Salpingoeca rosetta
| Salpingoeca rosetta | |
|---|---|
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| Scientific classification | |
| Domain: | Eukaryota |
| (unranked): | Opisthokonta |
| (unranked): | |
| Class: | Choanoflagellatea |
| Order: | Choanoflagellida |
| Family: | |
| Genus: | |
| Species: | S. rosetta
|
| Binomial name | |
| Salpingoeca rosetta Dayel et al., 2011[1]
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| Subspecies or strains | |
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| Synonyms | |
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Salpingoeca rosetta is a species of
Similar low level
Unlike S. rosetta, sponges also have other cell-types that can perform different functions. Also, the collar cells of sponges beat within canals in the sponge body, whereas Salpingoeca rosetta's collar cells reside on the inside and it lacks internal canals. Despite these minor differences, there is strong evidence that Proterospongia and Metazoa are highly related.[citation needed
Its genome has been studied as a model for Premetazoan evolution.[2] The genome is 55 megabases in size. Homologs of cell adhesion, neuropeptide and glycosphingolipid metabolism genes are present in the genome.
Reproduction cycle
S. rosetta has a sexual cycle during which it transitions between haploid and diploid stages.[3] When nutrients become limiting, haploid cultures of S. rosetta become diploid. This ploidy shift coincides with mating during which small, flagellated cells fuse with larger flagellated cells. Evidence has also been obtained for historical mating and recombination in S. rosetta.
S. rosetta can be induced to undergo sexual reproduction by the marine bacterium Vibrio fischeri.[4] A single protein of V. fischeri, EroS, fully recapitulates the aphrodesiac-like activity of living V. fischeri.
Colonial organization
S. rosetta was named for the rosette-shaped colonies formed by its cells.
References
External links
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