Table 1. Current list of formally described Symbiodiniaceae species and associated diagnostic information.
| Nuclear | Mito | Chloro | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Genus
(11 total) |
Species
(39 total) |
ITS2 Type
(majority sequence) |
Symbiotic? | Cultured? | Host-specificity | Cell Size | Plate tabulation | ITS2 | LSU | msat flankers | mtCOB | mtCOX1 | cp23S | psbA ncr |
| Breviolum | B. aenigmaticum | – | U | Y | U | ND | X | D | D | D | ND | X | D | X |
| Breviolum | B. antillogorgium | B1 | Y | Y | D | ND | X | ND | ND | D | ND | X | D | X |
| Breviolum | B. dendrogyrum | B1k, B1 | Y | N | D | ND | X | D** | ND | D | ND | X | ND | D |
| Breviolum | B. endomadracis | B7 | Y | N | D | ND | X | D | ND | D | D | X | ND | D |
| Breviolum | B. faviinorum | B14, B14a, B1 | Y | N | ND | ND | X | D** | ND | D | ND | X | ND | D |
| Breviolum | B. meandrinium | B20, B1 | Y | N | ND | ND | X | D** | ND | D | ND | X | ND | D |
| Breviolum | B. minutum | B1 | Y | Y | ND | ND | X | ND | ND | D | ND | X | ND | D |
| Breviolum | B. pseudominutum | B1 | U | Y | U | ND | X | ND | ND | D | D | X | ND | X |
| Breviolum | B. psygmophilum | B2 | Y | Y | ND | ND | X | D | D | D | ND | X | D | X |
| Cladocopium | C. goreaui | C1 | Y | Y | ND | Y | ND* | ND | ND | X | D | D | ND | D |
| Cladocopium | C. infistulum | C2 | Y | Y | D | Y | ND* | D | D | X | D | D | D | X |
| Cladocopium | C. latusorum | C1b-c, C42a, C42a-b, C1c-ff | Y | N | D | Y | X | D | D | D | ND | X | X | D |
| Cladocopium | C. pacificum | C1d, C1d-t | Y | N | D | Y | X | D | D | D | ND | X | X | D |
| Cladocopium | C. thermophilum | C3 | Y | N | ND | U | X | D | ND | X | D | D | ND | D |
| Durusdinium | D. glynnii | D1, D1-4-6 | Y | N | ND | ND | X | D** | ND | D | ND | X | ND | D |
| Durusdinium | D. boreum | D15 | Y | N | ND | ND | X | D | D | D | D | X | ND | X |
| Durusdinium | D. eurythalpos | D8, D12-13, D13 | Y | N | ND | ND | X | D | D | D | ND | X | ND | X |
| Durusdinium | D. trenchii | D1a, D1-4, D1-4-6 | Y | Y | ND | ND | X | D** | ND | D | ND | X | D | D |
| Effrenium | E. voratum | E1 | N | Y | NA | M | M | M | M | X | M | X | M | M |
| Freudenthalidium | Fr. endolithicum | F3.8 | U | Y | X | D | ND | R | R | X | R | X | R | X |
| Freudenthalidium | Fr. heronense | F3.7 | U | Y | X | D | ND | R | R | X | R | X | R | X |
| Fugacium | Fu. kawagutii | F1 | U | Y | U | M | X | M | M | X | X | X | X | X |
| Gerakladium | G. endoclionum | – | Y | N | D | ND | X | X | D | X | ND | X | R | R |
| Gerakladium | G. spongiolum | – | Y | N | D | ND | X | X | ND | X | ND | X | R | R |
| Halluxium | H. pauxillum | H7 | U | Y | X | M | M | R | R | X | ND | X | R | X |
| Miliolidium | M. leei | D1.1 | U | Y | U | M | X | R | R | X | R | R | X | X |
| Philozoon | P. actiniarum | A19 | Y | N | D | D | X | D | ND | X | D | ND | ND | R |
| Philozoon | P. adriaticum | – | Y | N | D | D | X | ND | D | X | ND | ND | ND | R |
| Philozoon | P. anthopleurum | – | Y | N | D | D | X | ND | ND | X | ND | ND | ND | R |
| Philozoon | P. balanophyllum | – | Y | N | D | D | X | ND | ND | X | ND | D | ND | R |
| Philozoon | P. colossum | – | Y | N | D | D | X | ND | D | X | ND | D | D | R |
| Philozoon | P. geddesianum | – | Y | N | D | D | X | ND | ND | X | ND | D | D | R |
| Philozoon | P. medusarum | – | Y | N | D | D | X | ND | ND | X | ND | ND | ND | R |
| Philozoon | P. paranemonium | – | Y | N | D | D | X | ND | ND | X | ND | D | ND | R |
| Symbiodinium | S. microadriaticum | A1 | Y | Y | ND | ND | ND | D | D | X | D | X | ND | D |
| Symbiodinium | S. natans | – | N | Y | U | ND | ND | D | D | X | D | X | D | X |
| Symbiodinium | S. necroappetens | A13 | Y*** | N | ND | ND | ND | D | D | X | D | X | ND | D |
| Symbiodinium | S. pilosum | A2 | N | Y | U | ND | X | D | D | X | D | X | D | X |
| Symbiodinium | S. tridacnidorum | A6, A3a, A3* | Y | Y | ND | ND | ND | D** | D | X | D | X | D | X |
Notes:
Mito, Mitochondrial; Chloro, Chloroplast; R,Resolves all species within the genus; D, Diagnostic (uniquely differentiates a particular species of the genus); ND, Not diagnostic (sequence/trait identical in two or more species); M, Measured but lacking congenerics or reference material for comparison; X, Not used in species description; U, Unknown (e.g., sampled from a symbiotic habitat but not necessarily likely to be the numerically dominant symbiont); Y, Yes; N, No; NA, Not Applicable; ND*, Not diagnostic of species, but lack of elongated amphiesmal vesicles is diagnostic of Cladocopium; D**, Some ITS2 sequences may be diagnostic, but others in the in the same genome may not be; Y***, Opportunistic and occurring at background levels unless host health is compromised.
For an extended version of the table that includes authentic cultured strains, synonyms, and key references for each species, see Table S1.