气候变化领域集成服务门户(CCPortal): Reversed evolution of grazer resistance to cyanobacteria

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DOI	10.1038/s41467-021-22226-9
	Reversed evolution of grazer resistance to cyanobacteria
	Isanta-Navarro J.; Hairston N.G.; Jr.S; Beninde J.; Meyer A.; Straile D.; Möst M.; Martin-Creuzburg D.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Exploring the capability of organisms to cope with human-caused environmental change is crucial for assessing the risk of extinction and biodiversity loss. We study the consequences of changing nutrient pollution for the freshwater keystone grazer, Daphnia, in a large lake with a well-documented history of eutrophication and oligotrophication. Experiments using decades-old genotypes resurrected from the sediment egg bank revealed that nutrient enrichment in the middle of the 20th century, resulting in the proliferation of harmful cyanobacteria, led to the rapid evolution of grazer resistance to cyanobacteria. We show here that the subsequent reduction in nutrient input, accompanied by a decrease in cyanobacteria, resulted in the re-emergence of highly susceptible Daphnia genotypes. Expression and subsequent loss of grazer resistance occurred at high evolutionary rates, suggesting opposing selection and that maintaining resistance was costly. We provide a rare example of reversed evolution of a fitness-relevant trait in response to relaxed selection. © 2021, The Author(s).
语种	英语
scopus关键词	fresh water; biodiversity; crustacean; cyanobacterium; egg bank; environmental change; eutrophication; extinction risk; gene expression; nutrient dynamics; nutrient enrichment; Article; controlled study; cyanobacterium; Daphnia; eutrophication; evolutionary rate; genotype; grazer; molecular evolution; nonhuman; nutrient; pollution; reduction (chemistry); animal; chemistry; coevolution; cyanobacterium; Europe; genetic selection; genetics; growth, development and aging; human; lake; metabolism; pathogenicity; phenotype; physiology; quantitative trait; reproductive fitness; water pollution; Cyanobacteria; Daphnia; Animals; Biological Coevolution; Cyanobacteria; Daphnia; Europe; Eutrophication; Genetic Fitness; Genotype; Humans; Lakes; Phenotype; Quantitative Trait, Heritable; Selection, Genetic; Water Pollution
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251487
作者单位	Limnological Institute, University of Konstanz, Konstanz, Germany; Cornell University, Department of Ecology and Evolutionary Biology, Ithaca, United States; Zoology and Evolutionary Biology, University of Konstanz, Konstanz, Germany; University of Innsbruck, Department of Ecology, Innsbruck, Austria; Flathead Lake Biological Station, University of Montana, Polson, United States
推荐引用方式 GB/T 7714	Isanta-Navarro J.,Hairston N.G.,Jr.S,et al. Reversed evolution of grazer resistance to cyanobacteria[J],2021,12(1).
APA	Isanta-Navarro J..,Hairston N.G..,Jr.S.,Beninde J..,Meyer A..,...&Martin-Creuzburg D..(2021).Reversed evolution of grazer resistance to cyanobacteria.Nature Communications,12(1).
MLA	Isanta-Navarro J.,et al."Reversed evolution of grazer resistance to cyanobacteria".Nature Communications 12.1(2021).