L. Scola, B. Audic, S. Robert, C. Jungang, L. De-lamballerie et al., Science, vol.299, 2003.

D. Raoult, S. Audic, C. Robert, C. Abergel, P. Renesto et al., The 1.2-megabase genome sequence of Mimivirus, Science, vol.306, pp.1344-1350, 2004.
URL : https://hal.archives-ouvertes.fr/hal-00651656

D. Raoult, B. La-scola, and R. Birtles, The discovery and characterization of Mimivirus, the largest known virus and putative pneumonia agent, Clin. Infect. Dis, vol.45, pp.95-102, 2007.

C. Abergel, M. Legendre, and J. M. Claverie, The rapidly expanding universe of giant viruses: Mimivirus, Pandoravirus, Pithovirus and Mollivirus, FEMS Microbiol. Rev, vol.39, pp.779-796, 2015.

J. M. Claverie and C. Abergel, Giant viruses: The difficult breaking of multiple epistemological barriers, Stud. Hist. Philos. Biol. Biomed. Sci, vol.59, pp.89-99, 2016.

J. M. Claverie, H. Ogata, S. Audic, C. Abergel, K. Suhre et al., Mimivirus and the emerging concept of "giant" virus, Virus Res, vol.117, pp.133-144, 2006.
URL : https://hal.archives-ouvertes.fr/hal-00005228

N. Philippe, M. Legendre, G. Doutre, Y. Couté, O. Poirot et al., Amoeba viruses with genomes up to 2.5 Mb reaching that of parasitic eukaryotes, Science, vol.341, pp.281-286, 2013.
URL : https://hal.archives-ouvertes.fr/cea-00862677

C. Desjardins, J. A. Eisen, and V. Nene, New evolutionary frontiers from unusual virus genomes, Genome Biol, vol.6, 2005.

M. Suzan-monti, B. La-scola, and D. Raoult, Genomic and evolutionary aspects of Mimivirus, Virus Res, vol.117, pp.145-155, 2006.

J. M. Claverie, Viruses take center stage in cellular evolution, Genome Biol, 2006.

D. Raoult and P. Forterre, Redefining viruses: Lessons from Mimivirus, Nat. Rev. Microbiol, vol.6, pp.315-319, 2008.
URL : https://hal.archives-ouvertes.fr/hal-00297223

J. M. Claverie, R. Grzela, A. Lartigue, A. Bernadac, S. Nitsche et al., Mimivirus and Mimiviridae: Giant viruses with an increasing number of potential hosts, including corals and sponges, J. Invertebr. Pathol, vol.101, pp.172-180, 2009.

P. Forterre, Giant viruses: Conflicts in revisiting the virus concept, Intervirology, vol.53, pp.116-132, 2010.
URL : https://hal.archives-ouvertes.fr/hal-00506365

J. M. Claverie, C. Abergel, and . Mimivirus, The emerging paradox of quasi-autonomous viruses, Trends Genet, vol.26, pp.431-437, 2010.

J. M. Claverie and C. Abergel, Open questions about giant viruses, Adv. Virus Res, vol.85, pp.25-56, 2013.

D. Moreira and C. Brochier-armanet, Giant viruses, giant chimeras: The multiple evolutionary histories of Mimivirus genes, BMC Evol. Biol, vol.8, p.12, 2008.
URL : https://hal.archives-ouvertes.fr/hal-00698068

D. Moreira and P. Lopez-garcia, Ten reasons to exclude viruses from the tree of life, Nat. Rev. Microbiol, vol.7, pp.306-311, 2009.

E. B. Ludmir and L. W. Enquist, Viral genomes are part of the phylogenetic tree of life, Nat. Rev. Microbiol, vol.7, p.615, 2009.

J. M. Claverie and H. Ogata, Ten good reasons not to exclude giruses from the evolutionary picture, Nat. Rev. Microbiol, vol.7, p.615, 2009.

N. R. Hegde, M. S. Maddur, S. V. Kaveri, and J. Bayry, Reasons to include viruses in the tree of life, Nat. Rev. Microbiol, vol.7, p.615, 2009.

