Editing Amoeba
Content that violates any copyrights will be deleted. Encyclopedic content must be verifiable through citations to reliable sources.
Latest revision | Your text | ||
Line 179: | Line 179: | ||
|grouplabel1={{clade labels|label1=[[Excavata|Eozoa]]|top1=17%|label2='''Sarcodina'''|top2=40%}} |
|grouplabel1={{clade labels|label1=[[Excavata|Eozoa]]|top1=17%|label2='''Sarcodina'''|top2=40%}} |
||
}} |
}} |
||
|caption=The 'amoeboflagellate' hypothesis by [[Thomas Cavalier-Smith]], where higher eukaryotes evolved from amoeboid phyla.<ref name="Cavalier-Smith-1997" |
|caption=The 'amoeboflagellate' hypothesis by [[Thomas Cavalier-Smith]], where higher eukaryotes evolved from amoeboid phyla.<ref name="Cavalier-Smith-1997">{{rp|244}} |
||
}} |
}} |
||
In the final decades of the 20th century, a series of molecular phylogenetic analyses confirmed that Sarcodina was not a [[monophyletic]] group, and that amoebae evolved from flagellate ancestors.<ref name="Pawlowski-2008"/> The protozoologist [[Thomas Cavalier-Smith]] proposed that the ancestor of most eukaryotes was an [[amoeboflagellate]] much like modern [[heterolobosea]]ns, which in turn gave rise to a paraphyletic Sarcodina from which other groups (e.g., alveolates, animals, plants) evolved by a secondary loss of the amoeboid phase. In his scheme, the Sarcodina were divided into the more primitive '''Eosarcodina''' (with the phyla Reticulosa and Mycetozoa) and the more derived '''Neosarcodina''' (with the phyla [[Amoebozoa]] for lobose amoebae and Rhizopoda for filose amoebae).<ref name="Cavalier-Smith-1997">{{cite journal|last1=Cavalier-Smith|first1=Thomas|title=Amoeboflagellates and Mitochondrial Cristae in Eukaryote Evolution: Megasystematics of the New Protozoan Subkingdoms Eozoa and Neozoa|journal=Archiv für Protistenkunde|date=1996–1997|volume=147|issue=3–4|pages=237–258|doi=10.1016/S0003-9365(97)80051-6}}</ref> |
In the final decades of the 20th century, a series of molecular phylogenetic analyses confirmed that Sarcodina was not a [[monophyletic]] group, and that amoebae evolved from flagellate ancestors.<ref name="Pawlowski-2008"/> The protozoologist [[Thomas Cavalier-Smith]] proposed that the ancestor of most eukaryotes was an [[amoeboflagellate]] much like modern [[heterolobosea]]ns, which in turn gave rise to a paraphyletic Sarcodina from which other groups (e.g., alveolates, animals, plants) evolved by a secondary loss of the amoeboid phase. In his scheme, the Sarcodina were divided into the more primitive '''Eosarcodina''' (with the phyla Reticulosa and Mycetozoa) and the more derived '''Neosarcodina''' (with the phyla [[Amoebozoa]] for lobose amoebae and Rhizopoda for filose amoebae).<ref name="Cavalier-Smith-1997">{{cite journal|last1=Cavalier-Smith|first1=Thomas|title=Amoeboflagellates and Mitochondrial Cristae in Eukaryote Evolution: Megasystematics of the New Protozoan Subkingdoms Eozoa and Neozoa|journal=Archiv für Protistenkunde|date=1996–1997|volume=147|issue=3–4|pages=237–258|doi=10.1016/S0003-9365(97)80051-6}}</ref> |