Craspedida Explained
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
S. 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.
References
- 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,
External links
- Craspedida at the World Register of Marine Species (WoRMS)
Notes and References
- Carr . Martin . Leadbeater . Barry S. C. . 2022-12-01 . Re-evaluating Loricate Choanoflagellate Phylogenetics: Molecular Evidence Points to the Paraphyly of Tectiform Species . Protist . 173 . 6 . 125924 . 10.1016/j.protis.2022.125924 . 1434-4610.
- Schiwitza . Sabine . Gutsche . Lennart . Freches . Eric . Arndt . Hartmut . Nitsche . Frank . 2021-06-01 . Extended divergence estimates and species descriptions of new craspedid choanoflagellates from the Atacama Desert, Northern Chile . European Journal of Protistology . 79 . 125798 . 10.1016/j.ejop.2021.125798 . 0932-4739.
- Dohrmann . Martin . Wörheide . Gert . 2017-06-15 . Dating early animal evolution using phylogenomic data . Scientific Reports . en . 7 . 1 . 3599 . 10.1038/s41598-017-03791-w . 2045-2322.
