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Antoine PO, Wieringa LN, Adnet S, Aguilera O, Bodin SC, Cairns S, Conejeros-Vargas CA, Cornée JJ, Ežerinskis Ž, Fietzke J, Gribenski NO, Grouard S, Hendy A, Hoorn C, Joannes-Boyau R, Langer MR, Luque J, Marivaux L, Moissette P, Nooren K, Quillévéré F, Šapolaitė J, Sciumbata M, Valla PG, Witteveen NH, Casanova A, Clavier S, Bidgrain P, Gallay M, Rhoné M, Heuret A. A Late Pleistocene coastal ecosystem in French Guiana was hyperdiverse relative to today. Proc Natl Acad Sci U S A 2024; 121:e2311597121. [PMID: 38527199 PMCID: PMC10998618 DOI: 10.1073/pnas.2311597121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 02/15/2024] [Indexed: 03/27/2024] Open
Abstract
Warmer temperatures and higher sea level than today characterized the Last Interglacial interval [Pleistocene, 128 to 116 thousand years ago (ka)]. This period is a remarkable deep-time analog for temperature and sea-level conditions as projected for 2100 AD, yet there has been no evidence of fossil assemblages in the equatorial Atlantic. Here, we report foraminifer, metazoan (mollusks, bony fish, bryozoans, decapods, and sharks among others), and plant communities of coastal tropical marine and mangrove affinities, dating precisely from a ca. 130 to 115 ka time interval near the Equator, at Kourou, in French Guiana. These communities include ca. 230 recent species, some being endangered today and/or first recorded as fossils. The hyperdiverse Kourou mollusk assemblage suggests stronger affinities between Guianese and Caribbean coastal waters by the Last Interglacial than today, questioning the structuring role of the Amazon Plume on tropical Western Atlantic communities at the time. Grassland-dominated pollen, phytoliths, and charcoals from younger deposits in the same sections attest to a marine retreat and dryer conditions during the onset of the last glacial (ca. 110 to 50 ka), with a savanna-dominated landscape and episodes of fire. Charcoals from the last millennia suggest human presence in a mosaic of modern-like continental habitats. Our results provide key information about the ecology and biogeography of pristine Pleistocene tropical coastal ecosystems, especially relevant regarding the-widely anthropogenic-ongoing global warming.
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Affiliation(s)
- Pierre-Olivier Antoine
- Equipe de Paléontologie, Institut des Sciences de l’Évolution de Montpellier, Univ Montpellier, CNRS, Institut de Recherche pour le Développement, Montpellier34095, France
| | - Linde N. Wieringa
- Equipe de Paléontologie, Institut des Sciences de l’Évolution de Montpellier, Univ Montpellier, CNRS, Institut de Recherche pour le Développement, Montpellier34095, France
| | - Sylvain Adnet
- Equipe de Paléontologie, Institut des Sciences de l’Évolution de Montpellier, Univ Montpellier, CNRS, Institut de Recherche pour le Développement, Montpellier34095, France
| | - Orangel Aguilera
- Paleoecology and Global Changes Laboratory, Marine Biology Department, Fluminense Federal University, Niterói 24210-201, Rio de Janeiro, Brazil
| | - Stéphanie C. Bodin
- Department of Paleoanthropology, Senckenberg Research Institute, Frankfurt am Main60325, Germany
| | - Stephen Cairns
- Department of Invertebrate Zoology, Smithsonian Institution, National Museum of Natural History, Washington D.C.20013-7012
| | - Carlos A. Conejeros-Vargas
- Departamento de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México04510, México
| | - Jean-Jacques Cornée
- Equipe Dynamique de la Lithosphère, Géosciences Montpellier, Univ Montpellier, CNRS, Montpellier34095, France
| | - Žilvinas Ežerinskis
- Mass Spectrometry Laboratory, Center for Physical Sciences and Technology, Vilnius10257, Lithuania
| | - Jan Fietzke
- Geomar, Helmholtz Centre for Ocean Research Kiel, Kiel24148, Germany
| | - Natacha O. Gribenski
- Institute of Geological Sciences, Oeschger Centre for Climate Change Research, University of Bern, Bern3012, Switzerland
| | - Sandrine Grouard
- Archéozoologie et Archéobotanique—Sociétés, Pratiques et Environnements, CNRS, Muséum National d’Histoire Naturelle, Paris75005, France
| | - Austin Hendy
- Invertebrate Paleontology Department, Natural History Museum of Los Angeles County, Los Angeles, CA90007
| | - Carina Hoorn
