Endohelea

Class of algae

Endohelea
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Diaphoretickes
Phylum: Cryptista
Subphylum: Endohelia
Cavalier-Smith, 2021[1]
Class: Endohelea
Cavalier-Smith, 2012
Orders[1]
  • Microhelida
  • Axomonadida

Endohelea is a proposed clade of eukaryotes that are related to Archaeplastida and the SAR supergroup.[2][3] They used to be considered heliozoans, but phylogenetically they belong to a group of microorganisms known as Cryptista.[1]

Classification

Based on studies done by Cavalier-Smith, Chao & Lewis in 2015, the class contained two orders: Microhelida and Heliomonadida.[4][5] However, according to a study by Cavalier-Smith, published in 2022, the order Heliomonadida is actually part of Cercozoa, and only one species of heliomonad, Tetrahelia pterbica, has been kept in Endohelea as its own order Axomonadida.[1]

  • Class Endohelea Cavalier-Smith 2012
    • Order Microhelida Cavalier-Smith 2011
      • Family Microheliellidae Cavalier-Smith 2011
        • Genus Microheliella Cavalier-Smith & Chao 2012
    • Order Axomonadida Cavalier-Smith 2012 emend. 2021[1]
      • Family Tetraheliidae Cavalier-Smith 2021
    • ? Order Heliomonadida Cavalier-Smith 1993 emend. Cavalier-Smith 2012

References

  1. ^ a b c d e Cavalier-Smith T (2022). "Ciliary transition zone evolution and the root of the eukaryote tree: implications for opisthokont origin and classification of kingdoms Protozoa, Plantae, and Fungi". Protoplasma. 259: 487–593. doi:10.1007/s00709-021-01665-7. PMC 9010356. PMID 34940909.
  2. ^ Burki F, Kaplan M, Tikhonenkov DV, Zlatogursky V, Minh BQ, Radaykina LV, Smirnov A, Mylnikov AP, Keeling PJ (January 2016). "Untangling the early diversification of eukaryotes: a phylogenomic study of the evolutionary origins of Centrohelida, Haptophyta and Cryptista". Proc Biol Sci. 283 (1823). doi:10.1098/rspb.2015.2802. PMC 4795036. PMID 26817772.
  3. ^ Burki F, Inagaki Y, Bråte J, Archibald JM, Keeling PJ, Cavalier-Smith T, et al. (July 2009). "Large-scale phylogenomic analyses reveal that two enigmatic protist lineages, telonemia and centroheliozoa, are related to photosynthetic chromalveolates". Genome Biol Evol. 1: 231–8. doi:10.1093/gbe/evp022. PMC 2817417. PMID 20333193.
  4. ^ Cavalier-Smith; Chao; Lewis (2015), "Multiple origins of Heliozoa from flagellate ancestors: New cryptist subphylum Corbihelia, superclass Corbistoma, and monophyly of Haptista, Cryptista, Hacrobia and Chromista", Molecular Phylogenetics and Evolution, 93: 331–362, doi:10.1016/j.ympev.2015.07.004, PMID 26234272
  5. ^ Yabuki, A.; et al. (2012). "Microheliella maris (Microhelida ord. n.), an ultrastructurally highly distinctive new axopodial protist species and genus, and the unity of phylum Heliozoa". Protist. 163 (3): 356–388. doi:10.1016/j.protis.2011.10.001. PMID 22153838.

External links

Wikispecies has information related to Endohelea.
  • Tree of Life: Hacrobia
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Eukaryote classification
Domain
Archaea
Bacteria
Eukaryota
(major groups
Excavata
Diaphoretickes
Hacrobia
Rhizaria
Alveolata
Stramenopiles
Plants
Amorphea
Amoebozoa
Opisthokonta
Animals
Fungi)
Amorphea
Amoebozoa
   Obazoa   
Opisthokonta
Holomycota
   Holozoa   
Filozoa
Choanozoa
Diaphoretickes
Haptista
    TSAR    
     SAR     
Rhizaria
Alveolata
Myzozoa
Stramenopiles
Bigyra
Gyrista
     CAM     
Pan-Cryptista
Cryptista
Archaeplastida
Viridiplantae
(Plants sensu lato)
Streptophyta
Excavates*
Discoba
Discicristata
Metamonada
Malawimonada
Incertae sedis
Hemimastigophora
Ancyromonadida
  • Ancyromonadidae
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CRuMs
  • ¹traditional kingdoms excluded from protists
  • *paraphyletic groups
  • bold denotes groups with over 1,000 species
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Domain
Archaea
Bacteria
Eukaryota
(major groups
Excavata
Diaphoretickes
Hacrobia
Rhizaria
Alveolata
Stramenopiles
Plants
Amorphea
Amoebozoa
Opisthokonta
Animals
Fungi)
Cryptobionta
Axomonadida
Microheliellida
Microhelida
Cryptista
Palpitophyta
Palpitea
Palpitomonadida
Katablepharidophyta
Katablepharidea
Katablepharida
Cryptophyta
Goniomonadea
Goniomonadida
Hemiarmida
Cryptophyceae
Cryptomonadales
Pyrenomonadales
Tetragonidiales
Provora
Nebulidia
Nebulidea
Nebulidida
Nibbleridia
Nibbleridea
Nibbleridida
  • Nibbleridae
Haptista
Centroheliozoa
Centrohelea
  • Spiculophryidae
Chthonida
Acanthocystida
  • Acanthocystidae
  • Marophryidae
  • Raphidocystidae
Pterocystida
  • Choanocystidae
  • Clypiferidae
  • Heterophryidae
  • Oxnerellidae
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  • Raphidiophryidae
Haptophyta
Rappephyceae
Pavlomulinales
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Rappemonadales
  • Rappemonadaceae
Pavlovophyceae
Pavlovales
Prymnesiophyceae
  • Alisphaeraceae
  • Braarudosphaeraceae
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  • Ceratolithaceae
  • coccolithophores
  • Papposphaeraceae
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Phaeocystales
  • Phaeocystaceae
Prymnesiophycidae
Prymnesiales
Calcihaptophycidae
Coccolithales
  • Calcidiscaceae
  • Coccolithaceae
  • Hymenomonadaceae
  • Reticulosphaeraceae
  • Pleurochrysidaceae
Isochrysidales
Syracosphaerales
Zygodiscales
  • Helicosphaeraceae
  • Pontosphaeraceae
  • †Zygodiscaceae
Taxon identifiers
Endohelea


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