Adaptive capacity of the habitat modifying sea urchin Centrostephanus rodgersii to ocean warming and ocean acidification: performance of early embryos.

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. METHO...

Full description

Bibliographic Details
Main Authors: Shawna A Foo, Symon A Dworjanyn, Alistair G B Poore, Maria Byrne
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3411790?pdf=render
id doaj-8b4fd4e879d2405f8791c7e50e75fc47
record_format Article
spelling doaj-8b4fd4e879d2405f8791c7e50e75fc472020-11-25T01:18:25ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0178e4249710.1371/journal.pone.0042497Adaptive capacity of the habitat modifying sea urchin Centrostephanus rodgersii to ocean warming and ocean acidification: performance of early embryos.Shawna A FooSymon A DworjanynAlistair G B PooreMaria ByrneBACKGROUND: 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.http://europepmc.org/articles/PMC3411790?pdf=render
collection DOAJ
language English
format Article
sources DOAJ
author Shawna A Foo
Symon A Dworjanyn
Alistair G B Poore
Maria Byrne
spellingShingle Shawna A Foo
Symon A Dworjanyn
Alistair G B Poore
Maria Byrne
Adaptive capacity of the habitat modifying sea urchin Centrostephanus rodgersii to ocean warming and ocean acidification: performance of early embryos.
PLoS ONE
author_facet Shawna A Foo
Symon A Dworjanyn
Alistair G B Poore
Maria Byrne
author_sort Shawna A Foo
title Adaptive capacity of the habitat modifying sea urchin Centrostephanus rodgersii to ocean warming and ocean acidification: performance of early embryos.
title_short Adaptive capacity of the habitat modifying sea urchin Centrostephanus rodgersii to ocean warming and ocean acidification: performance of early embryos.
title_full Adaptive capacity of the habitat modifying sea urchin Centrostephanus rodgersii to ocean warming and ocean acidification: performance of early embryos.
title_fullStr Adaptive capacity of the habitat modifying sea urchin Centrostephanus rodgersii to ocean warming and ocean acidification: performance of early embryos.
title_full_unstemmed Adaptive capacity of the habitat modifying sea urchin Centrostephanus rodgersii to ocean warming and ocean acidification: performance of early embryos.
title_sort adaptive capacity of the habitat modifying sea urchin centrostephanus rodgersii to ocean warming and ocean acidification: performance of early embryos.
publisher Public Library of Science (PLoS)
series PLoS ONE
issn 1932-6203
publishDate 2012-01-01
description 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.
url http://europepmc.org/articles/PMC3411790?pdf=render
work_keys_str_mv AT shawnaafoo adaptivecapacityofthehabitatmodifyingseaurchincentrostephanusrodgersiitooceanwarmingandoceanacidificationperformanceofearlyembryos
AT symonadworjanyn adaptivecapacityofthehabitatmodifyingseaurchincentrostephanusrodgersiitooceanwarmingandoceanacidificationperformanceofearlyembryos
AT alistairgbpoore adaptivecapacityofthehabitatmodifyingseaurchincentrostephanusrodgersiitooceanwarmingandoceanacidificationperformanceofearlyembryos
AT mariabyrne adaptivecapacityofthehabitatmodifyingseaurchincentrostephanusrodgersiitooceanwarmingandoceanacidificationperformanceofearlyembryos
_version_ 1725142691750084608