- Ecosystem & Landscape Dynamics Department, Institute for Biodiversity and Ecosystem Dynamics, Universiteit van Amsterdam, Amsterdam1098 XH, The Netherlands
| | - Renaud Joannes-Boyau
- Geoarchaeology and Archaeometry Research Group, Southern Cross GeoScience, Southern Cross University, East Lismore, NSW2480, Australia
- Centre for Anthropological Research, University of Johannesburg, Johannesburg2092, South Africa
| | - Martin R. Langer
- Arbeitsgruppe Mikropaläontologie, Institut für Geowissenschaften, Paläontologie, Universität Bonn, Bonn53115, Germany
| | - Javier Luque
- Department of Zoology, Museum of Zoology, University of Cambridge, CambridgeCB2 3EJ, United Kingdom
| | - Laurent Marivaux
- Equipe de Paléontologie, Institut des Sciences de l’Évolution de Montpellier, Univ Montpellier, CNRS, Institut de Recherche pour le Développement, Montpellier34095, France
| | - Pierre Moissette
- Department of Historical Geology-Paleontology, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, Athens15784, Greece
| | - Kees Nooren
- Ecosystem & Landscape Dynamics Department, Institute for Biodiversity and Ecosystem Dynamics, Universiteit van Amsterdam, Amsterdam1098 XH, The Netherlands
| | - Frédéric Quillévéré
- Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, CNRS, VilleurbanneF-69622, France
| | - Justina Šapolaitė
- Mass Spectrometry Laboratory, Center for Physical Sciences and Technology, Vilnius10257, Lithuania
| | - Matteo Sciumbata
- Ecosystem & Landscape Dynamics Department, Institute for Biodiversity and Ecosystem Dynamics, Universiteit van Amsterdam, Amsterdam1098 XH, The Netherlands
- Section Systems Ecology, Amsterdam Institute for Life and Environment, Vrije Universiteit, Amsterdam1081 BT, The Netherlands
| | - Pierre G. Valla
- Equipe Tectonique, Reliefs et Bassins, Institut des Sciences de la Terre, Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, Université Gustave Eiffel, Grenoble38058, France
| | - Nina H. Witteveen
- Ecosystem & Landscape Dynamics Department, Institute for Biodiversity and Ecosystem Dynamics, Universiteit van Amsterdam, Amsterdam1098 XH, The Netherlands
| | - Alexandre Casanova
- Département Formation et Recherche Sciences et Technologie, Université de Guyane, Cayenne97300, Guyane
| | | | - Philibert Bidgrain
- Département Formation et Recherche Sciences et Technologie, Université de Guyane, Cayenne97300, Guyane
| | | | | | - Arnauld Heuret
- Equipe Dynamique de la Lithosphère, Géosciences Montpellier, Univ Montpellier, CNRS, Montpellier34095, France
- Département Formation et Recherche Sciences et Technologie, Université de Guyane, Cayenne97300, Guyane
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2
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Agiadi K, Quillévéré F, Nawrot R, Sommeville T, Coll M, Koskeridou E, Fietzke J, Zuschin M. Palaeontological evidence for community-level decrease in mesopelagic fish size during Pleistocene climate warming in the eastern Mediterranean. Proc Biol Sci 2023; 290:20221994. [PMID: 36629116 PMCID: PMC9832546 DOI: 10.1098/rspb.2022.1994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Mesopelagic fishes are an important element of marine food webs, a huge, still mostly untapped food resource and great contributors to the biological carbon pump, whose future under climate change scenarios is unknown. The shrinking of commercial fishes within decades has been an alarming observation, but its causes remain contended. Here, we investigate the effect of warming climate on mesopelagic fish size in the eastern Mediterranean Sea during a glacial-interglacial-glacial transition of the Middle Pleistocene (marine isotope stages 20-18; 814-712 kyr B.P.), which included a 4°C increase in global seawater temperature. Our results based on fossil otoliths show that the median size of lanternfishes, one of the most abundant groups of mesopelagic fishes in fossil and modern assemblages, declined by approximately 35% with climate warming at the community level. However, individual mesopelagic species showed different and often opposing trends in size across the studied time interval, suggesting that climate warming in the interglacial resulted in an ecological shift toward increased relative abundance of smaller sized mesopelagic fishes due to geographical and/or bathymetric distribution range shifts, and the size-dependent effects of warming.
