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PLoS One
2012 Jan 01;78:e42497. doi: 10.1371/journal.pone.0042497.
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Adaptive capacity of the habitat modifying sea urchin Centrostephanus rodgersii to ocean warming and ocean acidification: performance of early embryos.
Abstract
BACKGROUND: Predicting effects of rapid climate change on populations depends on measuring the effects of climate stressors on performance, and potential for adaptation. Adaptation to stressful climatic conditions requires heritable genetic variance for stress tolerance present in populations.
METHODOLOGY/PRINCIPAL FINDINGS: We quantified genetic variation in tolerance of early development of the ecologically important sea urchin Centrostephanus rodgersii to near-future (2100) ocean conditions projected for the southeast Australian global change hot spot. Multiple dam-sire crosses were used to quantify the interactive effects of warming (+2-4 °C) and acidification (-0.3-0.5 pH units) across twenty-seven family lines. Acidification, but not temperature, decreased the percentage of cleavage stage embryos. In contrast, temperature, but not acidification decreased the percentage of gastrulation. Cleavage success in response to both stressors was strongly affected by sire identity. Sire and dam identity significantly affected gastrulation and both interacted with temperature to determine developmental success. Positive genetic correlations for gastrulation indicated that genotypes that did well at lower pH also did well in higher temperatures.
CONCLUSIONS/SIGNIFICANCE: Significant genotype (sire) by environment interactions for both stressors at gastrulation indicated the presence of heritable variation in thermal tolerance and the ability of embryos to respond to changing environments. The significant influence of dam may be due to maternal provisioning (maternal genotype or environment) and/or offspring genotype. It appears that early development in this ecologically important sea urchin is not constrained in adapting to the multiple stressors of ocean warming and acidification. The presence of tolerant genotypes indicates the potential to adapt to concurrent warming and acidification, contributing to the resilience of C. rodgersii in a changing ocean.
Figure 1. Reaction norms showing the different responses of eight male genotypes to temperature and pH.The reaction norms show percentage of cleavage stage embryos (A,B) and gastrulae (C,D) in experimental temperatures pooled for pH (A,C) and in experimental pH levels pooled for temperature (B,D). Lines represent the mean percentage of paternal half-siblings (n = 8 males). The eight male genotypes and standard errors are indicated.
Figure 2. Reaction norms showing the different responses of nine female genotypes to temperature and pH.The reaction norms show percentage of cleavage stage embryos (A,B) and gastrulae (C,D) in experimental temperatures pooled for pH (A,C) and in experimental pH levels pooled for temperature (B,D). Lines represent the mean percentage of maternal half-siblings (n = 9 females). The nine female genotypes and standard errors are indicated.
Astles,
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Astles,
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Baumann,
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Byrne,
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,
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Byrne,
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,
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Császár,
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Davidson,
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2002,
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,
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Dupont,
Impact of near-future ocean acidification on echinoderms.
2010,
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,
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Eisen,
Genotype by environment interactions and genetic correlations involving two environmental factors.
1983,
Pubmed
Evans,
Assessing the potential for egg chemoattractants to mediate sexual selection in a broadcast spawning marine invertebrate.
2012,
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Evans,
Sources of genetic and phenotypic variance in fertilization rates and larval traits in a sea urchin.
2007,
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,
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Galletly,
Genetic mechanisms of pollution resistance in a marine invertebrate.
2007,
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Gienapp,
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2008,
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Hamdoun,
Embryo stability and vulnerability in an always changing world.
2007,
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Hammond,
Thermal tolerance of Strongylocentrotus purpuratus early life history stages: mortality, stress-induced gene expression and biogeographic patterns.
2010,
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,
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Havenhand,
Near-future levels of ocean acidification reduce fertilization success in a sea urchin.
2008,
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,
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Hoffmann,
Climate change and evolutionary adaptation.
2011,
Pubmed
Hofmann,
Living in the now: physiological mechanisms to tolerate a rapidly changing environment.
2010,
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Kelly,
Limited potential for adaptation to climate change in a broadly distributed marine crustacean.
2012,
Pubmed
Kroeker,
Meta-analysis reveals negative yet variable effects of ocean acidification on marine organisms.
2010,
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Levitan,
Selection on gamete recognition proteins depends on sex, density, and genotype frequency.
2006,
Pubmed
,
Echinobase
Palumbi,
All males are not created equal: fertility differences depend on gamete recognition polymorphisms in sea urchins.
1999,
Pubmed
,
Echinobase
Pandolfi,
Projecting coral reef futures under global warming and ocean acidification.
2011,
Pubmed
Pease,
Genetic variability in tolerance to copper contamination in a herbivorous marine invertebrate.
2010,
Pubmed
Pechenik,
Larval experience and latent effects--metamorphosis is not a new beginning.
2006,
Pubmed
,
Echinobase
Sanford,
Local adaptation in marine invertebrates.
2011,
Pubmed
Sconzo,
Acquisition of thermotolerance in sea urchin embryos correlates with the synthesis and age of the heat shock proteins.
1986,
Pubmed
,
Echinobase
Sheppard Brennand,
Impact of ocean warming and ocean acidification on larval development and calcification in the sea urchin Tripneustes gratilla.
2010,
Pubmed
,
Echinobase
Sunday,
Quantifying rates of evolutionary adaptation in response to ocean acidification.
2011,
Pubmed
,
Echinobase
Tadros,
The maternal-to-zygotic transition: a play in two acts.
2009,
Pubmed
,
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Todgham,
Transcriptomic response of sea urchin larvae Strongylocentrotus purpuratus to CO2-driven seawater acidification.
2009,
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,
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Tomanek,
Proteomic response to elevated PCO2 level in eastern oysters, Crassostrea virginica: evidence for oxidative stress.
2011,
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Willett,
Potential fitness trade-offs for thermal tolerance in the intertidal copepod Tigriopus californicus.
2010,
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Yeh,
Adaptive phenotypic plasticity and the successful colonization of a novel environment.
2004,
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