J. Navas-castillo, Six comments on the ten reasons for the demotion of viruses, Nat. Rev. Microbiol, vol.7, p.615, 2009.

P. López-garcía and D. Moreira, Yet viruses cannot be included in the tree of life, Nat. Rev. Microbiol, vol.7, pp.615-617, 2009.

M. Boyer, M. A. Madoui, G. Gimenez, B. La-scola, and D. Raoult, Phylogenetic and phyletic studies of informational genes in genomes highlight existence of a 4 domain of life including giant viruses, PLoS ONE, vol.5, 2010.

M. Legendre, D. Arslan, C. Abergel, and J. M. Claverie, Genomics of Megavirus and the elusive fourth domain of Life, Commun. Integr. Biol, vol.5, pp.102-106, 2012.

A. Nasir, K. M. Kim, and G. Caetano-anolles, Giant viruses coexisted with the cellular ancestors and represent a distinct supergroup along with superkingdoms Archaea, Bacteria and Eukarya, BMC Evol. Biol, vol.12, 2012.

E. V. Koonin, T. G. Senkevich, and V. V. Dolja, Compelling reasons why viruses are relevant for the origin of cells, Nat. Rev. Microbiol, vol.7, p.615, 2009.

L. P. Villarreal and G. Witzany, Viruses are essential agents within the roots and stem of the tree of life, J. Theor. Biol, vol.262, pp.698-710, 2010.
URL : https://hal.archives-ouvertes.fr/hal-00564083

A. Nasir, F. J. Sun, K. M. Kim, and G. Caetano-anollés, Untangling the origin of viruses and their impact on cellular evolution, Ann. N. Y. Acad. Sci, pp.61-74, 1341.

M. W. Beijerinck, Über ein Contagium vivum fluidum als Ursache der Fleckenkrankheit der Tabaksblätter. Verhandelingen der Koninklijke akademie van Wetenschappen te Amsterdam 1898, vol.65, pp.1-22

H. Lecoq, Discovery of the first virus, the tobacco mosaic virus: 1892 or 1898?, C. R. Acad. Sci. III, vol.324, pp.929-933, 2001.

R. H. Meints, J. L. Van-etten, D. Kuczmarski, K. Lee, and B. Ang, Viral infection of the symbiotic chlorella-like alga present in Hydra viridis, Virology, vol.113, pp.698-703, 1981.

J. L. Van-etten, R. H. Meints, D. E. Burbank, D. Kuczmarski, D. A. Cuppels et al., Isolation and characterization of a virus from the intracellular green alga symbiotic with Hydra viridis, Virology, vol.113, pp.704-771, 1981.

F. Torrella and R. Y. Morita, Evidence by electron micrographs for a high incidence of bacteriophage particles in the waters of Yaquina Bay, oregon: Ecological and taxonomical implications, Appl. Environ. Microbiol, vol.37, pp.774-778, 1979.

S. Roux, J. R. Brum, B. E. Dutilh, S. Sunagawa, M. B. Duhaime et al., Ecogenomics and potential biogeochemical impacts of globally abundant ocean viruses, Nature, vol.537, pp.689-693, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01376822

Y. Li, Z. Lu, L. Sun, S. Ropp, G. F. Kutish et al., Analysis of 74 kb of DNA located at the right end of the 330-kb chlorella virus PBCV-1 genome, Virology, vol.237, pp.360-377, 1997.

J. L. Van-etten, R. H. Meints, D. Kuczmarski, D. E. Burbank, and K. Lee, Viruses of symbiotic Chlorella-like algae isolated from Paramecium bursaria and Hydra viridis, Proc. Natl. Acad. Sci, vol.79, pp.3867-3871, 1982.

J. L. Van-etten, Giant Chlorella viruses, Mol. Cells (Korean Soc. Mol. Cell. Biol.), vol.5, pp.99-106, 1995.

J. L. Van-etten and R. H. Meints, Giant viruses infecting algae, Annu. Rev. Microbiol, vol.53, pp.447-494, 1999.

J. C. Venter, K. Remington, J. F. Heidelberg, A. L. Halpern, D. Rusch et al., Environmental genome shotgun sequencing of the Sargasso Sea, Science, vol.304, pp.66-74, 2004.

