Rotaria
| Rotaria | |
|---|---|
 |
|
| (A) R. neptunia, lateral view; (B) R. macrura, ventral view; (C) R. tardigrada, dorsal view; (D) R. sordida, lateral view; and (E) trophi of R. tardigrada | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Rotifera |
| Class: | Bdelloidea |
| Family: | Philodinidae |
| Genus: |
Rotaria Scopoli, 1777 |
| Species | |
|
Rotaria citrina |
|
Rotaria citrina
Rotaria macrura
Rotaria magnacalcarata
Rotaria neptunia
Rotaria neptunoida
Rotaria rotatoria
Rotaria socialis
Rotaria sordida
Rotaria tardigrada
Rotaria sp. CWB-2005
Rotaria is a genus of asexual microorganism known as a bdelloid rotifer. Analysis published in 2007 of morphology and DNA sequence data of species form the genus confirmed that despite their asexual mechanism of reproduction, two fundamental properties of species, independent evolution and ecological divergence by natural selection occurred. This demonstrates that sex is not a necessary condition for speciation.
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