acids Res., vol. 42 (19) , pp. 11979–91, 2014.
    • P. Kalhorzadeh, Z. Hu, T. Cools, S. Amiard, E. Willing, N. De Winne, K. Gevaert, G. De Jaeger, K. Schneeberger, C. White and L. De Veylder, “Arabidopsis thaliana RNase H2 deficiency counteracts the needs for the WEE1 checkpoint kinase but triggers genome instability.”, Plant Cell, vol. 26 (9) , pp. 3680–92, 2014.
    • O. Da Ines, M. Gallego and C. White, “Recombination-independent mechanisms and pairing of homologous chromosomes during meiosis in plants.”, Mol Plant, vol. 7 (3) , pp. 492–501, 2014.
    • I. Mestiri, F. Norre, M. Gallego and C. White, “Multiple host-cell recombination pathways act in Agrobacterium-mediated transformation of plant cells.”, Plant J., vol. 77 (4) , pp. 511–20, 2014.
    • S. Amiard, O. Da Ines, M. Gallego and C. White, “Responses to telomere erosion in plants.”, PLoS ONE, vol. 9 (1) , pp. e86220, 2014.
  • 2013
  • 2012
    • A. Ayar, S. Wehrkamp-Richter, J. Laffaire, S. Le Goff, J. Levy, S. Chaignon, H. Salmi, A. Lepicard, C. Sallaud, M. Gallego, C. White and W. Paul, “Gene targeting in maize by somatic ectopic recombination.”, Plant Biotechnol. J., vol. 11 (3) , pp. 305–14, 2012.
    • B. Peret, G. Li, J. Zhao, L. Band, U. Voss, O. Postaire, D. Luu, O. Da Ines, I. Casimiro, M. Lucas, D. Wells, L. Lazzerini, P. Nacry, J. King, O. Jensen, A. Schaffner, C. Maurel and M. Bennett, “Auxin regulates aquaporin function to facilitate lateral root emergence.”, Nature cell biology, vol. 14 (10) , pp. 991–8, 2012.
    • W. Wei, Z. Ba, M. Gao, Y. Wu, Y. Ma, S. Amiard, C. White, J. Rendtlew Danielsen, Y. Yang and Y. Qi, “A role for small RNAs in DNA double-strand break repair.”, Cell, vol. 149 (1) , pp. 101–12, 2012.
    • A. Poulet, S. Pisano, C. Faivre-Moskalenko, B. Pei, Y. Tauran, Z. Haftek-Terreau, F. Brunet, Y. Le Bihan, M. Ledu, F. Montel, N. Hugo, S. Amiard, F. Argoul, A. Chaboud, E. Gilson and M. Giraud-Panis, “The N-terminal domains of TRF1 and TRF2 regulate their ability to condense telomeric DNA.”, Nucleic Acids Res., vol. 40 (6) , pp. 2566–76, 2012.
    • O. Da Ines, K. Abe, C. Goubely, M. Gallego and C. White, “Differing requirements for RAD51 and DMC1 in meiotic pairing of centromeres and chromosome arms in Arabidopsis thaliana.”, PLoS Genet., vol. 8 (4) , pp. e1002636, 2012.
  • 2011
    • S. Amiard, A. Depeiges, E. Allain, C. White and M. Gallego, “Arabidopsis ATM and ATR kinases prevent propagation of genome damage caused by telomere dysfunction.”, Plant Cell, vol. 23 (12) , pp. 4254–65, 2011.
    • C. Charbonnel, E. Allain, M. Gallego and C. White, “Kinetic analysis of DNA double-strand break repair pathways in Arabidopsis.”, DNA Repair (Amst.), vol. 10 (6) , pp. 611–9, 2011.
    • S. Amiard, C. White and M. Gallego, “Recombination proteins and telomere stability in plants.”, Curr. Protein Pept. Sci., vol. 12 (2) , pp. 84–92, 2011.
    • Z. Kevei, M. Baloban, O. Da Ines, H. Tiricz, A. Kroll, K. Regulski, P. Mergaert and E. Kondorosi, “Conserved CDC20 cell cycle functions are carried out by two of the five isoforms in Arabidopsis thaliana.”, PLoS ONE, vol. 6 (6) , pp. e20618, 2011.
