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GAIA SIGNED

A Genomic and Macroevolutionary Approach to Studying Diversification in an Insect-Plant Arms Race

Total Cost €

0

EC-Contrib. €

0

Partnership

0

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 GAIA project word cloud

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

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Project "GAIA" data sheet

The following table provides information about the project.

Coordinator
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS 

Organization address
address: RUE MICHEL ANGE 3
city: PARIS
postcode: 75794
website: www.cnrs.fr

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 1˙500˙000 €
 EC max contribution 1˙500˙000 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2019-STG
 Funding Scheme ERC-STG
 Starting year 2020
 Duration (year-month-day) from 2020-03-01   to  2025-02-28

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS FR (PARIS) coordinator 1˙500˙000.00

Map

 Project objective

The exuberant proliferation of herbivorous insects is often attributed to their association with plants, making their interactions of particular importance to understanding what is driving their vast diversity. Early biologists exploring the underlying factors proposed the hypothesis of coevolution (and the escape and radiate model). Despite general support for this hypothesis, the macroevolutionary and genomic consequences of the origins and evolutionary dynamics of host-plant shifts remain elusive. Recent results illustrate the need for a multidisciplinary approach to assessing the role of host plants in shaping insect diversity at macroevolutionary scales. Using the swallowtail butterflies (Papilionidae) and their host plants, this project will develop a macroevolutionary and genomic framework to studying the origin and evolution of an arms race through time and space. We will build a complete species-level phylogeny for Papilionidae relying on whole-genome sequencing for all species. This time-calibrated phylogeny will be combined with species traits to estimate ancestral host-plant preferences and subsequent host-plant shifts. We will reconstruct dated phylogenies of the main host-plant families to estimate whether the butterflies and their host plants diversified concurrently through time and space. Diversification rates will be estimated for shifting/non-shifting and prey/non-prey clades. A matching genomic survey will to look for genes under positive selection by comparing sets of phylogenetic branches that experienced a host-plant shift versus branches without such a shift. Transcriptomes will be characterized for caterpillars and their plants to identify and pinpoint the genes involved in the arms race, as well as to compare them across the swallowtail tree of life. With this ambitious research proposal, we aim to provide answers to longstanding and fundamental evolutionary questions on the mechanisms behind ecological interactions over long timescales.

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

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