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  1. More Images

    TACK

    Clade of Archaea

    TACK is a group of archaea, its name an acronym for Thaumarchaeota, Aigarchaeota, Crenarchaeota, and Korarchaeota, the first groups discovered. They are found in different environments ranging from acidophilic thermophiles to mesophiles and psychrophiles and with different types of metabolism, predominantly anaerobic and chemosynthetic. TACK is a clade that is sister to the Asgard branch that gave rise to the eukaryotes. It has been proposed that the TACK clade be classified as Crenarchaeota and that the traditional "Crenarchaeota" be classified as a class called "Sulfolobia", along with the other phyla with class rank or order. After including the kingdom category into ICNP, the only validly published name of this group is kingdom Thermoproteati. Wikipedia

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  2. en.wikipedia.org

    TACK is a group of archaea, its name an acronym for Thaumarchaeota (now Nitrososphaerota), Aigarchaeota, Crenarchaeota (now Thermoproteota), and Korarchaeota, the first groups discovered.They are found in different environments ranging from acidophilic thermophiles to mesophiles and psychrophiles and with different types of metabolism, predominantly anaerobic and chemosynthetic. [4]
  3. astrobiology.nasa.gov

    7 days agoA team of microbiologists, led by Thijs Ettema of Uppsala University in Sweden, were studying microbial dark matter from a subset of the TACK supergroup, called the Deep-Sea Archaeal Group (DSAG). Little is known about the DSAG , but Ettema and his colleagues hoped that these deep-ocean-dwelling organisms might offer new insights into the ...
  4. pubmed.ncbi.nlm.nih.gov

    Here, we provide evidence for a scenario in which this archaeal parent emerged from within the 'TACK' superphylum that comprises the Thaumarchaeota, Crenarchaeota and Korarchaeota, as well as the recently proposed phylum 'Aigarchaeota'. In support of this view, functional and comparative genomics studies have unearthed an increasing number of ...
    Author:Lionel Guy, Thijs J.G. EttemaPublished:2011
  5. sciencedirect.com

    Anything beyond these points is subject to heated debate, mostly regarding the nature of the archaeal contribution to the proto-eukaryote. Two main schools of thought can be distinguished (Box 1).According to the first school, Archaea and Eukarya are sister clades that shared a common ancestor, following the classical 'Woesean' three-pronged classification of the domains of life [3].
    Author:Lionel Guy, Thijs J.G. EttemaPublished:2011
  6. sciencedirect.com

    The observations described above are best compatible with a scenario in which the archaeal parent of eukaryotes, represented by a deeply-rooting TACK lineage, harbored a full complement of currently recognized archaeo-eukaryotic signature genes, including those universally present in Archaea and eukaryotes, and those present in only a subset of archaeal lineages (Figure 1e).
    Author:Lionel Guy, Thijs J.G. EttemaPublished:2011
  7. PDF-1.7 %âãÏÓ 276 0 obj /Linearized 1 /O 281 /H [ 2685 819 ] /L 373658 /E 78351 /N 8 /T 368019 >> endobj xref 276 95 0000000016 00000 n 0000002251 00000 n 0000002548 00000 n 0000002579 00000 n 0000002644 00000 n 0000003504 00000 n 0000003906 00000 n 0000003972 00000 n ...
  8. link.springer.com

    TACK is the acronym for a group of archaea originated from the names of the first identified phyla (Thaumarchaeota, Aigarchaeota, Crenarchaeota, and Korarchaeota). They have been identified in diverse extreme environments like those at high temperature (thermophiles), low temperature (psychrophiles), and low pH (acidophiles). Most members of ...
  9. semanticscholar.org

    An overview of state-of-the-art cultivation-independent genomics approaches is provided, and how these methods were used to obtain draft genome sequences of several novel members of the TACK superphylum are demonstrated, including Lokiarchaeum, two representatives of the Miscellaneous Crenarchaeotal Group (Bathyarchaeota), and a Kor Archaeum ...
  10. royalsocietypublishing.org

    an unresolved eukaryotes plus TACK supergroup [19]. All of these topologies are consistent with an eocyte hypothesis broadened in scope to include the newly discovered lineages. By contrast, a supertree analysis of single-copy protein families found in Bacteria, Archaea including Crenarchaeota, and eukaryotes, was interpreted
  11. Lineages belonging to the TACK supergroup are shaded in teal, Euryarchaeota are in purple, while the orange shadings indicate lineages of nano-sized archaea proposed to form the 'DPANN' supergroup. Polytomies (mutiple apparently simultaneous branchings) highlight uncertainties about phylogenetic relationships between lineages.

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