  • 2010
    • S. Amiard, C. Charbonnel, E. Allain, A. Depeiges, C. White and M. Gallego, “Distinct roles of the ATR kinase and the Mre11-Rad50-Nbs1 complex in the maintenance of chromosomal stability in Arabidopsis.”, Plant Cell, vol. 22 (9) , pp. 3020–33, 2010.
    • C. Charbonnel, M. Gallego and C. White, “Xrcc1-dependent and Ku-dependent DNA double-strand break repair kinetics in Arabidopsis plants.”, Plant J., vol. 64 (2) , pp. 280–90, 2010.
    • O. Da Ines, W. Graf, K. Franck, A. Albert, J. Winkler, H. Scherb, W. Stichler and A. Schaffner, “Kinetic analyses of plant water relocation using deuterium as tracer - reduced water flux of Arabidopsis pip2 aquaporin knockout mutants.”, Plant biology (Stuttgart, Germany), vol. 12 Suppl 1 , pp. 129–39, 2010.
    • J. Ye, C. Lenain, S. Bauwens, A. Rizzo, A. Saint-Leger, A. Poulet, D. Benarroch, F. Magdinier, J. Morere, S. Amiard, E. Verhoeyen, S. Britton, P. Calsou, B. Salles, A. Bizard, M. Nadal, E. Salvati, L. Sabatier, Y. Wu, A. Biroccio, A. Londono-Vallejo, M. Giraud-Panis and E. Gilson, “TRF2 and apollo cooperate with topoisomerase 2alpha to protect human telomeres from replicative damage.”, Cell, vol. 142 (2) , pp. 230–42, 2010.
    • I. Ourliac-Garnier, A. Poulet, R. Charif, S. Amiard, F. Magdinier, K. Rezai, E. Gilson, M. Giraud-Panis and S. Bombard, “Platination of telomeric DNA by cisplatin disrupts recognition by TRF2 and TRF1.”, Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, vol. 15 (5) , pp. 641–54, 2010.
  • 2009
    • M. Vanstraelen, M. Baloban, O. Da Ines, A. Cultrone, T. Lammens, V. Boudolf, S. Brown, L. De Veylder, P. Mergaert and E. Kondorosi, “APC/C-CCS52A complexes control meristem maintenance in the Arabidopsis root.”, Proc. Natl. Acad. Sci. U.S.A., vol. 106 (28) , pp. 11806–11, 2009.
    • A. Poulet, R. Buisson, C. Faivre-Moskalenko, M. Koelblen, S. Amiard, F. Montel, S. Cuesta-Lopez, O. Bornet, F. Guerlesquin, T. Godet, J. Moukhtar, F. Argoul, A. Declais, D. Lilley, S. Ip, S. West, E. Gilson and M. Giraud-Panis, “TRF2 promotes, remodels and protects telomeric Holliday junctions.”, EMBO J., vol. 28 (6) , pp. 641–51, 2009.
    • J. Vannier, A. Depeiges, C. White and M. Gallego, “ERCC1/XPF protects short telomeres from homologous recombination in Arabidopsis thaliana.”, PLoS Genet., vol. 5 (2) , pp. e1000380, 2009.
  • 2008
    • J. Kozak, C. West, C. White, J. da Costa-Nunes and K. Angelis, “Rapid repair of DNA double strand breaks in Arabidopsis thaliana is dependent on proteins involved in chromosome structure maintenance.”, DNA Repair (Amst.), vol. 8 (3) , pp. 413–9, 2008.
    • C. White, “News from Arabidopsis on the meiotic roles of Blap75/Rmi1 and Top3alpha.”, PLoS Genet., vol. 4 (12) , pp. e1000306, 2008.
    • A. Sommer, B. Geist, O. Da Ines, R. Gehwolf, A. Schaffner and G. Obermeyer, “Ectopic expression of Arabidopsis thaliana plasma membrane intrinsic protein 2 aquaporins in lily pollen increases the plasma membrane water permeability of grain but not of tube protoplasts.”, The New phytologist, vol. 180 (4) , pp. 787–97, 2008.