J. M. Claverie, Giant viruses in the oceans: The 4th Algal Virus Workshop, Virol. J, vol.2, p.52, 2005.
URL : https://hal.archives-ouvertes.fr/hal-00005229

E. Ghedin and J. M. Claverie, Mimivirus relatives in the Sargasso Sea, Virol. J, vol.2, p.62, 2005.
URL : https://hal.archives-ouvertes.fr/hal-00004662

A. Monier, J. M. Claverie, and H. Ogata, Taxonomic distribution of large DNA viruses in the sea, Genome Biol, vol.9, 2008.

A. Monier, J. B. Larsen, R. A. Sandaa, G. Bratbak, J. M. Claverie et al., Marine mimivirus relatives are probably large algal viruses, Virol. J, vol.5, 2008.

H. Ogata, J. Ray, K. Toyoda, R. A. Sandaa, K. Nagasaki et al., Two new subfamilies of DNA mismatch repair proteins (MutS) specifically abundant in the marine environment, ISME J, vol.5, pp.1143-1151, 2011.

D. Arslan, M. Legendre, V. Seltzer, C. Abergel, and J. M. Claverie, Distant Mimivirus relative with a larger genome highlights the fundamental features of Megaviridae, Proc. Natl. Acad. Sci, vol.108, pp.17486-17491, 2011.

J. Abrahão, L. Silva, L. S. Silva, J. Y. Khalil, R. Rodrigues et al., Tailed giant Tupanvirus possesses the most complete translational apparatus of the known virosphere, Nat. Commun, vol.9, p.749, 2018.

D. R. Garza and C. A. Suttle, Large double-stranded DNA viruses which cause the lysis of a marine heterotrophic nanoflagellate (Bodo sp.) occur in natural marine viral communities, Aquat. Microb. Ecol, vol.9, pp.203-210, 1995.

M. G. Fischer, M. J. Allen, W. H. Wilson, and C. A. Suttle, Giant virus with a remarkable complement of genes infects marine zooplankton, Proc. Natl. Acad. Sci, vol.107, pp.19508-19513, 2010.

T. A. Richards and T. Cavalier-smith, Myosin domain evolution and the primary divergence of eukaryotes, Nature, vol.436, pp.1113-1118, 2005.

A. Dereeper, V. Guignon, G. Blanc, S. Audic, S. Buffet et al., fr: Robust phylogenetic analysis for the non-specialist, Nucleic Acids Res, vol.36, pp.465-469, 2008.
URL : https://hal.archives-ouvertes.fr/lirmm-00324099

M. Legendre, E. Fabre, O. Poirot, S. Jeudy, A. Lartigue et al., Diversity and evolution of the emerging Pandoraviridae family, Nat. Commun, vol.9, 2018.
URL : https://hal.archives-ouvertes.fr/hal-01830344

R. A. Sandaa, M. Heldal, T. Castberg, R. Thyrhaug, and G. Bratbak, Isolation and characterization of two viruses with large genome size infecting Chrysochromulina ericina (Prymnesiophyceae) and Pyramimonas orientalis (Prasinophyceae), Virology, vol.290, pp.272-280, 2001.

C. P. Brussaard, S. M. Short, C. M. Frederickson, and C. A. Suttle, Isolation and phylogenetic analysis of novel viruses infecting the phytoplankton Phaeocystis globose (Prymnesiophyceae), Appl. Environ. Microbiol, vol.70, pp.3700-3705, 2004.

A. C. Baudoux and C. P. Brussaard, Characterization of different viruses infecting the marine harmful algal bloom species Phaeocystis globosa, Virology, vol.341, pp.80-90, 2005.

J. B. Larsen, A. Larsen, G. Bratbak, and R. A. Sandaa, Phylogenetic analysis of members of the Phycodnaviridae virus family, using amplified fragments of the major capsid protein gene, Appl. Environ. Microbiol, vol.74, pp.3048-3057, 2008.

