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HeteroDynamic SIGNED

Evolutionary Stability of Ubiquitous Root Symbiosis

Total Cost €

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EC-Contrib. €

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Partnership

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 HeteroDynamic project word cloud

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

inability    mediating    fundamental    genetic    genomics    nuclear    evolve    beneficial    fungi    spread    carbon    agricultural    environmental    counteract    arbuscular    mycorrhizal    roots    obligate    theory    dynamic    symbiotic    asexually    variation    plants    symbiont    lifecycle    mix    am    emergence    biotrophs    multinucleate    predicts    riders    organismal    species    virtually    mixing    stabilize    colonized    single    multiple    spores    organization    fungal    450    nuclei    promiscuous    evolutionary    core    million    eukaryotes    segregation    absence    group    soil    resolve    sequestering    networks    migrate    interactions    temporally    stage    complete    ago    nucleus    terrestrial    natural    temporal    lie    mycelial    life    biology    hyphal    discriminate    interaction    facultative    genetically    specificity    extensive    ecosystems    prior    unlike    individuals    fusion    nutrient    free    instead    obtaining    cycle    nucleate    host    dynamics    discoveries    forming    thanks    ecologically    mycotrophs    genomic    successful    reproduce    heterokaryosis    symbiosis   

Project "HeteroDynamic" data sheet

The following table provides information about the project.

Coordinator
UPPSALA UNIVERSITET 

Organization address
address: VON KRAEMERS ALLE 4
city: UPPSALA
postcode: 751 05
website: www.uu.se

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 Sweden [SE]
 Project website http://www.ieg.uu.se/evolutionary-biology/rosling/research/
 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-2015-STG
 Funding Scheme ERC-STG
 Starting year 2016
 Duration (year-month-day) from 2016-04-01   to  2021-03-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UPPSALA UNIVERSITET SE (UPPSALA) coordinator 1˙500˙000.00

Map

 Project objective

Virtually all terrestrial plants depend on symbiotic interactions with fungi. Arbuscular mycorrhizal (AM) fungi evolved over 450 million years ago, are obligate biotrophs and cannot complete their lifecycle without obtaining carbon from host roots. Mediating nutrient uptake and sequestering carbon in soil this symbiosis lie at the core of all terrestrial ecosystems. Plants on the other hand are facultative mycotrophs but under natural conditions all host roots are colonized as a result of multiple beneficial effects of AM fungi. In the symbiosis, both plants and fungi are promiscuous, forming interactions across individuals and species. In the absence of host-symbiont specificity and given their inability to discriminate among partners prior to interaction, evolutionary theory predicts that “free riders” would evolve and spread. Yet AM fungi remain evolutionary and ecologically successful. I propose that this is thanks to their unique genomic organization, a temporally dynamic heterokaryosis.

Unlike other eukaryotes, AM fungi have no single nucleate stage in their life cycle, instead they reproduce asexually by forming large multinucleate spores. Genetic variation is high and nuclei can migrate and mix within extensive mycelial networks. My group has recently established a single nucleus genomics method to study genetic variation among nuclei within AM fungi. With this method I can resolve the extent of heterokaryosis in AM fungi and its temporal dynamics. I will study the emergence of “free riders” upon intra organismal segregation of genetically distinct nuclei during AM fungal adaptation to host. Further I will study how hyphal fusion and nuclear mixing counteract segregation to stabilize the symbiosis. The research program has great potential for novel discoveries of fundamental importance to evolutionary and environmental biology and will also contribute to agricultural practice and management of terrestrial ecosystems.

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