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Carstens BC, Moshier SP. Giant tree frogs exemplify the promise of integrating multiple types of data in phylogeographic investigations. Mol Ecol 2022; 31:3971-3974. [PMID: 35779007 DOI: 10.1111/mec.16593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/13/2022] [Accepted: 06/28/2022] [Indexed: 11/29/2022]
Abstract
Hugall et al. (2022) is one of the seminal publications from the single locus era of phylogeographic research. These authors were among the first to argue that genetic data are ideally suited to test hypotheses that are ultimately derived from other sources of information. While the testing of predictions from the fossil record has long been important to molecular systematics (e.g., Donoghue et al., 1989), phylogeographic investigations into the more recent evolutionary past lack a fossil record in most focal taxa. In lieu of fossils, which were not available for the small snails that served as the focal taxon, Hugall et al. (2002) applied the (then) new technique of environmental modelling to identify regions within the species range with habitat that was predicted to be stable throughout the Holocene. They then present data that suggests that these regions correspond to the areas with high genetic diversity. Apart from the inferences about snail evolutionary history, the core argument of Hugall et al. (2002) is that consilience (i.e., agreement between inferences drawn from different sources of data) is an important goal for phylogeographic investigation. Consilience in the inferences drawn from independent types of data has a multiplicative effect; when present the researcher is likely to have more confidence in their inference than would be possible to have in an inference from any one source of data. The manuscript by Jaynes et al. (2022) is a splendid illustration of this principle.
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Affiliation(s)
- Bryan C Carstens
- Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, Columbus, Ohio, USA
| | - Shelby P Moshier
- Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, Columbus, Ohio, USA
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2
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Chueca LJ, Schell T, Pfenninger M. Whole-genome re-sequencing data to infer historical demography and speciation processes in land snails: the study of two Candidula sister species. Philos Trans R Soc Lond B Biol Sci 2021; 376:20200156. [PMID: 33813898 PMCID: PMC8059500 DOI: 10.1098/rstb.2020.0156] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2021] [Indexed: 12/12/2022] Open
Abstract
Despite the global biodiversity of terrestrial gastropods and their ecological and economic importance, the genomic basis of ecological adaptation and speciation in land snail taxa is still largely unknown. Here, we combined whole-genome re-sequencing with population genomics to evaluate the historical demography and the speciation process of two closely related species of land snails from western Europe, Candidula unifasciata and C. rugosiuscula. Historical demographic analysis indicated fluctuations in the size of ancestral populations, probably driven by Pleistocene climatic fluctuations. Although the current population distributions of both species do not overlap, our approximate Bayesian computation model selection approach on several speciation scenarios suggested that gene flow has occurred throughout the divergence process until recently. Positively selected genes diverging early in the process were associated with intragenomic and cyto-nuclear incompatibilities, respectively, potentially fostering reproductive isolation as well as ecological divergence. Our results suggested that the speciation between species entails complex processes involving both gene flow and ecological speciation, and that further research based on whole-genome data can provide valuable understanding on species divergence. This article is part of the Theo Murphy meeting issue 'Molluscan genomics: broad insights and future directions for a neglected phylum'.
