TACKLE SIGNED
TACK Superphylum and Lokiarchaeota Evolution: Dissecting the Ecology and Evolution of Archaea to Elucidate the Prokaryote to Eukaryote Transition
Total Cost €
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Project "TACKLE" data sheet
The following table provides information about the project.
| Coordinator |
UNIVERSITAT WIEN
Organization address contact info |
| Coordinator Country | Austria [AT] |
| Project website | https://archaea.univie.ac.at/research/christa-schleper-lab/tack-and-lokiarchaeota-evolution/ |
| Total cost | 2˙500˙000 € |
| EC max contribution | 2˙500˙000 € (100%) |
| Programme |
1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC)) |
| Code Call | ERC-2015-AdG |
| Funding Scheme | ERC-ADG |
| Starting year | 2016 |
| Duration (year-month-day) | from 2016-08-01 to 2021-07-31 |
Partnership
Take a look of project's partnership.
| # | ||||
|---|---|---|---|---|
| 1 | UNIVERSITAT WIEN | AT (WIEN) | coordinator | 2˙500˙000.00 |
Map
Project objective
The emergence of complex eukaryotic life forms on Earth from prokaryotic cells is one of the most fundamental questions in biology and also one of the least understood transitions in evolution. Phylogenomic studies recently indicated that the eukaryotic line of descent arose from within the TACKL superphylum of Archaea. This proposal addresses the systematic analysis of two newly discovered, but largely uncharacterized lineages of Archaea from this superphylum that mark crucial evolutionary transitions. Thaumarchaeota harbor unique ‘eukaryotic’ features and represent the sole group of Archaea that has successfully radiated into virtually any moderate habitat on Earth. The Lokiarchaeota lineage found recently in deep marine sediments forms a direct sister group of Eukaryotes and exhibits an unprecedented array of genes that might have been instrumental for the ancestor of eukaryotes to develop its cellular and genomic complexity. Obviously, the molecular and biochemical investigation of both groups is timely and important, yet, it requires easy access and cultivation. We have now discovered Lokiarchaeota in local, accessible environments and were able to successfully cultivate thermophilic Thaumarchaeota. In this proposal, we will characterize the metabolic and structural traits of these two archaeal lineages and reconstruct their evolutionary ancestry in the context of the TACKL superphylum. Beside the use of cutting edge techniques for cultivation, metagenomics and stable-isotope-based imaging, a novel method will be developed for in situ metatranscriptomic analyses of archaea. This project will give fundamental insights into the ecological success of Archaea in commonplace environments and into the biology of the closest living prokaryotic relatives of Eukaryotes. Reconstructing the ancestral gene repertoire and biological features of lineages of the TACKL superphylum will help resolve the enigma of the emergence of eukaryotes.
Publications
| year | authors and title | journal | last update |
|---|---|---|---|
| 2018 |
Ricardo J. Eloy Alves, Bui Quang Minh, Tim Urich, Arndt von Haeseler, Christa Schleper Unifying the global phylogeny and environmental distribution of ammonia-oxidising archaea based on amoA genes published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-03861-1 |
Nature Communications 9/1 | 2019-10-09 |
| 2018 |
Jessica A Kozlowski Microbial diversity of a closed salt lagoon in the Puertecitos area, Upper Gulf of California published pages: 71-90, ISSN: 0185-3880, DOI: 10.7773/cm.v44i2.2825 |
Ciencias Marinas 44/2 | 2019-10-09 |
| 2018 |
Sophie S. Abby, Michael Melcher, Melina Kerou, Mart Krupovic, Michaela Stieglmeier, Claudia Rossel, Kevin Pfeifer, Christa Schleper Candidatus Nitrosocaldus cavascurensis, an Ammonia Oxidizing, Extremely Thermophilic Archaeon with a Highly Mobile Genome published pages: , ISSN: 1664-302X, DOI: 10.3389/fmicb.2018.00028 |
Frontiers in Microbiology 9 | 2019-10-09 |
| 2019 |
Ricardo J. Eloy Alves, Melina Kerou, Anna Zappe, Romana Bittner, Sophie S. Abby, Heiko A. Schmidt, Kevin Pfeifer, Christa Schleper Ammonia Oxidation by the Arctic Terrestrial Thaumarchaeote Candidatus Nitrosocosmicus arcticus Is Stimulated by Increasing Temperatures published pages: , ISSN: 1664-302X, DOI: 10.3389/fmicb.2019.01571 |
Frontiers in Microbiology 10 | 2019-10-03 |
| 2017 |
Felix J. Elling, Martin Könneke, Graeme W. Nicol, Michaela Stieglmeier, Barbara Bayer, Eva Spieck, José R. de la Torre, Kevin W. Becker, Michael Thomm, James I. Prosser, Gerhard J. Herndl, Christa Schleper, Kai-Uwe Hinrichs Chemotaxonomic characterisation of the thaumarchaeal lipidome published pages: 2681-2700, ISSN: 1462-2912, DOI: 10.1111/1462-2920.13759 |
Environmental Microbiology 19/7 | 2019-06-13 |
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