Symbiodinium diversity in the sea anemone Entacmaea quadricolor on the east Australian coast

Pontasch, S., Scott, A., Hill, R., Bridge, T., Fisher, P.L., and Davy, S.K. (2014) Symbiodinium diversity in the sea anemone Entacmaea quadricolor on the east Australian coast. Coral Reefs, 33 (2). pp. 537-542.

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Abstract

The diversity of Symbiodinium spp. in Entacmaea quadricolor was analysed from five locations along ~2,100 km on the east coast of Australia using denaturing gradient gel electrophoresis (DGGE) of the internal transcribed spacer 2 region (ITS2) combined with bacterial cloning. DGGE revealed that E. quadricolor predominantly associated with six types of clade C (four of which are novel) and that most anemones harboured multiple types simultaneously. Anemones from southern locations associated with a mixed assemblage of C25 and a variant of C3. This assemblage also dominated the central location, but was absent at the northern location. At central and northern sites, two novel variants of C42(type2) and C1 were found. Anemones hosting C42(type2) also showed a low abundance of variants of C3 and C1, and E1 was found in one sample, as revealed by bacterial cloning. The occurrence of geographically distinct ITS2 types or a consortium of types might reflect a need to optimise physiological performance of the symbiosis at different latitudes.

Item ID: 31568
Item Type: Article (Refereed Research - C1)
Keywords: zooxanthellae; ITS2; coral reef; cnidarian; symbiosis
ISSN: 1432-0975
Funders: Royal Society of New Zealand, Australian Research Council (ARC), Marine Ecology Research Centre, Southern Cross University
Projects and Grants: Royal Society of New Zealand Marsden Fund (VUW0902), Australian Research Council (ARC) (DP120101360)
Date Deposited: 26 Mar 2014 23:58
FoR Codes: 06 BIOLOGICAL SCIENCES > 0604 Genetics > 060411 Population, Ecological and Evolutionary Genetics @ 75%
06 BIOLOGICAL SCIENCES > 0602 Ecology > 060202 Community Ecology (excl Invasive Species Ecology) @ 25%
SEO Codes: 96 ENVIRONMENT > 9603 Climate and Climate Change > 960305 Ecosystem Adaptation to Climate Change @ 25%
96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960805 Flora, Fauna and Biodiversity at Regional or Larger Scales @ 75%
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