globalchange  > 气候减缓与适应
DOI: 10.1016/j.quascirev.2017.11.037
Scopus记录号: 2-s2.0-85037524584
论文题名:
Archaeal community changes in Lateglacial lake sediments: Evidence from ancient DNA
作者: Ahmed E.; Parducci L.; Unneberg P.; Ågren R.; Schenk F.; Rattray J.E.; Han L.; Muschitiello F.; Pedersen M.W.; Smittenberg R.H.; Yamoah K.A.; Slotte T.; Wohlfarth B.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2018
卷: 181
起始页码: 19
结束页码: 29
语种: 英语
英文关键词: Ancient DNA ; Archaea ; Lake sediments ; Last deglaciation ; Lipid biomarkers ; Metagenomics ; Paleoclimate ; Paleoenvironment ; Shotgun sequencing ; Southern Sweden
Scopus关键词: Biodiversity ; Cytology ; DNA ; Ecology ; Gene encoding ; Glacial geology ; Ice ; Lipids ; Microorganisms ; Sediments ; Ancient dnas ; Archaea ; Lake sediments ; Last deglaciation ; Lipid biomarkers ; Metagenomics ; Paleo-environment ; Paleoclimates ; Shotgun sequencing ; Southern Sweden ; Lakes ; abundance ; Antarctic Bottom Water ; biodiversity ; biomarker ; climate effect ; community structure ; DNA ; genetic analysis ; Holocene ; lacustrine deposit ; last deglaciation ; lipid ; microbial community ; microorganism ; paleoclimate ; paleoenvironment ; Sweden ; Archaea
英文摘要: The Lateglacial/early Holocene sediments from the ancient lake at Hässeldala Port, southern Sweden provide an important archive for the environmental and climatic shifts at the end of the last ice age and the transition into the present Interglacial. The existing multi-proxy data set highlights the complex interplay of physical and ecological changes in response to climatic shifts and lake status changes. Yet, it remains unclear how microorganisms, such as Archaea, which do not leave microscopic features in the sedimentary record, were affected by these climatic shifts. Here we present the metagenomic data set of Hässeldala Port with a special focus on the abundance and biodiversity of Archaea. This allows reconstructing for the first time the temporal succession of major Archaea groups between 13.9 and 10.8 ka BP by using ancient environmental DNA metagenomics and fossil archaeal cell membrane lipids. We then evaluate to which extent these findings reflect physical changes of the lake system, due to changes in lake-water summer temperature and seasonal lake-ice cover. We show that variations in archaeal composition and diversity were related to a variety of factors (e.g., changes in lake water temperature, duration of lake ice cover, rapid sediment infilling), which influenced bottom water conditions and the sediment-water interface. Methanogenic Archaea dominated during the Allerød and Younger Dryas pollen zones, when the ancient lake was likely stratified and anoxic for large parts of the year. The increase in archaeal diversity at the Younger Dryas/Holocene transition is explained by sediment infilling and formation of a mire/peatbog. © 2017 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112318
Appears in Collections:气候减缓与适应

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作者单位: Department of Geological Sciences and Bolin Centre for Climate Research, Stockholm University, Stockholm, SE-10691, Sweden; Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, SE-10691, Sweden; Science for Life Laboratory, Tomtebodavägen 23A, Solna, SE-17165, Sweden; Department of Ecology and Genetics, Uppsala University, Uppsala, SE-75236, Sweden; Science for Life Laboratory, Department of Cell and Molecular Biology, Uppsala University, Uppsala, SE-75236, Sweden; Science for Life Laboratory, Department of Chemical and Biological Engineering, Chalmers University of Technology, Göteborg, SE-41296, Sweden; Biological Sciences, University of Calgary, 2500 University Dr. NW, Calgary, Canada; Ancient DNA Laboratory, College of Life Sciences, Jilin University, China; Lamont-Doherty Earth Observatory, Columbia University, 61 Route 9NW, Palisades, NY, United States; Department of Zoology, University of Cambridge, Downing Street, Cambridge, CB2 3EJ, United Kingdom

Recommended Citation:
Ahmed E.,Parducci L.,Unneberg P.,et al. Archaeal community changes in Lateglacial lake sediments: Evidence from ancient DNA[J]. Quaternary Science Reviews,2018-01-01,181
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