Editing Pyrenoid (section)

==Diversity==

Pyrenoids are found in algal lineages,<ref name=king /> irrespective of whether the chloroplast was inherited from a single [[endosymbiotic theory|endosymbiotic event]] (e.g. [[archaeplastida|green and red algae]], but not in [[glaucophytes]]) or multiple endosymbiotic events ([[diatoms]], [[dinoflagellates]], [[coccolithophores]], [[cryptomonad|cryptophytes]], [[chlorarachniophytes]], and [[euglenozoa]]). Some algal groups, however, lack pyrenoids altogether: [[Florideophyceae|"higher" red algae]] and [[Cyanidiophyceae|extremophile red algae]], the green alga genera ''[[Chloromonas]]'' and ''[[Mougeotiopsis]]'',<ref>{{cite journal | pmc=9632326 | date=2022 | last1=Hess | first1=S. | last2=Williams | first2=S. K. | last3=Busch | first3=A. | last4=Irisarri | first4=I. | last5=Delwiche | first5=C. F. | last6=De Vries | first6=S. | last7=Darienko | first7=T. | last8=Roger | first8=A. J. | last9=Archibald | first9=J. M. | last10=Buschmann | first10=H. | last11=von Schwartzenberg | first11=K. | last12=De Vries | first12=J. | title=A phylogenomically informed five-order system for the closest relatives of land plants | journal=Current Biology  | volume=32 | issue=20 | pages=4473–4482.e7 | doi=10.1016/j.cub.2022.08.022 | pmid=36055238 | bibcode=2022CBio...32E4473H }}</ref> and "[[golden algae]]". Pyrenoids are usually considered to be poor [[taxonomy (biology)|taxonomic markers]] and may have evolved independently many times.<ref>{{cite journal|pmid=23345319 |date=2013 |last1=Meyer |first1=M. |last2=Griffiths |first2=H. |title=Origins and diversity of eukaryotic CO2-concentrating mechanisms: Lessons for the future |journal=Journal of Experimental Botany |volume=64 |issue=3 |pages=769–786 |doi=10.1093/jxb/ers390 }}.</ref>