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Affiliation(s)
- Konstantina Agiadi
- Department of Palaeontology, University of Vienna, Josef-Holaubek-Platz 2, UZA II, 1090, Vienna, Austria
| | - Frédéric Quillévéré
- Université Claude Bernard Lyon 1, ENS de Lyon, CNRS, UMR 5276 LGL-TPE, 69622 Villeurbanne, France
| | - Rafał Nawrot
- Department of Palaeontology, University of Vienna, Josef-Holaubek-Platz 2, UZA II, 1090, Vienna, Austria
| | - Theo Sommeville
- Department of Palaeontology, University of Vienna, Josef-Holaubek-Platz 2, UZA II, 1090, Vienna, Austria,IMBRSea Program, Ghent University - Marine Biology Research Group, Krijgslaan 281/S8, 9000 Ghent, Belgium
| | - Marta Coll
- Institute of Marine Sciences (ICM-CSIC), Passeig Marítim de la Barceloneta 37-49, 08003, Barcelona, Spain
| | - Efterpi Koskeridou
- Department of Historical Geology and Paleontology, National and Kapodistrian University of Athens, Panepistimioupolis, 15784, Athens, Greece
| | - Jan Fietzke
- GEOMAR, Helmholtz Centre for Ocean Research Kiel, Wischhofstrasse 1-3, 24148 Kiel, Germany
| | - Martin Zuschin
- Department of Palaeontology, University of Vienna, Josef-Holaubek-Platz 2, UZA II, 1090, Vienna, Austria
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Hautier L, Tabuce R, Mourlam MJ, Kassegne KE, Amoudji YZ, Orliac M, Quillévéré F, Charruault AL, Johnson AKC, Guinot G. New Middle Eocene proboscidean from Togo illuminates the early evolution of the elephantiform-like dental pattern. Proc Biol Sci 2021; 288:20211439. [PMID: 34641726 PMCID: PMC8511763 DOI: 10.1098/rspb.2021.1439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 09/16/2021] [Indexed: 11/12/2022] Open
Abstract
Africa has played a pivotal role in the evolution of early proboscideans (elephants and their extinct relatives), yet vast temporal and geographical zones remain uncharted on the continent. A long hiatus encompassing most of the Eocene (Ypresian to the Early Priabonian, around 13 Myr timespan) considerably hampers our understanding of the early evolutionary history of the group. It is notably the case with the origin of its most successful members, the Elephantiformes, i.e. all elephant-like proboscideans most closely related to modern elephants. Here, we describe a proboscidean lower molar discovered in Lutetian phosphate deposits from Togo, and name a new genus and species, Dagbatitherium tassyi. We show that Dagbatitherium displays several elephantiform dental characteristics such as a three-layered Schmelzmuster, the presence of a mesoconid, transversely enlarged buccal cusps and the individualization of a third lophid closely appressed to a minute distal cingulid. Dagbatitherium represents a stem Elephantiformes, pushing back the origin of the group by about 10 Myr, i.e. a third of its currently known evolutionary history. More importantly, Dagbatitherium potentially unlocks the puzzle of the origin of the unique elephantiform tooth crown organization by bridging a critical temporal and morphological gap between early bunodont incipiently bilophodont proboscidean taxa and more derived elephantiforms.