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Affiliation(s)
- Luis J. Chueca
- LOEWE-Centre for Translational Biodiversity Genomics (LOEWE-TBG), Senckenberg Nature Research Society, 60325 Frankfurt am Main, Germany
- Department of Zoology and Animal Cell Biology, University of the Basque Country (UPV-EHU), 01006 Vitoria-Gasteiz, Spain
- Molecular Ecology, Senckenberg Biodiversity and Climate Research Centre, Senckenberganlage 25, 60325 Frankfurt am Main, Germany
| | - Tilman Schell
- LOEWE-Centre for Translational Biodiversity Genomics (LOEWE-TBG), Senckenberg Nature Research Society, 60325 Frankfurt am Main, Germany
| | - Markus Pfenninger
- LOEWE-Centre for Translational Biodiversity Genomics (LOEWE-TBG), Senckenberg Nature Research Society, 60325 Frankfurt am Main, Germany
- Molecular Ecology, Senckenberg Biodiversity and Climate Research Centre, Senckenberganlage 25, 60325 Frankfurt am Main, Germany
- Institute of Organismic and Molecular Evolution (iOME), Faculty of Biology, Johannes Gutenberg University, 55128 Mainz, Germany
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Lausen C, Proctor MF, Paetkau D, Nagorsen DW, Govindarajulu P, Burles D, Blejwas K. Reply to the comment by Morales et al. on “Population genetics reveal Myotis keenii (Keen’s myotis) and Myotis evotis (long-eared myotis) to be a single species”. CAN J ZOOL 2021. [DOI: 10.1139/cjz-2020-0266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A.E. Morales et al. (2021. Can. J. Zool. 99(5): 415–422) provided no new evidence to alter the conclusions of C.L. Lausen et al. (2019. Can. J. Zool. 97(3): 267–279). We present background information, relevant comparisons, and clarification of analyses to further strengthen our conclusions. The genesis of the original “evotis–keenii” study in British Columbia (Canada) was to differentiate Myotis keenii (Merriam, 1895) (Keen’s myotis), with one of the smallest North American bat distributions, from sympatric Myotis evotis (H. Allen, 1864) (long-eared myotis), using something other than the suggested post-mortem skull size comparison, but no differentiating trait could be found, leading to the molecular genetics examination of C.L. Lausen et al. (2019). We present cumulative data that rejects the 1979 hypothesis of M. keenii as a distinct species. A.E. Morales et al. (2021) inaccurately portray C.L. Lausen et al.’s (2019) question and results; present inaccurate morphological and outdated distribution data; overstate the impact of homoplasy without supporting evidence; and misinterpret evidence of population structure.
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Affiliation(s)
- C.L. Lausen
- Wildlife Conservation Society Canada, P.O. Box 606, Kaslo, BC V0G 1M0, Canada
| | | | - David Paetkau
- Wildlife Genetics International, #200-182 Baker Street, Nelson, BC V1L 4H2, Canada
| | - David W. Nagorsen
- Royal British Columbia Museum, 675 Belleville Street, Victoria, BC V8W 9W2, Canada
| | - Purnima Govindarajulu
- BC Ministry of Environment, P.O. Box 9338, Station Provincial Government, Victoria, BC V8W 9M1, Canada
| | - Doug Burles
- 1038 Pine Springs Road, Kamloops, BC V2B 8A8, Canada
| | - Karen Blejwas
- Alaska Department of Fish and Game, 802 3rd Street, Douglas, AK 99824, USA
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4
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Morales AE, Fenton MB, Carstens BC, Simmons NB. Comment on “Population genetics reveal Myotis keenii (Keen’s myotis) and Myotis evotis (long-eared myotis) to be a single species”. CAN J ZOOL 2021. [DOI: 10.1139/cjz-2020-0048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Genetic exchange and hybridization appear common among the western long-eared bats from North America. Multiple sources of evidence indicate that lineages within this group are evolving independently, despite genetic exchange. However, evidence of gene flow raises questions about the species-level status of some lineages. C.L. Lausen et al. (2019. Can. J. Zool. 97(3): 267–279) proposed that Myotis evotis (H. Allen, 1864) (long-eared myotis) and Myotis keenii (Merriam, 1895) (Keen’s myotis) are one species, not two. This conclusion is based on analyses of cytochrome b and microsatellite data suggesting gene flow between these taxa. Microsatellites are not reliable markers for identifying species because homoplasy can be a major confounding factor, which appears to be true in this case. We reanalyzed the dataset of C.L. Lausen et al. (2019) and show that it is not reliable to distinguish between gene flow or homoplasy, and that these data do not support the conclusion that M. evotis and M. keenii represent a single species. Previous morphological and genomic studies indicate that these are separate species despite previous genetic exchange between them. Failing to recognize that gene flow can occur between independently evolving lineages is counterproductive for conservation because it can lead to neglect of important independent lineages, and likewise failing to use proper tools to delimit species is counterproductive to efforts to quantify biodiversity and design conservation strategies.
