Chromerida

Chromerida is a phylum of unicellular alveolates,[1] which includes photosynthetic species Chromera velia[1] and Vitrella brassicaformis.[2] General features of the phylum include spherical cells each with a thick cell wall, chloroplast present with chlorophyll a only (no chlorophyll b or c), and an internal developing flagellum at some lifestages.

Chromerida
Scientific classification
Domain:
Eukaryota
(unranked):
SAR
(unranked):
Alveolata
Phylum:
Chromerida

Moore et al., 2008
Families

They often live in close association with corals, and studies suggest their closest relatives is the parasitic group Apicomplexa, which evolved from photosynthetic ancestors, making Chromerida the last remaining photosynthetic members of an otherwise parasitic branch within Alveolata.[3]

Carter Lab at University of Sydney has undertaken new experiments to isolate novel Chromerids, using the same methods that were used to isolate Chromera velia and Vitrella brassicaformis. These methods were agreed at the First Chromera Conference and Workshop held at the Heron Island Research Station, Queensland, Australia from November 21–25, 2011.

References
  1. Moore RB; Oborník M; Janouskovec J; Chrudimský T; Vancová M; Green DH; Wright SW; Davies NW; et al. (February 2008). "A photosynthetic alveolate closely related to apicomplexan parasites". Nature. 451 (7181): 959–963. Bibcode:2008Natur.451..959M. doi:10.1038/nature06635. PMID 18288187. S2CID 28005870.
  2. Oborník, M; Modrý, D; Lukeš, M; Cernotíková-Stříbrná, E; Cihlář, J; Tesařová, M; Kotabová, E; Vancová, M; Prášil, O; Lukeš, J (2012). "Morphology, Ultrastructure and Life Cycle of Vitrella brassicaformis n. sp., n. gen., a Novel Chromerid from the Great Barrier Reef". Protist. 163 (2): 306–323. doi:10.1016/j.protis.2011.09.001. PMID 22055836.
  3. Woo, Y. H.; Ansari, H.; Otto, T. D.; Klinger, C. M.; Kolisko, M.; Michálek, J.; Saxena, A.; Shanmugam, D.; Tayyrov, A.; Veluchamy, A.; Ali, S.; Bernal, A.; Del Campo, J.; Cihlář, J.; Flegontov, P.; Gornik, S. G.; Hajdušková, E.; Horák, A.; Janouškovec, J.; Katris, N. J.; Mast, F. D.; Miranda-Saavedra, D.; Mourier, T.; Naeem, R.; Nair, M.; Panigrahi, A. K.; Rawlings, N. D.; Padron-Regalado, E.; Ramaprasad, A.; et al. (2015). "Chromerid genomes reveal the evolutionary path from photosynthetic algae to obligate intracellular parasites". eLife. 4: e06974. doi:10.7554/eLife.06974. PMC 4501334. PMID 26175406.

Sources


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