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Affiliation(s)
- Lionel Hautier
- Institut des Sciences de l'Evolution de Montpellier, Université Montpellier, CNRS, IRD, Cc 064, place Eugène Bataillon, Montpellier Cedex 5 34095, France
| | - Rodolphe Tabuce
- Institut des Sciences de l'Evolution de Montpellier, Université Montpellier, CNRS, IRD, Cc 064, place Eugène Bataillon, Montpellier Cedex 5 34095, France
| | - Mickaël J. Mourlam
- Institut des Sciences de l'Evolution de Montpellier, Université Montpellier, CNRS, IRD, Cc 064, place Eugène Bataillon, Montpellier Cedex 5 34095, France
| | | | - Yawovi Zikpi Amoudji
- Département de Géologie, Faculté des Sciences, Université de Lomé, Lomé B.P. 1515, Togo
| | - Maëva Orliac
- Institut des Sciences de l'Evolution de Montpellier, Université Montpellier, CNRS, IRD, Cc 064, place Eugène Bataillon, Montpellier Cedex 5 34095, France
| | - Frédéric Quillévéré
- Univ Lyon, Université Claude Bernard Lyon 1, ENS de Lyon, CNRS, UMR 5276 LGL-TPE, Villeurbanne 69622, France
| | - Anne-Lise Charruault
- Institut des Sciences de l'Evolution de Montpellier, Université Montpellier, CNRS, IRD, Cc 064, place Eugène Bataillon, Montpellier Cedex 5 34095, France
| | | | - Guillaume Guinot
- Institut des Sciences de l'Evolution de Montpellier, Université Montpellier, CNRS, IRD, Cc 064, place Eugène Bataillon, Montpellier Cedex 5 34095, France
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Morard R, Escarguel G, Weiner AKM, André A, Douady CJ, Wade CM, Darling KF, Ujiié Y, Seears HA, Quillévéré F, de Garidel-Thoron T, de Vargas C, Kucera M. Nomenclature for the Nameless: A Proposal for an Integrative Molecular Taxonomy of Cryptic Diversity Exemplified by Planktonic Foraminifera. Syst Biol 2016; 65:925-40. [PMID: 27073250 DOI: 10.1093/sysbio/syw031] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 04/04/2016] [Indexed: 11/12/2022] Open
Abstract
Investigations of biodiversity, biogeography, and ecological processes rely on the identification of "species" as biologically significant, natural units of evolution. In this context, morphotaxonomy only provides an adequate level of resolution if reproductive isolation matches morphological divergence. In many groups of organisms, morphologically defined species often disguise considerable genetic diversity, which may be indicative of the existence of cryptic species. The diversity hidden by morphological species can be disentangled through genetic surveys, which also provide access to data on the ecological distribution of genetically circumscribed units. These units can be identified by unique DNA sequence motifs and allow studies of evolutionary and ecological processes at different levels of divergence. However, the nomenclature of genetically circumscribed units within morphological species is not regulated and lacks stability. This represents a major obstacle to efforts to synthesize and communicate data on genetic diversity for multiple stakeholders. We have been confronted with such an obstacle in our work on planktonic foraminifera, where the stakeholder community is particularly diverse, involving geochemists, paleoceanographers, paleontologists, and biologists, and the lack of stable nomenclature beyond the level of formal morphospecies prevents effective transfer of knowledge. To circumvent this problem, we have designed a stable, reproducible, and flexible nomenclature system for genetically circumscribed units, analogous to the principles of a formal nomenclature system. Our system is based on the definition of unique DNA sequence motifs collocated within an individual, their typification (in analogy with holotypes), utilization of their hierarchical phylogenetic structure to define levels of divergence below that of the morphospecies, and a set of nomenclature rules assuring stability. The resulting molecular operational taxonomic units remain outside the domain of current nomenclature codes, but are linked to formal morphospecies as regulated by the codes. Subsequently, we show how this system can be applied to classify genetically defined units using the SSU rDNA marker in planktonic foraminifera and we highlight its potential use for other groups of organisms where similarly high levels of connectivity between molecular and formal taxonomies can be achieved.
