Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 562848
Title Exploring microbial dark matter to resolve the deep archaeal ancestry of eukaryotes
Author(s) Saw, Jimmy H.; Spang, Anja; Zaremba-Niedzwiedzka, Katarzyna; Juzokaite, Lina; Dodsworth, Jeremy A.; Murugapiran, Senthil K.; Colman, Dan R.; Takacs-Vesbach, Cristina; Hedlund, Brian P.; Guy, Lionel; Ettema, Thijs J.G.
Source Philosophical Transactions of the Royal Society B. Biological sciences 370 (2015)1678. - ISSN 0962-8436
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) Archaea - Eukaryogenesis - Metagenomics - Microbial diversity - Single-cell genomics - Tree of life

The origin of eukaryotes represents an enigmatic puzzle, which is still lacking a number of essential pieces. Whereas it is currently accepted that the process of eukaryogenesis involved an interplay between a host cell and an alphaproteobacterial endosymbiont, we currently lack detailed information regarding the identity and nature of these players. A number of studies have provided increasing support for the emergence of the eukaryotic host cell from within the archaeal domain of life, displaying a specific affiliation with the archaeal TACK superphylum. Recent studies have shown that genomic exploration of yet-uncultivated archaea, the so-called archaeal ‘dark matter’, is able to provide unprecedented insights into the process of eukaryogenesis. Here, we provide an overview of state-of-the-art cultivation-independent approaches, and demonstrate how these methods were used to obtain draft genome sequences of several novel members of the TACK superphylum, including Lokiarchaeum, two representatives of the Miscellaneous Crenarchaeotal Group (Bathyarchaeota), and a Korarchaeum-related lineage. The maturation of cultivation-independent genomics approaches, as well as future developments in next-generation sequencing technologies, will revolutionize our current view of microbial evolution and diversity, and provide profound new insights into the early evolution of life, including the enigmatic origin of the eukaryotic cell.

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