气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and growth rate of Emiliania huxleyi in lab experiment

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.823153
	Seawater carbonate chemistry and growth rate of Emiliania huxleyi in lab experiment
	Lohbeck; Kai T; Riebesell; Ulf; Collins; Sinéad; Reusch; Thorsten B H
发布日期	2012-11-28
数据集类型	dataset
英文关键词	Bottles or small containers/Aquaria ( 20 L) ; Emiliania huxleyi ; Growth/Morphology ; Haptophyta ; Laboratory experiment ; Laboratory strains ; Light ; North Atlantic ; Pelagos ; Phytoplankton ; Salinity ; Single species
英文简介	Predicting the impacts of environmental change on marine organisms, food webs, and biogeochemical cycles presently relies almost exclusively on short-term physiological studies, while the possibility of adaptive evolution is often ignored. Here, we assess adaptive evolution in the coccolithophore Emiliania huxleyi, a well-established model species in biological oceanography, in response to ocean acidification. We previously demonstrated that this globally important marine phytoplankton species adapts within 500 generations to elevated CO2. After 750 and 1000 generations, no further fitness increase occurred, and we observed phenotypic convergence between replicate populations. We then exposed adapted populations to two novel environments to investigate whether or not the underlying basis for high CO2-adaptation involves functional genetic divergence, assuming that different novel mutations become apparent via divergent pleiotropic effects. The novel environment "high light" did not reveal such genetic divergence whereas growth in a low-salinity environment revealed strong pleiotropic effects in high CO2 adapted populations, indicating divergent genetic bases for adaptation to high CO2. This suggests that pleiotropy plays an important role in adaptation of natural E. huxleyi populations to ocean acidification. Our study highlights the potential mutual benefits for oceanography and evolutionary biology of using ecologically important marine phytoplankton for microbial evolution experiments.
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/217575
推荐引用方式 GB/T 7714	Lohbeck,Kai T,Riebesell,et al. Seawater carbonate chemistry and growth rate of Emiliania huxleyi in lab experiment.2012-11-28.https://doi.org/10.1594/PANGAEA.823153.