Editing Alveolate (section)

==Development==
The development of plastids among the alveolates is intriguing. Cavalier-Smith proposed the alveolates developed from a chloroplast-containing ancestor, which also gave rise to the [[Chromista]] (the [[chromalveolate]] hypothesis). Other researchers have speculated that the alveolates originally lacked plastids and possibly the dinoflagellates and Apicomplexa acquired them separately. However, it now appears that the alveolates, the dinoflagellates, the Chromerida and the [[Heterokont|heterokont algae]] acquired their plastids from a red alga with evidence of a common origin of this organelle in all these four clades.<ref name=Janouskovec2010>{{cite journal | last1 = Janouskovec | first1 = J | last2 = Horák | first2 = A | last3 = Oborník | first3 = M | last4 = Lukes | first4 = J | last5 = Keeling | first5 = PJ | year = 2010 | title = A common red algal origin of the apicomplexan, dinoflagellate, and heterokont plastids | journal = Proc Natl Acad Sci USA | volume = 107 | issue = 24| pages = 10949–54 | doi=10.1073/pnas.1003335107 | pmid=20534454 | pmc=2890776| bibcode = 2010PNAS..10710949J | doi-access = free }}</ref>