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Flexibility in Algal Endosymbioses Shapes Growth in Reef Corals
TLDR
It is shown that initial uptake of zooxanthellae by juvenile corals during natural infection is nonspecific, the association is flexible and characterized by a change in (dominant) Zooxanthella strains over time; and growth rates of experimentally infected coral holobionts are partly contingent on the zooxanhellae strain harbored. Expand
Patterns of coral–dinoflagellate associations in Acropora: significance of local availability and physiology of Symbiodinium strains and host–symbiont selectivity
TLDR
P phylogenetic relationships between Symbiodinium isolates from a wide range of Acropora species are determined and the algal genotypes are plotted onto a molecular phylogeny of 28 Acropore species, using the same samples for the host and symbiont genotyping. Expand
The evolutionary history of the coral genus Acropora (Scleractinia, Cnidaria) based on a mitochondrial and a nuclear marker: reticulation, incomplete lineage sorting, or morphological convergence?
TLDR
The results indicate that many Acropora species belong to a species complex or syngameon and that morphology has little predictive value with regard to syngAMEon composition. Expand
Genetic Divergence across Habitats in the Widespread Coral Seriatopora hystrix and Its Associated Symbiodinium
TLDR
This study demonstrates that coral populations and their associated symbionts can be highly structured across habitats on a single reef, demonstrating that adaptation to the local environment has caused ecological divergence of distinct genetic groups within S. hystrix. Expand
The role of zooxanthellae in the thermal tolerance of corals: a ‘nugget of hope’ for coral reefs in an era of climate change
TLDR
It is shown that adult corals, at least in some circumstances, are capable of acquiring increased thermal tolerance and that the increased tolerance is a direct result of a change in the symbiont type dominating their tissues from Symbiodinium type C to D. Expand
Diversity of algal endosymbionts (zooxanthellae) in octocorals: the roles of geography and host relationships
TLDR
Symbiodinium diversity at the level of phylogenetic clades is lower in octocorals from the Caribbean compared to those from the GBR, but an unprecedented level of ITS1 diversity was observed within individual colonies of some Caribbean gorgonians, implying either that these simultaneously harbour multiple strains of clade B zooxanthellae, or that ITS1 heterogeneity exists within the genomes of some zooxanhellae. Expand
Onset of algal endosymbiont specificity varies among closely related species of Acropora corals during early ontogeny
TLDR
It is demonstrated that juvenile corals may survive for extended periods of time with nonhomologous Symbiodinium types and that closely related species of Acropora differ in the timing of the onset of specificity for algal symbionts. Expand
The Roles and Interactions of Symbiont, Host and Environment in Defining Coral Fitness
TLDR
These results highlight the complex interactions that occur between the coral host, the algal symbiont, and the environment to shape the fitness of the coral holobiont and will assist in predicting the responses of corals to global climate change. Expand
Conservation genetics and the resilience of reef‐building corals
TLDR
This review paper summarizes and critically evaluate studies that have employed genetics and/or molecular biology in examining questions relating to the evolution and ecology of reef‐building corals and their algal endosymbionts, and that bear relevance to coral reef conservation. Expand
Species–specific interactions between algal endosymbionts and coral hosts define their bleaching response to heat and light stress
TLDR
The results challenge speculations that associations with type D are universally most robust to thermal stress and highlight the complexity of interactions between symbiotic partners and a potential role for host factors in determining the physiological performance of reef corals. Expand
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