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Affiliation(s)
- Raphaël Morard
- MARUM Center for Marine Environmental Sciences, University of Bremen, Leobener Strasse, 28359 Bremen, Germany,
| | - Gilles Escarguel
- Université de Lyon; UMR5023 Ecologie des Hydrosystémes Naturels et Anthropisés; Universiteì Lyon 1; ENTPE; CNRS; 6 rue Raphaël Dubois, 69622 Villeurbanne, France
| | - Agnes K M Weiner
- MARUM Center for Marine Environmental Sciences, University of Bremen, Leobener Strasse, 28359 Bremen, Germany, Japan Agency for Marine Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Kanagawa, Japan
| | - Aurore André
- Université de Reims-Champagne-Ardenne, UFR Sciences Exactes et Naturelles, Campus Moulin de la Housse, Batiment 18, 51100 REIMS, France
| | - Christophe J Douady
- Université de Lyon; UMR5023 Ecologie des Hydrosystémes Naturels et Anthropisés; Universiteì Lyon 1; ENTPE; CNRS; 6 rue Raphaël Dubois, 69622 Villeurbanne, France, Institut Universitaire de France, 103 Boulevard Saint-Michel, 75005 Paris, France
| | - Christopher M Wade
- School of Life Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - Kate F Darling
- School of GeoSciences, University of Edinburgh, Edinburgh EH9 3JW, UK, School of Geography and GeoSciences, University of St Andrews, Fife KY16 9AL, UK
| | - Yurika Ujiié
- Department of Biology, Shinshu University, Asahi3-1-1, Matsumoto, Nagano 390-8621, Japan
| | - Heidi A Seears
- Department of Biology, Gilmer Hall, University of Virginia, 485 McCormick Road, Charlottesville, VA 22904, USA
| | - Frédéric Quillévéré
- Univ Lyon, Université Lyon 1, ENS de Lyon, CNRS, UMR 5276 LGL-TPE, F-69622 Villeurbanne, France
| | - Thibault de Garidel-Thoron
- Centre Européen de Recherche et d'Enseignement de Géosciences de l'Environnement, Centre National de la Recherche Scientifique, et Aix-Marseille Université, Aix-en-Provence, France
| | - Colomban de Vargas
- Centre National de la Recherche Scientifique, UMR 7144, EPEP, Station Biologique de Roscoff, 29680 Roscoff, France, and Sorbonne Universités, UPMC Univ Paris 06, UMR 7144, Station Biologique de Roscoff, 29680 Roscoff, France
| | - Michal Kucera
- MARUM Center for Marine Environmental Sciences, University of Bremen, Leobener Strasse, 28359 Bremen, Germany
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Morard R, Darling KF, Mahé F, Audic S, Ujiié Y, Weiner AKM, André A, Seears HA, Wade CM, Quillévéré F, Douady CJ, Escarguel G, de Garidel-Thoron T, Siccha M, Kucera M, de Vargas C. PFR2: a curated database of planktonic foraminifera 18S ribosomal DNA as a resource for studies of plankton ecology, biogeography and evolution. Mol Ecol Resour 2015; 15:1472-85. [DOI: 10.1111/1755-0998.12410] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 03/25/2015] [Accepted: 03/27/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Raphaël Morard
- Centre National de la Recherche Scientifique; UMR 7144; EPEP; Station Biologique de Roscoff; 29680 Roscoff France
- Sorbonne Universités; UPMC Univ Paris 06; UMR 7144; Station Biologique de Roscoff; 29680 Roscoff France
- MARUM Center for Marine Environmental Sciences; University of Bremen; Leobener Strasse 28359 Bremen Germany
| | - Kate F. Darling
- School of GeoSciences; University of Edinburgh; Edinburgh EH9 3JW UK
- School of Geography and GeoSciences; University of St Andrews; Fife KY16 9AL UK
| | - Frédéric Mahé
- Department of Ecology; Technische Universität Kaiserslautern; 67663 Kaiserslautern Germany
| | - Stéphane Audic
- Centre National de la Recherche Scientifique; UMR 7144; EPEP; Station Biologique de Roscoff; 29680 Roscoff France
- Sorbonne Universités; UPMC Univ Paris 06; UMR 7144; Station Biologique de Roscoff; 29680 Roscoff France
| | - Yurika Ujiié
- Department of Biology; Shinshu University; Asahi3-1-1 Matsumoto Nagano 390-8621 Japan
| | - Agnes K. M. Weiner
- MARUM Center for Marine Environmental Sciences; University of Bremen; Leobener Strasse 28359 Bremen Germany
| | - Aurore André