S. Santini, S. Jeudy, J. Bartoli, O. Poirot, M. Lescot et al., Genome of Phaeocystis globosa virus PgV-16T highlights the common ancestry of the largest known DNA viruses infecting eukaryotes, Proc. Natl. Acad. Sci, vol.110, pp.10800-10805, 2013.

M. Moniruzzaman, G. R. Lecleir, C. M. Brown, C. J. Gobler, K. D. Bidle et al., Genome of brown tide virus (AaV), the little giant of the Megaviridae, elucidates NCLDV genome expansion and host-virus coevolution, Virology, pp.466-467, 2014.

L. Gallot-lavallée, G. Blanc, and J. M. Claverie, Comparative Genomics of Chrysochromulina Ericina Virus and Other Microalga-Infecting Large DNA Viruses Highlights Their Intricate Evolutionary Relationship with the Established Mimiviridae Family, J. Virol, vol.91, 2017.

C. R. Schvarcz and G. F. Steward, A giant virus infecting green algae encodes key fermentation genes, Virology, vol.518, pp.423-433, 2018.

L. Sicko-goad and G. Walker, Viroplasm and large virus-like particles in the dinoflagellate Gymnodinium uberrimum, Protoplasma, vol.99, pp.203-210, 1979.

J. A. Dodds and A. Cole, Microscopy and biology of Uronema gigas, a filamentous eucaryotic green alga, and its associated tailed virus-like particle, Virology, vol.100, pp.156-165, 1980.

C. M. Deeg, C. T. Chow, and C. A. Suttle, The kinetoplastid-infecting Bodo saltans virus (BsV), a window into the most abundant giant viruses in the sea, vol.7, 2018.

S. J. Williamson, D. B. Rusch, S. Yooseph, A. L. Halpern, K. B. Heidelberg et al., The Sorcerer II Global Ocean Sampling Expedition: Metagenomic characterization of viruses within aquatic microbial samples, PLoS ONE, vol.3, 1456.

J. M. Claverie, C. Abergel, H. Ogata, and . Mimivirus, Curr. Top Microbiol. Immunol, vol.328, pp.89-121, 2009.

S. Yau, F. M. Lauro, M. Z. Demaere, M. V. Brown, T. Thomas et al., Virophage control of antarctic algal host-virus dynamics, Proc. Natl. Acad. Sci, vol.108, pp.6163-6168, 2011.

L. Scola, B. Desnues, C. Pagnier, I. Robert, C. Barrassi et al., The virophage as a unique parasite of the giant mimivirus, Nature, vol.455, pp.100-104, 2008.
URL : https://hal.archives-ouvertes.fr/hal-00354651

J. M. Claverie and C. Abergel, Mimivirus and its virophage, Annu. Rev. Genet, vol.43, pp.49-66, 2009.

J. Zhou, W. Zhang, S. Yan, J. Xiao, Y. Zhang et al., Diversity of virophages in metagenomic data sets, J. Virol, vol.87, pp.4225-4236, 2013.

J. Zhou, D. Sun, A. Childers, T. R. Mcdermott, Y. Wang et al., Three novel virophage genomes discovered from Yellowstone Lake metagenomes, J. Virol, vol.89, pp.1278-1285, 2015.

M. Bekliz, P. Colson, and B. La-scola, The Expanding Family of Virophages, Viruses, vol.8, p.317, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01453275

S. Roux, L. K. Chan, R. Egan, R. R. Malmstrom, K. D. Mcmahon et al., Ecogenomics of virophages and their giant virus hosts assessed through time series metagenomics, Nat. Commun, vol.8, 2017.

E. Karsenti, S. G. Acinas, P. Bork, C. Bowler, C. De-vargas et al., A holistic approach to marine eco-systems biology, PLoS Biol, vol.9, 2011.
URL : https://hal.archives-ouvertes.fr/hal-01893669

P. Hingamp, N. Grimsley, S. G. Acinas, C. Clerissi, L. Subirana et al., Exploring nucleo-cytoplasmic large DNA viruses in Tara Oceans microbial metagenomes, ISME J, vol.7, pp.1678-1695, 2013.
URL : https://hal.archives-ouvertes.fr/hal-01258223

M. Mozar and J. M. Claverie, Expanding the Mimiviridae family using asparagine synthase as a sequence bait, Virology, pp.112-122, 2014.

