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The genome of Aiptasia, a sea anemone model for coral symbiosis

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https://ir.library.oregonstate.edu/concern/articles/0z708z056

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  • The most diverse marine ecosystems, coral reefs, depend upon a functional symbiosis between a cnidarian animal host (the coral) and intracellular photosynthetic dinoflagellate algae. The molecular and cellular mechanisms underlying this endosymbiosis are not well understood, in part because of the difficulties of experimental work with corals. The small sea anemone Aiptasia provides a tractable laboratory model for investigating these mechanisms. Here we report on the assembly and analysis of the Aiptasia genome, which will provide a foundation for future studies and has revealed several features that may be key to understanding the evolution and function of the endosymbiosis. These features include genomic rearrangements and taxonomically restricted genes that may be functionally related to the symbiosis, aspects of host dependence on alga-derived nutrients, a novel and expanded cnidarian-specific family of putative pattern-recognition receptors that might be involved in the animal–algal interactions, and extensive lineage-specific horizontal gene transfer. Extensive integration of genes of prokaryotic origin, including genes for antimicrobial peptides, presumably reflects an intimate association of the animal–algal pair also with its prokaryotic microbiome.
  • Freely available online through the PNAS open access option.
  • Keywords: coral reefs, endosymbiosis, dinoflagellate, pattern-recognition receptors, horizontal gene transfer
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  • Baumgarten, S., Simakov, O., Esherick, L. Y., Liew, Y. J., Lehnert, E. M., Michell, C. T., ... & Voolstra, C. R. (2015). The genome of Aiptasia, a sea anemone model for coral symbiosis. Proceedings of the National Academy of Sciences, 112(38), 11893-11898. doi:10.1073/pnas.1513318112
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  • 112
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  • 38
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  • Research reported in this publication was supported by the King Abdullah University of Science and Technology and by Grant 2629 from the Gordon and Betty Moore Foundation. L.Y.E. and E.M.L. were supported by National Science Foundation Graduate Research Fellowships, a Stanford Graduate Fellowship, and National Institutes of Health Training Grant 5 T32 HG000044. E.A.H. and A.G. were supported by funding from the Deutsche Forschungsgemeinschaft (GU 1128/3-1 to A.G.).
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file details BaumgartenGenomeofAiptasiaSeaAnemone.pdf 07/25/2017 公开
file details BaumgartenGenomeofAiptasiaSeaAnemoneAppendix.pdf 07/25/2017 公开
file details BaumgartenGenomeofAiptasiaSeaAnemoneDataset.xlsx 07/25/2017 公开