Ochrophyta

Ochrophyta
Scientific classification
Domain:	Eukaryota
(unranked):	SAR
(unranked):	Halvaria
(unranked):	Stramenopiles
Phylum:	Ochrophyta Cavalier-Smith, 1995[1]
Classes
Bacillariophyceae Bolidophyceae Dictyochophyceae Pinguiophyceae Eustigmatophyceae Picophagea Synchromophyceae Chrysophyceae Raphidophyceae Chrysomerophyceae Phaeothamniophyceae Xanthophyceae Phaeophyceae
Synonyms
Heterokontophyta van den Hoek et al., 1978 Ochrista Cavalier-Smith, 1986[2][3] Stramenochromes Leipe et al., 1994[4]

Ochrophyta is a group of mostly photosynthetic heterokonts.^[5][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).

Phylogeny

Based on the following works of Ruggiero et al. 2015 & Silar 2016.^[8][9]

Khakista Bolidophyceae Guillou & Chretiennot-Dinet 1999 Bacillariophyceae Haeckel 1878 (Diatoms) Phaeista Hypogyrista Dictyochophyceae Silva 1980 s.l. Chrysista Eustigmista Pinguiophyceae Kawachi et al. 2002 Eustigmatophyceae Hibberd & Leedale 1971 Phagochrysia Picophagea Cavalier-Smith 2006 Synchromophyceae Horn & Wilhelm 2007 Leukarachnion Geitler 1942 Chrysophyceae Pascher 1914 (golden-brown algae) Xanthophytina Raphidoistia Raphidophyceae s.l. Fucistia Phaeophyceae Hansgirg 1886 (brown algae) Chrysomerophyceae Cavalier-Smith 1995 Phaeothamniophyceae Andersen & Bailey 1998 s.l. Xanthophyceae Allorge 1930 emend. Fritsch 1935 (yellow-green algae)

References

1. Cavalier-Smith, T. (1995). Zooflagellate phylogeny and classification. Cytology, 37, 1010–1029.
2. 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.
3. Reviers, B. de. (2006). Biologia e Filogenia das Algas. Editora Artmed, Porto Alegre, p. 157.
4. Reviers, B. de. (2006). Biologia e Filogenia das Algas. Editora Artmed, Porto Alegre, pp. 15-16.
5. 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.
6. 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.
7. "Heterokontophyta". SHIGEN. National Institute of Genetics. Retrieved June 18, 2009.
8. Ruggiero; et al. (2015), "Higher Level Classification of All Living Organisms", PLoS ONE, 10 (4), doi:10.1371/journal.pone.0119248
9. Silar, Philippe (2016), "Protistes Eucaryotes: Origine, Evolution et Biologie des Microbes Eucaryotes", HAL archives-ouvertes: 1–462