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首页> 外文期刊>Marine ecology progress series >Leveraging new knowledge of Symbiodinium community regulation in corals for conservation and reef restoration
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Leveraging new knowledge of Symbiodinium community regulation in corals for conservation and reef restoration

机译：利用珊瑚中共生菌群落调控的新知识进行保护和礁石恢复

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Recent advances in quantifying the heritability of Symbiodinium communities associated with corals across a range of reproductive and symbiont transmission modes raise the possibility that corals have more options for responding to a changing environment than previously thought. Here we synthesize recent findings to develop a new perspective on coral-symbiont transmission and explore the relevance of these findings to the development of novel coral reef conservation and management tools. Evidence of diversity in Symbiodinium communities among juvenile corals can be attributed to variation in the host genotype acquired. This highlights the importance of inheriting a genetic architecture for regulating Symbiodinium community composition that is flexible enough to respond to changing environmental conditions. Emerging evidence from 8 species now exists that the strength and fidelity of coral-Symbiodinium associations differ from current paradigms based on host reproductive and symbiont transmission mode. This evidence supports that rapid adaptive responses of the holobiont through variations in Symbiodinium community structure are possible. Importantly, evidence of heritable variation in Symbiodinium communities indicates that adaptation through natural selection on this community is possible and that the strength of the response will depend on estimates of both heritability and phenotypic variance. We also present a novel analysis applying these results to quantitative genetic theory to model manipulative adaptive shifts. In combination, recent heritability estimates (h(2)) reviewed here highlight that inheritance of genes for regulating Symbiodinium community structure represents a previously unquantified mechanism by which juvenile corals may adapt to increasing environmental pressures, particularly those due to climate change.
机译：在量化一系列生殖和共生生物传播方式下与珊瑚有关的共生菌群落的遗传力方面的最新进展增加了珊瑚有比以前认为的更多的应对环境变化的可能性。在这里，我们综合最近的发现，以开发有关珊瑚共生体传播的新观点，并探讨这些发现与新型珊瑚礁保护和管理工具的相关性。少年珊瑚中共生菌群落的多样性证据可归因于获得的宿主基因型的变异。这突出了继承遗传结构以调节共生菌群落组成的重要性，该构架足够灵活以应对不断变化的环境条件。现在有来自8个物种的新证据表明，珊瑚-共生生物协会的强度和保真度不同于当前基于宿主繁殖和共生体传播模式的范例。该证据支持通过Symbiodinium群落结构的变化快速实现全环抱动物的适应性反应。重要的是，Symbiodinium群落中遗传变异的证据表明，可以通过对该群落的自然选择进行适应，并且响应强度取决于遗传力和表型变异的估计。我们还提出了一种新颖的分析方法，将这些结果应用到定量遗传理论上，以模拟操纵性自适应移位。综合起来，这里回顾的最新遗传力估计值（h（2））突出表明，用于调节共生菌群落结构的基因的遗传代表了一种先前未量化的机制，通过这种机制，幼小珊瑚可能适应不断增加的环境压力，特别是由于气候变化而产生的压力。

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