globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2017.06.025
Scopus记录号: 2-s2.0-85021802818
论文题名:
Five thousand years of tropical lake sediment DNA records from Benin
作者: Bremond L.; Favier C.; Ficetola G.F.; Tossou M.G.; Akouégninou A.; Gielly L.; Giguet-Covex C.; Oslisly R.; Salzmann U.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2017
卷: 170
起始页码: 203
结束页码: 211
语种: 英语
英文关键词: Africa ; Metabarcoding ; Plant diversity ; Pollen ; sedDNA ; Tropical ; Vegetation dynamics
Scopus关键词: DNA ; Gene encoding ; Lakes ; Tropics ; Vegetation ; Africa ; Metabarcoding ; Plant diversity ; Pollen ; sedDNA ; Tropical ; Vegetation dynamics ; Plants (botany) ; Ipomoea batatas
英文摘要: Until now, sedimentary DNA (sedDNA) studies have only focused on cold and temperate regions were DNA is relatively well preserved. Consequently, the tropics, where vegetation is hyperdiverse and natural archives are rare, have been neglected and deserve attention. In this study, we used next-generation sequencing to barcode sedDNA from Lake Sele, localized in the tropical lowlands of Benin (Africa), and compared the taxonomic diversity detected by DNA analyses with pollen assemblages. Plant sedDNA was successfully amplified from 33 of the 34 successfully extracted samples. In total, 43 taxa were identified along the 5000 years spanned by the sediment: 22 taxa were identified at the family level and 21 at the genus level. The plant diversity recovered through sedDNA from Lake Sele showed a specific local signal and limited overlapping with pollen. Introduced plants, grown and cultivated close to the water, such as sweet potato, were also well recorded by sedDNA. It appears, therefore, to be a promising approach to studying past diversity in tropical regions, and could help in tracking the introduction and history of agriculture. This is the first time this method has been used in the field of domestication and dissemination of several specific crops, and the results are very encouraging. © 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/59151
Appears in Collections:过去全球变化的重建

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作者单位: Institut des Sciences de l’Évolution - Montpellier, UMR 5554 CNRS-IRD-Université Montpellier-EPHE, Montpellier, France; École Pratique des Hautes Études, PSL Research University, 4-14 rue Ferrus, Paris, France; Université Grenoble Alpes, LECA, Grenoble, France; CNRS, LECA, Grenoble, France; Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, Milan, Italy; National Herbarium, Department of Botany and Plant Biology, Faculty of Sciences and Technology (FAST), University of Abomey-Calavi (UAC) Cotonou, Benin; EDYTEM, Université de Savoie, CNRS, Pôle Montagne, Le Bourget du Lac, France; UMR PALOC, Institut de Recherche pour le Développement et Agence Nationale des Parcs Nationaux, Libreville, BP, Gabon; Department of Geography, Faculty of Engineering and Environment, Northumbria University, Ellison Building, Newcastle upon Tyne, United Kingdom

Recommended Citation:
Bremond L.,Favier C.,Ficetola G.F.,et al. Five thousand years of tropical lake sediment DNA records from Benin[J]. Quaternary Science Reviews,2017-01-01,170
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