Distinct ITS types of Symbiodinium in Clade C correlate with cnidarian/dinoflagellate specificity during onset of symbiosis
Rodriguez-Lanetty, Mauricio, Krupp, Dave A., and Weis, Virginia M. (2004) Distinct ITS types of Symbiodinium in Clade C correlate with cnidarian/dinoflagellate specificity during onset of symbiosis. Marine Ecology Progress Series, 275. pp. 97-102.
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Abstract
This study aimed at determining whether fine-scale molecular diversity of Symbiodinium corresponds to functional differences in host/symbiont specificity during the onset of symbiosis in cnidarian/alga mutualisms. Infection experiments were conducted in aposymbiotic larvae of the scleractinian Fungia scutaria using known algal Internal Transcribed Spacer (ITS)-2 types within Clade C. Our results show that algal type is directly related to specificity during the onset of symbiosis in F. scutaria larvae. The 3 ITS symbiont types (C1f, C15 and C31) within the major Symbiodinium Clade C engaged differentially in symbiosis with coral larvae. The homologous symbiont (C1f), found in adult F. scutaria from the field, showed a significantly better association with the host larvae than the other 2 heterologous symbionts (C15 extracted from Porites compressa, and C31 from Montipora capitata). This is the first evidence that fine-scale ITS diversity of Symbiodinium confers functionality in the symbiosis.
Item ID: | 1532 |
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Item Type: | Article (Research - C1) |
ISSN: | 1616-1599 |
Keywords: | symbiosis, specificity, ITS-2 types, Symbiodinium, Scleractinia |
Date Deposited: | 01 Jun 2007 |
FoR Codes: | 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 0% 06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology @ 0% 06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology @ 0% |
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