- CNRS UMR 5276; Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement; Université Claude Bernard Lyon 1; 69622 Villeurbanne France
- UFR Sciences Exactes et Naturelles; Université de Reims-Champagne-Ardenne; Campus Moulin de la Housse Batiment 18 51100 Reims France
| | - Heidi A. Seears
- School of Life Sciences; University of Nottingham; University Park Nottingham NG7 2RD UK
- Department of Biological Sciences; Lehigh University; Iacocca Hall 111 Research Drive Bethlehem PA 18105 USA
| | - Christopher M. Wade
- School of Life Sciences; University of Nottingham; University Park Nottingham NG7 2RD UK
| | - Frédéric Quillévéré
- CNRS UMR 5276; Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement; Université Claude Bernard Lyon 1; 69622 Villeurbanne France
| | - Christophe J. Douady
- UMR5023 Ecologie des Hydrosystèmes Naturels et Anthropisés; Université Lyon 1; ENTPE; CNRS; Université de Lyon; 6 rue Raphaël Dubois 69622 Villeurbanne France
- Institut Universitaire de France; 103 Boulevard Saint-Michel 75005 Paris France
| | - Gilles Escarguel
- CNRS UMR 5276; Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement; Université Claude Bernard Lyon 1; 69622 Villeurbanne France
| | | | - Michael Siccha
- MARUM Center for Marine Environmental Sciences; University of Bremen; Leobener Strasse 28359 Bremen Germany
| | - Michal Kucera
- MARUM Center for Marine Environmental Sciences; University of Bremen; Leobener Strasse 28359 Bremen Germany
| | - Colomban de Vargas
- Centre National de la Recherche Scientifique; UMR 7144; EPEP; Station Biologique de Roscoff; 29680 Roscoff France
- Sorbonne Universités; UPMC Univ Paris 06; UMR 7144; Station Biologique de Roscoff; 29680 Roscoff France
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André A, Quillévéré F, Morard R, Ujiié Y, Escarguel G, de Vargas C, de Garidel-Thoron T, Douady CJ. SSU rDNA divergence in planktonic foraminifera: molecular taxonomy and biogeographic implications. PLoS One 2014; 9:e104641. [PMID: 25119900 PMCID: PMC4131912 DOI: 10.1371/journal.pone.0104641] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 07/11/2014] [Indexed: 11/21/2022] Open
Abstract
The use of planktonic foraminifera in paleoceanography requires taxonomic consistency and precise assessment of the species biogeography. Yet, ribosomal small subunit (SSUr) DNA analyses have revealed that most of the modern morpho-species of planktonic foraminifera are composed of a complex of several distinct genetic types that may correspond to cryptic or pseudo-cryptic species. These genetic types are usually delimitated using partial sequences located at the 3'end of the SSUrDNA, but typically based on empirical delimitation. Here, we first use patristic genetic distances calculated within and among genetic types of the most common morpho-species to show that intra-type and inter-type genetic distances within morpho-species may significantly overlap, suggesting that genetic types have been sometimes inconsistently defined. We further apply two quantitative and independent methods, ABGD (Automatic Barcode Gap Detection) and GMYC (General Mixed Yule Coalescent) to a dataset of published and newly obtained partial SSU rDNA for a more objective assessment of the species status of these genetic types. Results of these complementary approaches are highly congruent and lead to a molecular taxonomy that ranks 49 genetic types of planktonic foraminifera as genuine (pseudo)cryptic species. Our results advocate for a standardized sequencing procedure allowing homogenous delimitations of (pseudo)cryptic species. On the ground of this revised taxonomic framework, we finally provide an integrative taxonomy synthesizing geographic, ecological and morphological differentiations that can occur among the genuine (pseudo)cryptic species. Due to molecular, environmental or morphological data scarcities, many aspects of our proposed integrative taxonomy are not yet fully resolved. On the other hand, our study opens up the potential for a correct interpretation of environmental sequence datasets.
