Scotokaryotes

The Scotokaryotes (Cavalier-Smith) is a proposed basal Neokaryote clade as sister of the Diaphoretickes. Basal Scotokaryote groupings are the Metamonads, the Malawimonas and the Podiata.[2][3] In this phylogeny the Discoba are sometimes seen as paraphyletic and basal Eukaryotes.

Scotokaryotes
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Scotokaryotes
Clades
Synonyms
  • Opimoda Derelle et al., 2015[1]

An alternative to the Unikont–Bikont division was suggested by Derelle et al. in 2015,[1] where they proposed the acronyms Opimoda–Diphoda respectively, as substitutes to the older terms (Opimoda includes the old 'unikonts', plus some former bikonts; Diphoda includes most of the old 'bikonts', but not all). The name Opimoda is formed from the letters (shown in capitals) of OPIsthokonta and aMOebozoa. In this phylogeny Discoba belongs to the Diphoda clade.

Taxonomy

A proposed cladogram is[4][5][6][7][8][9][10][11][12]

Eukaryota

Tsukubea

Discicristata

Euglenozoa

Percolozoa

Orthokaryotes

Jakobea

Neokaryotes
Corticata/Diaphoretickes/

Archaeplastida

Chromista

Hacrobia

SAR

SAR HA Supergroup/Bikont
Scotokaryotes/Opimoda/Neozoa

Metamonada

Malawimonad

Podiata

CRuMs

Amorphea/

Amoebozoa

Obazoa

Breviatea

Apusomonadida

Opisthokonta/Choanozoa

Unikont

See also

References
  1. Derelle, Romain; Torruella, Guifré; Klimeš, Vladimír; Brinkmann, Henner; Kim, Eunsoo; Vlček, Čestmír; Lang, B. Franz; Eliáš, Marek (17 February 2015). "Bacterial proteins pinpoint a single eukaryotic root". Proceedings of the National Academy of Sciences. 112 (7): E693–E699. Bibcode:2015PNAS..112E.693D. doi:10.1073/pnas.1420657112. PMC 4343179. PMID 25646484.
  2. Cavalier-Smith, Thomas (2013-05-01). "Early evolution of eukaryote feeding modes, cell structural diversity, and classification of the protozoan phyla Loukozoa, Sulcozoa, and Choanozoa". European Journal of Protistology. 49 (2): 115–178. doi:10.1016/j.ejop.2012.06.001. PMID 23085100.
  3. Cavalier-Smith, Thomas (2017). "Euglenoid pellicle morphogenesis and evolution in light of comparative ultrastructure and trypanosomatid biology: semi-conservative microtubule/strip duplication, strip shaping and transformation". European Journal of Protistology. 61 (Pt A): 137–179. doi:10.1016/j.ejop.2017.09.002. PMID 29073503.
  4. Zaremba-Niedzwiedzka, Katarzyna; Caceres, Eva F.; Saw, Jimmy H.; Bäckström, Disa; Juzokaite, Lina; Vancaester, Emmelien; Seitz, Kiley W.; Anantharaman, Karthik; Starnawski, Piotr (2017-01-11). "Asgard archaea illuminate the origin of eukaryotic cellular complexity" (PDF). Nature. advance online publication (7637): 353–358. Bibcode:2017Natur.541..353Z. doi:10.1038/nature21031. ISSN 1476-4687. OSTI 1580084. PMID 28077874. S2CID 4458094.
  5. Derelle, Romain; Torruella, Guifré; Klimeš, Vladimír; Brinkmann, Henner; Kim, Eunsoo; Vlček, Čestmír; Lang, B. Franz; Eliáš, Marek (2015-02-17). "Bacterial proteins pinpoint a single eukaryotic root". Proceedings of the National Academy of Sciences. 112 (7): E693–E699. Bibcode:2015PNAS..112E.693D. doi:10.1073/pnas.1420657112. ISSN 0027-8424. PMC 4343179. PMID 25646484.
  6. Cavalier-Smith, T.; Chao, E. E.; Snell, E. A.; Berney, C.; Fiore-Donno, A. M.; Lewis, R. (2014). "Multigene eukaryote phylogeny reveals the likely protozoan ancestors of opisthokonts (animals, fungi, choanozoans) and Amoebozoa". Molecular Phylogenetics & Evolution. 81: 71–85. doi:10.1016/j.ympev.2014.08.012. PMID 25152275.
  7. Cavalier-Smith, Thomas (2010-06-23). "Kingdoms Protozoa and Chromista and the eozoan root of the eukaryotic tree". Biology Letters. 6 (3): 342–345. doi:10.1098/rsbl.2009.0948. ISSN 1744-9561. PMC 2880060. PMID 20031978.
  8. He, Ding; Fiz-Palacios, Omar; Fu, Cheng-Jie; Fehling, Johanna; Tsai, Chun-Chieh; Baldauf, Sandra L. (2014). "An Alternative Root for the Eukaryote Tree of Life". Current Biology. 24 (4): 465–470. doi:10.1016/j.cub.2014.01.036. PMID 24508168.
  9. Cavelier Smith (2013). "Early evolution of eukaryote feeding modes, cell structural diversity, and classification of the protozoan phyla Loukozoa, Sulcozoa, and Choanozoa". European Journal of Protistology. 49 (2): 115–178. doi:10.1016/j.ejop.2012.06.001. PMID 23085100.
  10. Hug, Laura A.; Baker, Brett J.; Anantharaman, Karthik; Brown, Christopher T.; Probst, Alexander J.; Castelle, Cindy J.; Butterfield, Cristina N.; Hernsdorf, Alex W.; Amano, Yuki (2016-04-11). "A new view of the tree of life". Nature Microbiology. 1 (5): 16048. doi:10.1038/nmicrobiol.2016.48. ISSN 2058-5276. PMID 27572647.
  11. Cavalier-Smith, Thomas; Chao, Ema E.; Lewis, Rhodri (2016-06-01). "187-gene phylogeny of protozoan phylum Amoebozoa reveals a new class (Cutosea) of deep-branching, ultrastructurally unique, enveloped marine Lobosa and clarifies amoeba evolution". Molecular Phylogenetics and Evolution. 99: 275–296. doi:10.1016/j.ympev.2016.03.023. PMID 27001604.
  12. Cavalier-Smith, Thomas (2017-09-05). "Kingdom Chromista and its eight phyla: a new synthesis emphasising periplastid protein targeting, cytoskeletal and periplastid evolution, and ancient divergences". Protoplasma. 255 (1): 297–357. doi:10.1007/s00709-017-1147-3. ISSN 0033-183X. PMC 5756292. PMID 28875267.
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