Plants+HC+SAR megagroup

The Archaeplastida+HC+SAR megagroup (Archaeplastida comprising the red algae, the green algae, and the land plants) is a group of eukaryotes proposed by Burki et al. (2008).[1]

Plants+HC+SAR megagroup
Scientific classification
Domain: Eukaryota
(unranked): Diaphoretickes
unranked groups
Synonyms
  • Corticata

It includes:

This description includes all Bikonts that are not excavates and Hemimastigophora. It is also referred to as Diaphoretickes (/ˌdaɪəfəˈrɛtɪkiːz/) or the SAR/HA Supergroup, or the Corticata with Rhizaria now included in the SAR supergroup.[2] The name Corticata comes from Cavalier-Smith's hypothesis about the common origin of the cortical alveoli of glaucophytes and alveolates.[3]

It was previously described as the sum of Archaeplastida, Rhizaria, and chromalveolates.[4] However, this description is obsolete, largely due to the discovery that chromalveolata was not monophyletic.

It includes most of the species engaging in photosynthesis, except for the Euglenozoa and Cyanobacteria.

References
  1. Burki, F.; Shalchian-Tabrizi, K.; Pawlowski, J. (2008). "Phylogenomics reveals a new 'megagroup' including most photosynthetic eukaryotes". Biology Letters. 4 (4): 366–369. doi:10.1098/rsbl.2008.0224. PMC 2610160. PMID 18522922.
  2. Cavalier-Smith, Thomas; Chao, Ema E.; Snell, Elizabeth A.; Berney, Cédric; Fiore-Donno, Anna Maria; Lewis, Rhodri (2014). "Multigene eukaryote phylogeny reveals the likely protozoan ancestors of opisthokonts (animals, fungi, choanozoans) and Amoebozoa". Molecular Phylogenetics and Evolution. 81: 71–85. doi:10.1016/j.ympev.2014.08.012. ISSN 1055-7903.
  3. Cavalier-Smith, Thomas (January 2003). "Protist phylogeny and the high-level classification of Protozoa". European Journal of Protistology. 39 (4): 338–348. doi:10.1078/0932-4739-00002.
  4. Hampl, V.; Hug, L.; Leigh, J.; Dacks, J.; Lang, B.; Simpson, A.; Roger, A. (2009). "Phylogenomic analyses support the monophyly of Excavata and resolve relationships among eukaryotic "supergroups"". Proceedings of the National Academy of Sciences of the United States of America. 106 (10): 3859–3864. Bibcode:2009PNAS..106.3859H. doi:10.1073/pnas.0807880106. PMC 2656170. PMID 19237557.


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