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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.

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

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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