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Heritability of the Symbiodinium community in vertically- and horizontally-transmitting broadcast spawning corals

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dc.contributor Australian Inst Marine Sci
dc.contributor Coll Sci & Engn
dc.contributor ARC Ctr Excellence Coral Reef Studies
dc.contributor James Cook Univ
dc.contributor AIMS JCU
dc.contributor Australian Institute of Marine Science
dc.contributor James Cook University
dc.contributor.author Bay, Line K.
dc.contributor.author Willis, Bette L.
dc.contributor.author Quigley, Kate M.
dc.date.accessioned 2017-11-05T18:06:01Z
dc.date.accessioned 2017-11-15T03:08:38Z
dc.date.available 2017-11-05T18:06:01Z
dc.date.available 2017-11-15T03:08:38Z
dc.date.issued 2017-08-15
dc.identifier.citation Quigley KM, Willis BL, Bay LK (2017) Heritability of the Symbiodinium community in vertically- and horizontally-transmitting broadcast spawning corals. Scientific Reports 7: 8219
dc.identifier.issn 2045-2322
dc.identifier.uri http://epubs.aims.gov.au/11068/11541
dc.description.abstract The dinoflagellate-coral partnership influences the coral holobiont's tolerance to thermal stress and bleaching. However, the comparative roles of host genetic versus environmental factors in determining the composition of this symbiosis are largely unknown. Here we quantify the heritability of the initial Symbiodinium communities for two broadcast-spawning corals with different symbiont transmission modes: Acropora tenuis has environmental acquisition, whereas Montipora digitata has maternal transmission. Using high throughput sequencing of the ITS-2 region to characterize communities in parents, juveniles and eggs, we describe previously undocumented Symbiodinium diversity and dynamics in both corals. After one month of uptake in the field, Symbiodinium communities associated with A. tenuis juveniles were dominated by A3, C1, D1, A-type CCMP828, and D1a in proportional abundances conserved between experiments in two years. M. digitata eggs were predominantly characterized by C15, D1, and A3. In contrast to current paradigms, host genetic influences accounted for a surprising 29% of phenotypic variation in Symbiodinium communities in the horizontally-transmitting A. tenuis, but only 62% in the vertically-transmitting M. digitata. Our results reveal hitherto unknown flexibility in the acquisition of Symbiodinium communities and substantial heritability in both species, providing material for selection to produce partnerships that are locally adapted to changing environmental conditions.
dc.description.sponsorship We would like to thank Margaux Hein Mikhail Matz, Marie Strader, Greg Torda, Sarah Davies, Natalie Andrade, Tess Hill and the staff at Orpheus Island Research Station for help with field work and spawning at Orpheus Island. We also thank Dr. Ray Berkelmans and the crew on the RV Ferguson for help with the collection of corals from the northern GBR. All samples of A. tenuis from Wilkie Island and Orpheus Island and M. digitata from Orpheus Island were collected under Great Barrier Reef Marine Park Authority permits: G12/35236.1, G13/36318.1, and G10/33312.1. Funding was provided by the Australian Research Council through ARC CE1401000020, ARC DP130101421 to B.L.W. and AIMS to L.K.B.
dc.language English
dc.subject Multidisciplinary Sciences
dc.subject FUNGIA-SCUTARIA
dc.subject IMMUNE-SYSTEM
dc.subject SCLERACTINIAN CORALS
dc.subject REEF CORAL
dc.subject CLIMATE-CHANGE
dc.subject PHYLOGENETIC ANALYSES
dc.subject PORITES-ASTREOIDES
dc.subject ACROPORA CORALS
dc.subject NATURAL BLEACHING EVENT
dc.subject MUSTARD HILL CORAL
dc.subject Science & Technology - Other Topics
dc.title Heritability of the Symbiodinium community in vertically- and horizontally-transmitting broadcast spawning corals
dc.type journal article
dc.identifier.doi 10.1038/s41598-017-08179-4
dc.identifier.wos WOS:000407570000096


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