Nucleariid

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Nucleariids
Nuclearia thermophila
Scientific classification
Domain: Eukarya
(unranked): Opisthokonts
Order: Nucleariida

The nucleariids are a group of amoebae[1] with filose pseudopods, known mostly from soils and freshwater. They are distinguished from the superficially similar vampyrellids mainly by having mitochondria with discoid cristae.

Classification[edit]



Plantae



Chromalveolata




                       

Amoebozoa


Opisthokonts 


Choanozoa



Animalia





Nucleariids



Fungi





One view of the great kingdoms and their stem groups.[2]


Nucleariids are opisthokonts,[3] the group which includes animals, fungi and several smaller groups. Several studies place the nucleariids as a sister group to the fungi.[4][5]

Characteristics[edit]

Nucleariids are usually small, up to about 50 μm in size.

According to a 2009 paper, Fonticula, a cellular slime mold, is an opisthokont and more closely related to Nuclearia than to fungi.[6]

References[edit]

  1. ^ Zettler; Nerad, T.; O'Kelly, C.; Sogin, M. (2001). "The nucleariid amoebae: more protists at the animal-fungal boundary". The Journal of eukaryotic microbiology 48 (3): 293–297. doi:10.1111/j.1550-7408.2001.tb00317.x. PMID 11411837.  edit
  2. ^ Phylogeny based on:
  3. ^ a b Yoshida M, Nakayama T, Inouye I (January 2009). "Nuclearia thermophila sp. nov. (Nucleariidae), a new nucleariid species isolated from Yunoko Lake in Nikko (Japan)". European journal of protistology 45 (2): 147–155. doi:10.1016/j.ejop.2008.09.004. PMID 19157810. 
  4. ^ Steenkamp, E.T.; Wright, J.; Baldauf, S.L. (2006). "The Protistan Origins of Animals and Fungi". Molecular Biology and Evolution 23 (1): 93–106. doi:10.1093/molbev/msj011. PMID 16151185. 
  5. ^ Shalchian-Tabrizi K, Minge MA, Espelund M, et al (2008). "Multigene phylogeny of choanozoa and the origin of animals". In Aramayo, Rodolfo. PLoS ONE 3 (5): e2098. doi:10.1371/journal.pone.0002098. PMC 2346548. PMID 18461162. 
  6. ^ Matthew W. Brown, Frederick W. Spiegel and Jeffrey D. Silberman (2009). "Phylogeny of the "Forgotten" Cellular Slime Mold, Fonticula alba, Reveals a Key Evolutionary Branch within Opisthokonta". Molecular Biology and Evolution 26 (12): 2699–2709. doi:10.1093/molbev/msp185. PMID 19692665.