Craspedida
From Wikipedia, the free encyclopedia
Order of single-celled organisms
| Craspedida | |
|---|---|
| phase contrast image of Monosiga brevicollis | |
| Scientific classification Edit this classification | |
| Domain: | Eukaryota |
| Class: | Choanoflagellatea |
| Order: | Craspedida Cavalier-Smith, 1997, emend. Nitsche et al. 2011 |
| Families | |
Craspedida is an order of choanoflagellate, with members with an exclusively organic covering. Crown group craspedids (and perhaps crown group choanoflagellates if Acanthoecida arose within Craspedida[1] ) appeared 422,78 million years ago.[2] Although a previous study from 2017 recovered the divergence of the crown group choanoflagellates (craspedids) at 786.62 million years.[3]
Craspedid genera
[edit ]Codonosiga
[edit ]Main article: Codonosiga
Proterospongia
[edit ]Main article: Proterospongia
Salpingoeca
[edit ]Main article: Salpingoeca
Salpingoeca rosetta has been named for the rosette-shaped colonies formed by its cells. Recent studies show a bacterial sulfonolipid, called rosette inducing factor (RIF-1) produced by Algoriphagus machipongonensis triggers colony formation in S. rosetta.[citation needed ]
References
[edit ]- ^ Carr, Martin; Leadbeater, Barry S. C. (2022年12月01日). "Re-evaluating Loricate Choanoflagellate Phylogenetics: Molecular Evidence Points to the Paraphyly of Tectiform Species". Protist. 173 (6): 125924. doi:10.1016/j.protis.2022.125924 . ISSN 1434-4610.
- ^ Schiwitza, Sabine; Gutsche, Lennart; Freches, Eric; Arndt, Hartmut; Nitsche, Frank (2021年06月01日). "Extended divergence estimates and species descriptions of new craspedid choanoflagellates from the Atacama Desert, Northern Chile". European Journal of Protistology. 79: 125798. doi:10.1016/j.ejop.2021.125798. ISSN 0932-4739.
- ^ Dohrmann, Martin; Wörheide, Gert (2017年06月15日). "Dating early animal evolution using phylogenomic data". Scientific Reports. 7 (1): 3599. doi:10.1038/s41598-017-03791-w. ISSN 2045-2322. PMC 5472626 .
- Extended phylogeny of the Craspedida (Choanomonada). Alexandra Jeuck, Hartmut Arndt and Frank Nitsche, European Journal of Protistology, Volume 50, Issue 4, August 2014, Pages 430–443, doi:10.1016/j.ejop.201406001
External links
[edit ]- Media related to Craspedida at Wikimedia Commons
- 'Craspedida at the World Register of Marine Species (WoRMS)
