Biology:Ochrophyta

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Short description: Phylum of algae

Ochrophyta
Dense kelp forest with understorey at Partridge Point near Dave's Caves, Cape Peninsula
Dense kelp forest with understory at Partridge Point near Dave's Caves, Cape Peninsula
Scientific classification e
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Clade: Stramenopiles
Phylum: Gyrista
Subphylum: Ochrophytina
Classes
Synonyms
  • Heterokontophyta van den Hoek et al., 1978
  • Ochrista Cavalier-Smith, 1986[1][2]
  • Stramenochromes Leipe et al., 1994[3]

Ochrophyta is a group of mostly photosynthetic heterokonts.[4][5] Their plastid is of red algal origin.[6]

The classification of the group is still being worked out. Some authors (e.g., Cavalier-Smith) divide it into two subphyla, Phaeista Cavalier-Smith 1995 (comprising Hypogyristea and Chrysista in some classifications, or Limnista and Marista in others) and Khakista Cavalier-Smith, 2000 (comprising Bolidomonas and diatoms).[7] Others prefer not to use the subphyla, listing only lower taxa (e.g., Reviers, 2002, Guiry & Guiry, 2014).[citation needed]

Phylogeny

Based on the work of Ruggiero et al. (2015)[8] and on Silar (2016).[9]

  Ochrophyta  
  Khakista  
 

Bolidophyceae
(Guillou & Chretiennot-Dinet 1999)

 
 

Bacillariophyceae – diatoms
(Haeckel 1878)

 
 
  Phaeista  
  Hypogyrista  
 

Dictyochophyceae
(Silva 1980)

 
 

Pelagophyceae
(Andersen & Saunders, 1993)

 
 
  Chrysista  
  Eustigmista  
 

Pinguiophyceae
(Kawachi et al. 2002)

 
 

Eustigmatophyceae
(Hibberd & Leedale 1971)

 
 
 
  Phagochrysia  
 

Picophagea
(Cavalier-Smith 2006)

 
 
 

Synchromophyceae
(Horn & Wilhelm 2007)

 
 
 

Leukarachnion
(Geitler 1942)

 
 

Chrysophyceae – golden-brown algae
(Pascher 1914)

 
 
 
 
  Xanthophytina  
  Raphidoistia  

Raphidophyceae s.l.

 
  Fucistia  
 

Phaeophyceae – brown algae
(Hansgirg 1886)

 
 
 

Chrysomerophyceae
(Cavalier-Smith 1995)

 
 
 

Phaeothamniophyceae s.l.
(Andersen & Bailey 1998)

 
 

Xanthophyceae – yellow-green algae
(Allorge 1930)
(emend. Fritsch 1935)

 
 
 
 
 
 
 
 
 

References

  1. ↑ Cavalier-Smith, T. (1986). The kingdom Chromista, origin and systematics. In: Round, F.E. and Chapman, D.J. (eds.). Progress in Phycological Research. 4: 309–347.
  2. ↑ Reviers, B. de. (2006). Biologia e Filogenia das Algas. Editora Artmed, Porto Alegre, p. 157.
  3. ↑ Reviers, B. de. (2006). Biologia e Filogenia das Algas. Editora Artmed, Porto Alegre, pp. 15-16.
  4. ↑ Thomas Cavalier-Smith; Ema E.-Y. Chao (2006). "Phylogeny and megasystematics of phagotrophic heterokonts (kingdom Chromista)". Journal of Molecular Evolution 62 (4): 388–420. doi:10.1007/s00239-004-0353-8. PMID 16557340. Bibcode: 2006JMolE..62..388C. 
  5. ↑ Ingvild Riisberga; Russell J. S. Orr; Ragnhild Kluge; Kamran Shalchian-Tabrizi; Holly A. Bowers; Vishwanath Patil; Bente Edvardsen; Kjetill S. Jakobsen (2009). "Seven gene phylogeny of heterokonts". Protist 160 (2): 191–204. doi:10.1016/j.protis.2008.11.004. PMID 19213601. 
  6. ↑ Updating algal evolutionary relationships through plastid genome sequencing: did alveolate plastids emerge through endosymbiosis of an ochrophyte?
  7. ↑ "Heterokontophyta". SHIGEN. National Institute of Genetics. http://www.shigen.nig.ac.jp/algae_tree/HeterokontophytaE.html. 
  8. ↑ Ruggiero, Michael A. (2015). "Higher level classification of all living organisms". PLoS One 10 (4): e0119248. doi:10.1371/journal.pone.0119248. PMID 25923521. Bibcode: 2015PLoSO..1019248R. 
  9. ↑ Silar, Philippe (2016). "Protistes eucaryotes: Origine, evolution et biologie des microbes eucaryotes". Université Paris Cité. pp. 1–462. https://hal.archives-ouvertes.fr/hal-01263138. 

Wikidata ☰ Q1048772 entry





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