Endohelea References

Endohelea
Scientific classification
Domain:	Eukaryota
Clade:	Diaphoretickes
Phylum:	Cryptista
Subphylum:	Endohelia; Cavalier-Smith, 2021
Class:	Endohelea; Cavalier-Smith, 2012
Orders
	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
    - Genus Tetrahelia Cavalier-Smith 2021
- ? Order Heliomonadida Cavalier-Smith 1993 emend. Cavalier-Smith 2012
  - ? Family Heliomorphidae Cavalier-Smith & Bass 2009
    - ? Genus Heliomorpha Cavalier-Smith & Bass 2009

References

^ ^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.
^ 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.
^ 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.
^ 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
^ 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

Tree of Life: Hacrobia

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[CavSmith2022-1] 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.

[Burki2016-2] 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.

[pmid20333193-3] 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.

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