Symbiont type and environmental factors affect transcriptome-wide gene expression in the coral .

Reef-building corals may harbor genetically distinct lineages of endosymbiotic dinoflagellates in the genus , which have been shown to affect important colony properties, including growth rates and resilience against environmental stress. However, the molecular processes underlying these differences are not well understood. In this study, we used whole transcriptome sequencing (RNA-seq) to assess gene expression differences between 27 samples of the coral predominantly hosting two different types in clades C and D.