Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14907 |
Molecular mechanisms of acclimation to long-term elevated temperature exposure in marine symbioses | |
Monteiro, Homere J. Alves1; Brahmi, Chloe1; Mayfield, Anderson B.2,3; Vidal-Dupiol, Jeremie4; Lapeyre, Bruno5; Le Luyer, Jeremy1 | |
2019-12-19 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | France; Taiwan; USA |
英文摘要 | Seawater temperature rise in French Polynesia has repeatedly resulted in the bleaching of corals and giant clams. Because giant clams possess distinctive ectosymbiotic features, they represent a unique and powerful model for comparing molecular pathways involved in (a) maintenance of symbiosis and (b) acquisition of thermotolerance among coral reef organisms. Herein, we explored the physiological and transcriptomic responses of the clam hosts and their photosynthetically active symbionts over a 65 day experiment in which clams were exposed to either normal or environmentally relevant elevated seawater temperatures. Additionally, we used metabarcoding data coupled with in situ sampling/survey data to explore the relative importance of holobiont adaptation (i.e., a symbiont community shift) versus acclimation (i.e., physiological changes at the molecular level) in the clams' responses to environmental change. We finally compared transcriptomic data to publicly available genomic datasets for Symbiodiniaceae dinoflagellates (both cultured and in hospite with the coral Pocillopora damicornis) to better tease apart the responses of both hosts and specific symbiont genotypes in this mutualistic association. Gene module preservation analysis revealed that the function of the symbionts' photosystem II was impaired at high temperature, and this response was also found across all holobionts and Symbiodiniaceae lineages examined. Similarly, epigenetic modulation appeared to be a key response mechanism for symbionts in hospite with giant clams exposed to high temperatures, and such modulation was able to distinguish thermotolerant from thermosensitive Cladocopium goreaui ecotypes; epigenetic processes may, then, represent a promising research avenue for those interested in coral reef conservation in this era of changing global climate. |
英文关键词 | co-expression network analysis giant clams metabarcoding RNA-Seq Symbiodiniaceae thermo-acclimation |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000503262700001 |
WOS关键词 | CORAL-ALGAL SYMBIOSIS ; PACIFIC GIANT CLAMS ; TRIDACNA-GIGAS L ; THERMAL TOLERANCE ; CLIMATE-CHANGE ; SYMBIODINIUM-MICROADRIATICUM ; HEAT-STRESS ; DIVERSITY ; REEF ; MAXIMA |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225334 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.UPF, UMR Ecosyst Insulaires Oceaniens, IFREMER, ILM,IRD, F-98719 Tahiti, French Polynesi, France; 2.Natl Museum Marine Biol & Aquarium, Checheng, Taiwan; 3.NOAA, Atlantic Oceanog & Meteorol Lab, Miami, FL 33149 USA; 4.Univ Montpellier, CNRS, IHPE, Univ Perpignan Via Domitia, Montpellier, France; 5.EPHE CNRS UPVD, USR3278 CRIOBE, Labex CORAIL, Moorea, Polynesie Franc, France |
推荐引用方式 GB/T 7714 | Monteiro, Homere J. Alves,Brahmi, Chloe,Mayfield, Anderson B.,et al. Molecular mechanisms of acclimation to long-term elevated temperature exposure in marine symbioses[J]. GLOBAL CHANGE BIOLOGY,2019. |
APA | Monteiro, Homere J. Alves,Brahmi, Chloe,Mayfield, Anderson B.,Vidal-Dupiol, Jeremie,Lapeyre, Bruno,&Le Luyer, Jeremy.(2019).Molecular mechanisms of acclimation to long-term elevated temperature exposure in marine symbioses.GLOBAL CHANGE BIOLOGY. |
MLA | Monteiro, Homere J. Alves,et al."Molecular mechanisms of acclimation to long-term elevated temperature exposure in marine symbioses".GLOBAL CHANGE BIOLOGY (2019). |
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