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Affiliation(s)
- Aurore André
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 5276: Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement, Université Lyon 1, Villeurbanne, France
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 6112: Laboratoire de Planétologie et de Géodynamique - Bioindicateurs Actuels et Fossiles, Université d'Angers, Angers, France
| | - Frédéric Quillévéré
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 5276: Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement, Université Lyon 1, Villeurbanne, France
| | - Raphaël Morard
- Zentrum für marine Umweltwissenschaften MARUM, Universität Bremen, Bremen, Germany
| | - Yurika Ujiié
- Department of Biology, Shinshu University, Matsumoto, Japan
| | - Gilles Escarguel
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 5276: Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement, Université Lyon 1, Villeurbanne, France
| | - Colomban de Vargas
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7144: Evolution des Protistes et des Ecosystèmes Pélagiques, Université Pierre et Marie Curie-Station Biologique de Roscoff, Roscoff, France
| | - Thibault de Garidel-Thoron
- Centre National de la Recherche Scientifique, Centre de Recherche et d'Enseignement de Géosciences de l'Environnement, Université Aix-Marseille, Aix-en-Provence, France
| | - Christophe J. Douady
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 5023: Ecologie des Hydrosystèmes Fluviaux, Université Lyon 1, Villeurbanne, France
- Institut Universitaire de France, Paris, France
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Münch P, Lebrun JF, Cornée JJ, Thinon I, Guennoc P, Marcaillou BJ, Begot J, Bertrand G, De Berc SB, Biscarrat K, Claud C, De Min L, Fournier F, Gailler L, Graindorge D, Léticée JL, Marie L, Mazabraud Y, Melinte-Dobrinescu M, Moissette P, Quillévéré F, Verati C, Randrianasolo A. Pliocene to Pleistocene carbonate systems of the Guadeloupe archipelago, French Lesser Antilles: a land and sea study (the KaShallow project). ACTA ACUST UNITED AC 2013. [DOI: 10.2113/gssgfbull.184.1-2.99] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
AbstractThis work presents a synthesis of the present-day knowledge on both emerged and submerged carbonate platforms of the Guadeloupe archipelago. Onshore and offshore data acquired during the KaShallow project are presented. Since the early Zanclean, some isolated platforms developed onto a Jurassic to Tortonian basement which displayed reliefs inherited from a major extensional tectonic episode dated from −8 to −5 Ma. Marie-Galante, Grande Terre and the southern shelf of Grande-Terre show strong similarities with Zanclean to Gelasian red-algal facies upward changing into early Calabrian coral facies. A major erosional unconformity (SB2) was recognized and allows to distinguish two early Calabrian formations (Calcaires à Agaricia Formation and Calcaires à Acropora Formation). The final emersion of these platforms is late Calabrian. The La Désirade platform displays Zanclean to early Piacenzian red-algal facies upward changing into coral facies. This platform emerged as soon as in the late Piacenzian. The island subsided again in relation with later extensional tectonic episode and early Calabrian reef platform then unconformably deposited. The Colombie bank deposits comprise Pliocene basinal deposits overlain by late Calabrian coral reefs. The Flandre bank might have emerged synchronously with La Désirade but was drowned only in the late Pleistocene-Holocene interval. Four extensional tectonic episodes have been identified in the late Miocene-Recent interval. Their effects depend on the location of the platforms within the fore-arc.
