Opendata, web and dolomites


Cells and giant viruses: a win-win co-evolution

Total Cost €


EC-Contrib. €






 VIREVOL project word cloud

Explore the words cloud of the VIREVOL project. It provides you a very rough idea of what is the project "VIREVOL" about.

permafrost    mimivirus    virions    life    ancestor    genome    shaped    giant    preliminary    cellular    rod    1000    plastic    spherical    discovery    reaching    thousands    risk    isolated    structure    progressive    tegument    pandoraviridae    megavirus    microscopy    pithovirus    characterization    raised    relatives    chilensis    packaging    unveil    team    hypothesize    world    trajectory    evolutionary    discovered    amphora    made    rigid    share    links    proteins    machinery    genes    mollivirus    responsible    families    mimiviridae    transition    followed    synthesis    virus    pandoravirions    micro    cycle    homologues    3mb    particles    infectious    roughly    resembling    virion    viral    amoebal    light    despite       hijacking    hosts    siberian    external       gain    last    mollivirions    intriguing    led    revisit    tree    mb    icosahedral    pandoraviruses    living    encoding    cellulose    origin    nuclear    morphologies    host    relative    viruses    visible    first    laboratory    aquatic    questions    coevolution    cytoplasmic    sizes    continue    organization    encodes    position   

Project "VIREVOL" data sheet

The following table provides information about the project.


Organization address
address: RUE MICHEL ANGE 3
city: PARIS
postcode: 75794

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Total cost 2˙246˙453 €
 EC max contribution 2˙246˙453 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2018-ADG
 Funding Scheme ERC-ADG
 Starting year 2019
 Duration (year-month-day) from 2019-10-01   to  2024-09-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

The discovery of Mimivirus, the first icosahedral virus visible by light microscopy, was followed by the characterization of many other relatives. Its aquatic relative Megavirus chilensis, has a 1.2 Mb genome and encodes more than 1000 proteins, 2/3 unique to the Mimiviridae. Their infectious cycle is cytoplasmic. During the last 10 years, my laboratory discovered three other giant virus families: -the pandoraviridae, with their unique amphora-shaped 1µm long virion morphologies, genome sizes reaching 3Mb and encoding thousands of proteins, most of which without homologues in the cellular or the viral world – the mollivirus, which was isolated from a 30,000 years old Siberian permafrost sample, presents common features with the pandoraviruses. They share 60 unique genes and the roughly spherical (0.6µm) mollivirions present an external tegument resembling the pandoravirions. Both viruses have an early nuclear phase – the pithovirus, despite its amphora-shaped virions, has a fully cytoplasmic cycle. Our work raised questions on the origin of these intriguing viral families and their position in the tree of life. My project is unique as it will address the coevolution of these viruses and their amoebal hosts by focusing on specific features of the virions in two overall aims. 1) Promising preliminary results led us to hypothesize that a progressive transition from the rigid icosahedral virions to the more plastic amphora-shaped particles was made possible through hijacking of the host cellulose synthesis pathway by the ancestor of pandoraviruses. 2) The icosahedral mimivirus package its genome in a complex rod-shaped structure. My team will investigate this structure to unveil possible evolutionary links with the genome packaging systems in the cellular world. We will characterize the machinery responsible for such organization. These two high-risk/high-gain aims will continue to revisit the concept of virus and their evolutionary trajectory in the living world.


List of deliverables.
Data management Plan Open Research Data Pilot 2020-02-27 15:23:50

Take a look to the deliverables list in detail:  detailed list of VIREVOL deliverables.

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The information about "VIREVOL" are provided by the European Opendata Portal: CORDIS opendata.

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