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Affiliation(s)
- Ariadna E. Morales
- Department of Mammalogy, Division of Vertebrate Zoology, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, USA
| | - M. Brock Fenton
- Department of Biology, University of Western Ontario, London, ON N6A 5B7, Canada
| | - Bryan C. Carstens
- Department of Evolution, Ecology and Organismal Biology, Ohio State University, 318 West 12th Avenue, Columbus, OH 43210, USA
| | - Nancy B. Simmons
- Department of Mammalogy, Division of Vertebrate Zoology, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, USA
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5
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Calderón-Acevedo CA, Rodríguez-Posada ME, Muchhala N. Morphology and genetics concur that Anoura carishina is a synonym of Anoura latidens (Chiroptera, Glossophaginae). MAMMALIA 2021. [DOI: 10.1515/mammalia-2020-0183] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Abstract
Anoura carishina was described based on cranial and dental morphology, but the original analyses did not include Anoura latidens, a similar species of Anoura. We used morphological, morphometric, and genetic analyses to evaluate the taxonomic identity of A. carishina. We performed a principal components analysis to evaluate the correspondence between morphological and taxonomic groups for 260 specimens of large-bodied Anoura (A. carishina, Anoura geoffroyi, A. latidens, and Anoura peruana), and statistically analyzed traits diagnostic for A. latidens, including (1) morphology of the third upper premolar (P4), (2) size of the second (P3) and third (P4) upper premolars, and (3) angle formed by the maxillary toothrows. We find that A. latidens and A. carishina are indistinguishable, and share several characters lacking in A. geoffroyi, including a P4 with triangular shape, an under-developed anterobasal cusp in the P3, a smaller braincase, and a shorter rostrum. Phylogenetic analyses using ultra-conserved elements infer that the holotype and two paratype specimens of A. carishina are paraphyletic and nested within A. latidens, while one paratype diagnosable by morphology as A. geoffroyi nests within A. geoffroyi samples. We demonstrate that A. carishina should be considered a junior synonym of A. latidens, updating the distribution of the latter.
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Affiliation(s)
- Camilo A. Calderón-Acevedo
- Department of Biology , University of Missouri–St. Louis , One University Blvd , St. Louis , MO 63121 , USA
- Department of Biological Sciences , Rutgers University , 195 University Ave , Newark , NJ 07102 , USA
| | - Miguel E. Rodríguez-Posada
- La Palmita Natural Reserve Foundation, Research Center , Territorial Studies for the Use and Conservation of Biodiversity Research Group , Carrera 4 No 58–59 , Bogotá , Colombia
| | - Nathan Muchhala
- Department of Biology , University of Missouri–St. Louis , One University Blvd , St. Louis , MO 63121 , USA
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6
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Gwee CY, Garg KM, Chattopadhyay B, Sadanandan KR, Prawiradilaga DM, Irestedt M, Lei F, Bloch LM, Lee JGH, Irham M, Haryoko T, Soh MCK, Peh KSH, Rowe KMC, Ferasyi TR, Wu S, Wogan GOU, Bowie RCK, Rheindt FE. Phylogenomics of white-eyes, a 'great speciator', reveals Indonesian archipelago as the center of lineage diversity. eLife 2020; 9:e62765. [PMID: 33350381 PMCID: PMC7775107 DOI: 10.7554/elife.62765] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 12/21/2020] [Indexed: 01/09/2023] Open
Abstract
Archipelagoes serve as important 'natural laboratories' which facilitate the study of island radiations and contribute to the understanding of evolutionary processes. The white-eye genus Zosterops is a classical example of a 'great speciator', comprising c. 100 species from across the Old World, most of them insular. We achieved an extensive geographic DNA sampling of Zosterops by using historical specimens and recently collected samples. Using over 700 genome-wide loci in conjunction with coalescent species tree methods and gene flow detection approaches, we untangled the reticulated evolutionary history of Zosterops, which comprises three main clades centered in Indo-Africa, Asia, and Australasia, respectively. Genetic introgression between species permeates the Zosterops phylogeny, regardless of how distantly related species are. Crucially, we identified the Indonesian archipelago, and specifically Borneo, as the major center of diversity and the only area where all three main clades overlap, attesting to the evolutionary importance of this region.
