10.5061/DRYAD.K57P6
Kenkel, Carly D.
University of Southern California
Australian Institute of Marine Science
Moya, Aurelie
James Cook University
Strahl, Julia
Australian Institute of Marine Science
Carl von Ossietzky University of Oldenburg
Humphrey, Craig
Australian Institute of Marine Science
Bay, Line K.
Australian Institute of Marine Science
Data from: Functional genomic analysis of corals from natural CO2-seeps
reveals core molecular responses involved in acclimatization to ocean
acidification
Dryad
dataset
2018
Carbon dioxide
Symbiosis
Lipid metabolism
Symbiodinium spp.
Acclimatization
Acropora millepora
2018-07-07T00:00:00Z
2018-07-07T00:00:00Z
en
https://doi.org/10.1111/gcb.13833
11487707 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Little is known about the potential for acclimatization or adaptation of
corals to ocean acidification and even less about the molecular mechanisms
underpinning these processes. Here we examine global gene expression
patterns in corals and their intracellular algal symbionts from two
replicate population pairs in Papua New Guinea that have undergone
long-term acclimatization to natural variation in pCO2. In the coral host,
only 61 genes were differentially expressed in response to pCO2
environment, but the pattern of change was highly consistent between
replicate populations, likely reflecting the core expression homeostasis
response to ocean acidification. Functional annotations highlight lipid
metabolism and a change in the stress response capacity of corals as key
parts of this process. Specifically, constitutive downregulation of
molecular chaperones was observed, which may impact response to combined
climate-change related stressors. Elevated CO2 has been hypothesized to
benefit photosynthetic organisms but expression changes of in hospite
Symbiodinium in response to acidification were greater and less consistent
among reef populations. This population-specific response suggests hosts
may need to adapt not only to an acidified environment, but also to
changes in their Symbiodinium populations that may not be consistent among
environments, adding another challenging dimension to the physiological
process of coping with climate change.
Photographs of sampled coralsPhotographs were taken at the time of
collection. Image file name indicates coral colony number corresponding to
raw TagSeq reads. Labels within images contain date/time/GPS
information.MilneBayCollections_Small.zipR script for DESeq analyses and
tables of read countsAnnotated R script for replicating DESeq analyses as
described in the linked publication. Input files are tables of TagSeq read
counts for host and symbionts, post-quality trimming and mapping to the
Acropora millepora and Symbiodinium clade C reference transcriptomes,
respectively.RscriptInputFiles.zip
Papua New Guinea
Milne Bay Province