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We examined the diversity of the photosynthetic dinoflagellate, Symbiodinium, over a 2-year period in two invertebrates from Australia’s Northern Great Barrier Reef: the nudibranch Phyllodesmium lizardensis and an octocoral of the genus Heteroxenia. In years one and two, we used denaturing gradient gel electrophoresis with internal transcribed spacer 2(More)
Studies on the biodiversity and evolution of octocorals are hindered by the incomplete knowledge of their taxonomy, which is due to few reliable morphological characters. Therefore, assessment of true species diversity within abundant and ecologically important families such as Xeniidae is difficult. Mitochondrial genes provide a reliable solution to this(More)
In this study, we examined two non-scleractinian taxa, the rare nudibranch Phyllodesmium lizardensis and Bayerxenia sp., the octocoral on which the nudibranch lives and feeds, to investigate the effect of experimental heat stress on their symbioses with Symbiodinium. Bleaching has not been studied in nudibranchs. Bayerxenia sp. belongs to the alcyonacea(More)
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