| Amphidinium | |
|---|---|
| |
| Lateral view of Amphidinium sulcatum. amy., amyloid body; chr., chromatophore; ep., anterior part of cell in front of transverse furrow; fl.p., flagellar pore; l.f., longitudinal furrow; n., cell nucleus; tr.f., transverse furrow (with flagellum); vac., vacuole. | |
Scientific classification 
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| Domain: | Eukaryota |
| Clade: | Diaphoretickes |
| Clade: | SAR |
| Clade: | Alveolata |
| Phylum: | Myzozoa |
| Superclass: | Dinoflagellata |
| Class: | Dinophyceae |
| Order: | Gymnodiniales |
| Family: | Gymnodiniaceae |
| Genus: | Amphidinium Clap. & J.Lachm. 1859 |
Amphidinium is a genus of dinoflagellates. The type for the genus is Amphidinium operculatum Claparède & Lachmann. The genus includes the species Amphidinium carterae which is used as a model organism.[1]
As dinoflagellates, Amphidinium spp. have chloroplasts. The Amphidinium chloroplast genome is unusual in not having a single contiguous circular genome.[2][3] Instead, chloroplast genes encoded in chloroplast DNA are found on numerous 2-3 kbp minicircles,[2][3] analogous to plasmids. Most minicircles have only a few protein-coding genes; many have just a single gene.[2][3] There are reports of minicircles that do not have known transcripts, like in the Amphidinium carterae chloroplast genome,[3] although these were not found in the Symbiodinium sp. Clade C3 chloroplast genome.[2] Minicircle-derived transcripts can be processed in ways not typical of eukaryotes, including the addition of a 3' poly(U) tail,[3] as opposed to the typical poly(A) tail derived from polyadenylation of eukaryotic transcripts. Minicircle-derived antisense transcripts are also produced, but without 3' poly(U) tails.[3]
| Amphidinium |
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Corals and coral reefs
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| Hexacorallia |
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| Octocorallia |
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| Coral reefs |
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| Coral regions |
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| Coral diseases |
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| Conservation |
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| Symbiotic algae |
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| Other |
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