F. Schulz, N. Yutin, N. N. Ivanova, D. R. Ortega, T. K. Lee et al., Giant viruses with an expanded complement of translation system components, vol.356, pp.82-85, 2017.

S. C. Clouthier, E. Vanwalleghem, S. Copeland, C. Klassen, G. Hobbs et al., A new species of nucleo-cytoplasmic large DNA virus (NCLDV) associated with mortalities in Manitoba lake sturgeon Acipenser fulvescens, Dis. Aquat. Organ, vol.102, pp.195-209, 2013.

S. C. Clouthier, E. D. Anderson, G. Kurath, and R. Breyta, Molecular systematics of sturgeon nucleocytoplasmic large DNA viruses, Mol. Phylogenet. Evol, vol.128, pp.26-37, 2018.

F. Maumus, A. Epert, F. Nogué, and G. Blanc, Plant genomes enclose footprints of past infections by giant virus relatives, Nat. Commun, vol.5, p.4268, 2014.
URL : https://hal.archives-ouvertes.fr/hal-01204072

F. Maumus and G. Blanc, Study of Gene Trafficking between Acanthamoeba and Giant Viruses Suggests an Undiscovered Family of Amoeba-Infecting Viruses, Genome Biol. Evol, vol.8, pp.3351-3363, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01768349

J. R. Brister, D. Ako-adjei, Y. Bao, and O. Blinkova, NCBI viral genomes resource, Nucleic Acids Res, vol.43, pp.571-577, 2015.

A. Pagarete, T. Grébert, O. Stepanova, R. A. Sandaa, and G. Bratbak, Tsv-N1: A Novel DNA Algal Virus that Infects Tetraselmis striata, vol.7, pp.3937-3953, 2015.

H. Ogata, K. Toyoda, Y. Tomaru, N. Nakayama, Y. Shirai et al., Remarkable sequence similarity between the dinoflagellate-infecting marine girus and the terrestrial pathogen African swine fever virus, Virol. J, vol.6, 2009.

L. C. Mackinder, C. A. Worthy, G. Biggi, M. Hall, K. P. Ryan et al., A unicellular algal virus, Emiliania huxleyi virus 86, exploits an animal-like infection strategy, J. Gen. Virol, vol.90, pp.2306-2316, 2009.

N. Yutin, P. Colson, D. Raoult, and E. V. Koonin, Mimiviridae: Clusters of orthologous genes, reconstruction of gene repertoire evolution and proposed expansion of the giant virus family, Virol. J, vol.10, 2013.
URL : https://hal.archives-ouvertes.fr/inserm-00808995

K. Suhre, S. Audic, and J. M. Claverie, Mimivirus gene promoters exhibit an unprecedented conservation among all eukaryotes, Proc. Natl. Acad. Sci, vol.102, pp.14689-14693, 2005.
URL : https://hal.archives-ouvertes.fr/hal-00004653

D. Byrne, R. Grzela, A. Lartigue, S. Audic, S. Chenivesse et al., The polyadenylation site of Mimivirus transcripts obeys a stringent 'hairpin rule, Genome Res, vol.19, pp.1233-1242, 2009.

M. G. Fischer and C. A. Suttle, A virophage at the origin of large DNA transposons, Science, vol.332, pp.231-234, 2011.

C. Desnues, B. La-scola, N. Yutin, G. Fournous, C. Robert et al., Provirophages and transpovirons as the diverse mobilome of giant viruses, Proc. Natl. Acad. Sci, vol.109, pp.18078-18083, 2012.
URL : https://hal.archives-ouvertes.fr/hal-02007283

T. Mihara, H. Koyano, P. Hingamp, N. Grimsley, S. Goto et al., Taxon Richness of "Megaviridae" Exceeds those of Bacteria and Archaea in the Ocean, Microbes Environ, vol.33, pp.162-171, 2018.
URL : https://hal.archives-ouvertes.fr/hal-01978927