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Affiliation(s)
- Philippe Münch
- Université Montpellier 2, CNRS, UMR 5243 Géosciences Montpellier, CC 60, place E. Bataillon, 34095 Montpellier cedex 5, France
- Université de Provence, 3 place Victor Hugo, 13331 Marseille cedex 3, France
| | - Jean-Frédéric. Lebrun
- Université des Antilles et de la Guyane, EA4098 LaRGE, 97159 Pointe à Pitre, Guadeloupe FWI
| | - Jean-Jacques Cornée
- Université Montpellier 2, CNRS, UMR 5243 Géosciences Montpellier, CC 60, place E. Bataillon, 34095 Montpellier cedex 5, France
| | - Isabelle Thinon
- BRGM, 3 Avenue Claude Guillemin, 45060 Orleans cedex 02, France
| | - Pol Guennoc
- BRGM, 3 Avenue Claude Guillemin, 45060 Orleans cedex 02, France
| | | | - Jacques Begot
- IUEM, place Nicolas Copernic, 29280 Plouzané, France
| | | | | | - Kevin Biscarrat
- Université de Provence, 3 place Victor Hugo, 13331 Marseille cedex 3, France
| | - Clarisse Claud
- Université des Antilles et de la Guyane, EA4098 LaRGE, 97159 Pointe à Pitre, Guadeloupe FWI
| | - Lyvane De Min
- Université des Antilles et de la Guyane, EA4098 LaRGE, 97159 Pointe à Pitre, Guadeloupe FWI
| | - François Fournier
- Université de Provence, 3 place Victor Hugo, 13331 Marseille cedex 3, France
| | - Lydie Gailler
- BRGM, 3 Avenue Claude Guillemin, 45060 Orleans cedex 02, France
| | | | - Jean-Len Léticée
- Université des Antilles et de la Guyane, EA4098 LaRGE, 97159 Pointe à Pitre, Guadeloupe FWI
| | - Lionel Marie
- Université de Provence, 3 place Victor Hugo, 13331 Marseille cedex 3, France
| | - Yes Mazabraud
- Université des Antilles et de la Guyane, EA4098 LaRGE, 97159 Pointe à Pitre, Guadeloupe FWI
| | | | - Pierre Moissette
- UMR CNRS 5276, Laboratoire de Géologie de Lyon, Terre, Planètes, Environnement, Université Lyon 1, Boulevard du 11 Novembre 1918, 69622 Villeurbanne cedex, France
| | - Frédéric Quillévéré
- UMR CNRS 5276, Laboratoire de Géologie de Lyon, Terre, Planètes, Environnement, Université Lyon 1, Boulevard du 11 Novembre 1918, 69622 Villeurbanne cedex, France
| | - Chrystel Verati
- Université Nice Sophia-Antipolis, UMR 6256 Geoazur, Parc Valrose, 06108 Nice cedex 2, France
| | - Auran Randrianasolo
- Université des Antilles et de la Guyane, EA4098 LaRGE, 97159 Pointe à Pitre, Guadeloupe FWI
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Morard R, Quillévéré F, Douady CJ, de Vargas C, de Garidel-Thoron T, Escarguel G. Worldwide genotyping in the planktonic foraminifer Globoconella inflata: implications for life history and paleoceanography. PLoS One 2011; 6:e26665. [PMID: 22028935 PMCID: PMC3197684 DOI: 10.1371/journal.pone.0026665] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Accepted: 09/30/2011] [Indexed: 11/19/2022] Open
Abstract
The planktonic foraminiferal morpho-species Globoconella inflata is widely used as a stratigraphic and paleoceanographic index. While G. inflata was until now regarded as a single species, we show that it rather constitutes a complex of two pseudo-cryptic species. Our study is based on SSU and ITS rDNA sequence analyses and genotyping of 497 individuals collected at 49 oceanic stations covering the worldwide range of the morpho-species. Phylogenetic analyses unveil the presence of two divergent genotypes. Type I inhabits transitional and subtropical waters of both hemispheres, while Type II is restricted to the Antarctic subpolar waters. The two genetic species exhibit a strictly allopatric distribution on each side of the Antarctic Subpolar Front. On the other hand, sediment data show that G. inflata was restricted to transitional and subtropical environments since the early Pliocene, and expanded its geographic range to southern subpolar waters ∼700 kyrs ago, during marine isotopic stage 17. This datum may correspond to a peripatric speciation event that led to the partition of an ancestral genotype into two distinct evolutionary units. Biometric measurements performed on individual G. inflata from plankton tows north and south of the Antarctic Subpolar Front indicate that Types I and II display slight but significant differences in shell morphology. These morphological differences may allow recognition of the G. inflata pseudo-cryptic species back into the fossil record, which in turn may contribute to monitor past movements of the Antarctic Subpolar Front during the middle and late Pleistocene.
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Affiliation(s)
- Raphaël Morard
- CNRS UMR 5276 Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement, Université Lyon 1, Villeurbanne, France.
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