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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.

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

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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