气候变化领域集成服务门户(CCPortal): Ancient climate change; antifreeze; and the evolutionary diversification of Antarctic fishes

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DOI	10.1073/pnas.1115169109
	Ancient climate change; antifreeze; and the evolutionary diversification of Antarctic fishes
	Near T.J.; Dornburg A.; Kuhn K.L.; Eastman J.T.; Pennington J.N.; Patarnello T.; Zane L.; Fernández D.A.; Jones C.D.
发表日期	2012
ISSN	0027-8424
起始页码	3434
结束页码	3439
卷号	109 期号:9
英文摘要	The Southern Ocean around Antarctica is among the most rapidly warming regions on Earth, but has experienced episodic climate change during the past 40 million years. It remains unclear how ancient periods of climate change have shaped Antarctic bio-diversity. The origin of antifreeze glycoproteins (AFGPs) in Antarctic notothenioid fishes has become a classic example of how the evolution of a key innovation in response to climate change can drive adaptive radiation. By using a time-calibrated molecular phylogeny of notothenioids and reconstructed paleoclimate, we demonstrate that the origin of AFGP occurred between 42 and 22 Ma, which includes a period of global cooling approximately 35 Ma. However, the most species-rich lineages diversified and evolved significant ecological differences at least 10 million years after the origin of AFGPs, during a second cooling event in the Late Miocene (11.6-5.3 Ma). This pattern indicates that AFGP was not the sole trigger of the notothenioid adaptive radiation. Instead, the bulk of the species richness and ecological diversity originated during the Late Miocene and into the Early Pliocene, a time co-incident with the origin of polar conditions and increased ice activity in the Southern Ocean. Our results challenge the current understanding of the evolution of Antarctic notothenioids suggesting that the ecological opportunity that underlies this adaptive radiation is not linked to a single trait, but rather to a combination of freeze avoidance offered by AFGPs and subsequent exploitation of new habitats and open niches created by increased glacial and ice sheet activity.
英文关键词	Buoyancy; Icefish; Molecular clock; Notothenioidei; Percomorpha
语种	英语
scopus关键词	antifreeze protein; adaptive radiation; Antarctica; article; climate change; cooling; evolution; fish; freezing; Miocene; molecular phylogeny; nonhuman; paleoclimate; Pliocene; priority journal; species diversity; Adaptation, Physiological; Amino Acid Sequence; Animals; Antarctic Regions; Antifreeze Proteins; Bayes Theorem; Biodiversity; Biological Evolution; Climate Change; Cold Temperature; DNA; DNA, Mitochondrial; Genetic Variation; Likelihood Functions; Oceans and Seas; Perciformes; Phylogeny; Sequence Alignment; Notothenioidei; Percomorpha; Pisces
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158938
作者单位	Near, T.J., Peabody Museum of Natural History, Yale University, New Haven, CT 06520, United States, Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520, United States; Dornburg, A., Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520, United States; Kuhn, K.L., Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520, United States; Eastman, J.T., Department of Biomedical Sciences, College of Osteopathic Medicine, Ohio University, Athens, OH 45701, United States; Pennington, J.N., Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520, United States, Ezra Stiles College, Yale University, New Haven, CT 06520, United States; Patarnello, T., Department of Public Health, Comparative Pathology and Veterinary Hygiene, Università di Padova, 35020 Legnaro, Italy; Zane, L., Department of Biology, Universitàdi Padova, 35131 Padua, Italy; Fernández, D.A., Centro Austral de Investigaciones Cient...
推荐引用方式 GB/T 7714	Near T.J.,Dornburg A.,Kuhn K.L.,et al. Ancient climate change; antifreeze; and the evolutionary diversification of Antarctic fishes[J],2012,109(9).
APA	Near T.J..,Dornburg A..,Kuhn K.L..,Eastman J.T..,Pennington J.N..,...&Jones C.D..(2012).Ancient climate change; antifreeze; and the evolutionary diversification of Antarctic fishes.Proceedings of the National Academy of Sciences of the United States of America,109(9).
MLA	Near T.J.,et al."Ancient climate change; antifreeze; and the evolutionary diversification of Antarctic fishes".Proceedings of the National Academy of Sciences of the United States of America 109.9(2012).