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Affiliation(s)
- Chyi Yin Gwee
- National University of Singapore, Department of Biological SciencesSingaporeSingapore
| | - Kritika M Garg
- National University of Singapore, Department of Biological SciencesSingaporeSingapore
| | - Balaji Chattopadhyay
- National University of Singapore, Department of Biological SciencesSingaporeSingapore
| | - Keren R Sadanandan
- National University of Singapore, Department of Biological SciencesSingaporeSingapore
- Max Planck Institute for OrnithologySeewiesenGermany
| | - Dewi M Prawiradilaga
- Division of Zoology, Research Center for Biology, Indonesian Institute of Sciences (LIPI), Cibinong Science CenterCibinongIndonesia
| | - Martin Irestedt
- Department of Bioinformatics and Genetics, Swedish Museum of Natural HistoryStockholmSweden
| | - Fumin Lei
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of SciencesBeijingChina
- Center for Excellence in Animal Evolution and Genetics, Chinese Academy of SciencesKunmingChina
| | - Luke M Bloch
- Museum of Vertebrate Zoology and Department of Integrative Biology, University of California, BerkeleyBerkeleyUnited States
| | | | - Mohammad Irham
- Division of Zoology, Research Center for Biology, Indonesian Institute of Sciences (LIPI), Cibinong Science CenterCibinongIndonesia
| | - Tri Haryoko
- Division of Zoology, Research Center for Biology, Indonesian Institute of Sciences (LIPI), Cibinong Science CenterCibinongIndonesia
| | - Malcolm CK Soh
- University of Western Australia, School of Biological SciencesPerthAustralia
| | - Kelvin S-H Peh
- University of Southampton, School of Biological Sciences, UniversitySouthamptonUnited Kingdom
| | - Karen MC Rowe
- Sciences Department, Museums VictoriaMelbourneAustralia
| | - Teuku Reza Ferasyi
- Faculty of Veterinary Medicine, Universitas Syiah KualaDarussalamIndonesia
- Jiangsu Key Laboratory of Phylogenomics and Comparative Genomics, School of Life Sciences, Jiangsu Normal UniversityXuzhouChina
| | - Shaoyuan Wu
- Department of Biochemistry and Molecular Biology, 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, School of Basic Medical Sciences, Tianjin Medical UniversityTianjinChina
- Center for Tropical Veterinary Studies – One Health Collaboration Center, Universitas Syiah KualaDarussalamIndonesia
| | - Guinevere OU Wogan
- Museum of Vertebrate Zoology and Department of Environmental Science, Policy, and Management, University of California, BerkeleyBerkeleyUnited States
| | - Rauri CK Bowie
- Museum of Vertebrate Zoology and Department of Integrative Biology, University of California, BerkeleyBerkeleyUnited States
| | - Frank E Rheindt
- National University of Singapore, Department of Biological SciencesSingaporeSingapore
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7
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Mays HL, Oehler DA, Morrison KW, Morales AE, Lycans A, Perdue J, Battley PF, Cherel Y, Chilvers BL, Crofts S, Demongin L, Fry WR, Hiscock J, Kusch A, Marin M, Poisbleau M, Quillfeldt P, Raya Rey A, Steinfurth A, Thompson DR, Weakley LA. Phylogeography, Population Structure, and Species Delimitation in Rockhopper Penguins (Eudyptes chrysocome and Eudyptes moseleyi). J Hered 2020; 110:801-817. [PMID: 31737899 DOI: 10.1093/jhered/esz051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 08/10/2019] [Indexed: 01/05/2023] Open
Abstract
Rockhopper penguins are delimited as 2 species, the northern rockhopper (Eudyptes moseleyi) and the southern rockhopper (Eudyptes chrysocome), with the latter comprising 2 subspecies, the western rockhopper (Eudyptes chrysocome chrysocome) and the eastern rockhopper (Eudyptes chrysocome filholi). We conducted a phylogeographic study using multilocus data from 114 individuals sampled across 12 colonies from the entire range of the northern/southern rockhopper complex to assess potential population structure, gene flow, and species limits. Bayesian and likelihood methods with nuclear and mitochondrial DNA, including model testing and heuristic approaches, support E. moseleyi and E. chrysocome as distinct species lineages with a divergence time of 0.97 Ma. However, these analyses also indicated the presence of gene flow between these species. Among southern rockhopper subspecies, we found evidence of significant gene flow and heuristic approaches to species delimitation based on the genealogical diversity index failed to delimit them as species. The best-supported population models for the southern rockhoppers were those where E. c. chrysocome and E. c. filholi were combined into a single lineage or 2 lineages with bidirectional gene flow. Additionally, we found that E. c. filholi has the highest effective population size while E. c. chrysocome showed similar effective population size to that of the endangered E. moseleyi. We suggest that the current taxonomic definitions within rockhopper penguins be upheld and that E. chrysocome populations, all found south of the subtropical front, should be treated as a single taxon with distinct management units for E. c. chrysocome and E. c. filholi.
