Table 3.
Taxonomic Group | Symbiogenetic Origin |
---|---|
Archaeaplastida | |
Green algae (Chlorophyta) | Primary cyanobacterial endosymbiosis |
Glaucophytes (order Chlorococcales) | Primary cyanobacterial endosymbiosis |
Red algae (Rhodophyta) | Primary cyanobacterial endosymbiosis |
Land plants (Embryophyta) | Primary cyanobacterial endosymbiosis |
Euglyphid amoeba Paulinella chromatophora | Primary cyanobacterial endosymbiosis (Synechococcus-Prochloron clade) |
Euglenids (flagellated algae) | Secondary green algal endosymbiosis |
Chlorarachniophytes (marine algae) | Secondary green algal endosymbiosis |
Chromalveolates (multiple lineages including organisms responsible for a large fraction of atmospheric oxygen, such as brown algae, coccolithotrphs, cryptophytes and diatoms) | Secondary red algal endosymbiosis |
Dinoflagellates (flagellated marine and fresh water protists) | Tertiary chromalveolate endosymbiosis or serial green or red alga endosymbioses |
Warnowiid dinoflagellates with camera eye-like “ocelloids” | Ocelloid “cornea” formed by mitochondria and “retina” formed by red algae-derived plastids |
A referenced version of this table is available online as Supplementary Table S3.