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Affiliation(s)
- Herman L Mays
- Department of Biological Sciences, Marshall University, Huntington, WV
| | - David A Oehler
- Wildlife Conservation Society, Bronx, NY.,Feather Link, Inc., Cincinnati, OH
| | | | - Ariadna E Morales
- Division of Vertebrate Zoology, American Museum of Natural History, New York, NY
| | - Alyssa Lycans
- Department of Biological Sciences, Marshall University, Huntington, WV
| | - Justin Perdue
- Department of Biological Sciences, Marshall University, Huntington, WV
| | - Phil F Battley
- School of Agriculture and Environment, Massey University, Palmerston North, New Zealand
| | - Yves Cherel
- Centre d'Etudes Biologiques de Chizé, UMR 7372 du CNRS-La Rochelle Université, Villiers-en-Bois, France
| | - B Louise Chilvers
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Sarah Crofts
- Falklands Conservation, Stanley, Falkland Islands
| | | | | | - Jo Hiscock
- Department of Conservation, Invercargill, New Zealand
| | - Alejandro Kusch
- Wildlife Conservation Society, Bronx, NY.,Feather Link, Inc., Cincinnati, OH
| | - Manuel Marin
- Feather Link, Inc., Cincinnati, OH.,Section of Ornithology, Natural History Museum of Los Angeles County, Los Angeles, CA
| | - Maud Poisbleau
- Department of Biology, Behavioural Ecology and Ecophysiology Group, University of Antwerp, Antwerp (Wilrijk), Belgium
| | - Petra Quillfeldt
- Department of Animal Ecology & Systematics, Justus Liebig University Giessen, Giessen, Germany
| | - Andrea Raya Rey
- National Scientific and Technical Research Council, Austral Center for Scientific Investigation, Ushuaia, Argentina.,Institute of Polar Science, National University of Tierra del Fuego, Ushuaia, Argentina.,Wildlife Conservation Society, Buenos Aires, Argentina
| | - Antje Steinfurth
- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch, South Africa.,RSPB Centre for Conservation Science, Royal Society for the Protection of Birds, Cambridge, UK
| | - David R Thompson
- National Institute of Water and Atmospheric Research, Wellington, New Zealand
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8
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Çoraman E, Dundarova H, Dietz C, Mayer F. Patterns of mtDNA introgression suggest population replacement in Palaearctic whiskered bat species. ROYAL SOCIETY OPEN SCIENCE 2020; 7:191805. [PMID: 32742679 PMCID: PMC7353987 DOI: 10.1098/rsos.191805] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 04/23/2020] [Indexed: 06/11/2023]
Abstract
Secondary contacts can play a major role in the evolutionary histories of species. Various taxa diverge in allopatry and later on come into secondary contact during range expansions. When they meet, their interactions and the extent of gene flow depend on the level of their ecological differentiation and the strength of their reproductive isolation. In this study, we present the multilocus phylogeography of two cryptic whiskered bat species, Myotis mystacinus and M. davidii, with a particular focus on their putative sympatric zone. Our findings suggest that M. mystacinus and M. davidii evolved in allopatry and came into secondary contact during range expansions. Individuals in the area of secondary contact, in Anatolia and the Balkans, have discordant population assignments based on the mitochondrial and the nuclear datasets. These observed patterns suggest that the local M. mystacinus populations hybridized with expanding M. davidii populations, which resulted in mitochondrial introgression from the former. In the introgression area, M. mystacinus individuals with concordant nuclear and mitochondrial genotypes were identified in relatively few locations, suggesting that the indigenous populations might have been largely replaced by invading M. davidii. Changing environmental conditions coupled with ecological competition is the likely reason for this replacement. Our study presents one possible example of a historical population replacement that was captured in phylogeographic patterns.
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Affiliation(s)
- Emrah Çoraman
- Eurasia Institute of Earth Sciences, Department of Ecology and Evolution, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
- Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Berlin 10115, Germany
- Natural Science Collection, Martin-Luther-University Halle-Wittenberg, Domplatz 4, Halle (Saale) D-06108, Germany
| | - Heliana Dundarova
- Bulgarian Academy of Sciences, Institute of Biodiversity and Ecosystem Research, 1 Tsar Osvoboditel, Sofia 1000, Bulgaria
| | - Christian Dietz
- Biologische Gutachten Dietz, Balinger Str. 15, 72401 Haigerloch, Germany
| | - Frieder Mayer
- Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Berlin 10115, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstraße 6, 14195 Berlin, Germany
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9
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Duckett DJ, Pelletier TA, Carstens BC. Identifying model violations under the multispecies coalescent model using P2C2M.SNAPP. PeerJ 2020; 8:e8271. [PMID: 31949994 PMCID: PMC6956792 DOI: 10.7717/peerj.8271] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 11/22/2019] [Indexed: 11/20/2022] Open
Abstract
Phylogenetic estimation under the multispecies coalescent model (MSCM) assumes all incongruence among loci is caused by incomplete lineage sorting. Therefore, applying the MSCM to datasets that contain incongruence that is caused by other processes, such as gene flow, can lead to biased phylogeny estimates. To identify possible bias when using the MSCM, we present P2C2M.SNAPP. P2C2M.SNAPP is an R package that identifies model violations using posterior predictive simulation. P2C2M.SNAPP uses the posterior distribution of species trees output by the software package SNAPP to simulate posterior predictive datasets under the MSCM, and then uses summary statistics to compare either the empirical data or the posterior distribution to the posterior predictive distribution to identify model violations. In simulation testing, P2C2M.SNAPP correctly classified up to 83% of datasets (depending on the summary statistic used) as to whether or not they violated the MSCM model. P2C2M.SNAPP represents a user-friendly way for researchers to perform posterior predictive model checks when using the popular SNAPP phylogenetic estimation program. It is freely available as an R package, along with additional program details and tutorials.
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Affiliation(s)
- Drew J Duckett
- Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, Columbus, OH, USA
| | | | - Bryan C Carstens
- Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, Columbus, OH, USA
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10
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Wang X, Que P, Heckel G, Hu J, Zhang X, Chiang CY, Zhang N, Huang Q, Liu S, Martinez J, Pagani-Núñez E, Dingle C, Leung YY, Székely T, Zhang Z, Liu Y. Genetic, phenotypic and ecological differentiation suggests incipient speciation in two Charadrius plovers along the Chinese coast. BMC Evol Biol 2019; 19:135. [PMID: 31248363 PMCID: PMC6598359 DOI: 10.1186/s12862-019-1449-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 05/29/2019] [Indexed: 02/01/2023] Open
Abstract
Background Speciation with gene flow is an alternative to the nascence of new taxa in strict allopatric separation. Indeed, many taxa have parapatric distributions at present. It is often unclear if these are secondary contacts, e.g. caused by past glaciation cycles or the manifestation of speciation with gene flow, which hampers our understanding of how different forces drive diversification. Here we studied genetic, phenotypic and ecological aspects of divergence in a pair of incipient shorebird species, the Kentish (Charadrius alexandrinus) and the White-faced Plovers (C. dealbatus), shorebirds with parapatric breeding ranges along the Chinese coast. We assessed divergence based on molecular markers with different modes of inheritance and quantified phenotypic and ecological divergence in aspects of morphometric, dietary and climatic niches. Results Our integrative analyses revealed small to moderate levels of genetic and phenotypic distinctiveness with symmetric gene flow across the contact area at the Chinese coast. The two species diverged approximately half a million years ago in dynamic isolation with secondary contact occurring due to cycling sea level changes between the Eastern and Southern China Sea in the mid-late Pleistocene. We found evidence of character displacement and ecological niche differentiation between the two species, invoking the role of selection in facilitating divergence despite gene flow. Conclusion These findings imply that ecology can indeed counter gene flow through divergent selection and thus contributes to incipient speciation in these plovers. Furthermore, our study highlights the importance of using integrative datasets to reveal the evolutionary history and assist the inference of mechanisms of speciation. Electronic supplementary material The online version of this article (10.1186/s12862-019-1449-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xuejing Wang
- State Key Laboratory of Biocontrol, Department of Ecology, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China.,Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012, Bern, Switzerland
| | - Pinjia Que
- Ministry of Education Key Laboratory for Biodiversity and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing, 100875, China
| | - Gerald Heckel
- Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012, Bern, Switzerland.,Swiss Institute of Bioinformatics, Genopode, 1015, Lausanne, Switzerland
| | - Junhua Hu
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Xuecong Zhang
- State Key Laboratory of Biocontrol, Department of Ecology, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Chung-Yu Chiang
- Department of Environmental Science, Tunhai University, Taichun, Taiwan
| | - Nan Zhang
- State Key Laboratory of Biocontrol, Department of Ecology, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Qin Huang
- State Key Laboratory of Biocontrol, Department of Ecology, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Simin Liu
- State Key Laboratory of Biocontrol, Department of Ecology, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | | | - Emilio Pagani-Núñez
- State Key Laboratory of Biocontrol, Department of Ecology, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Caroline Dingle
- School of Biological Sciences, The University of Hong Kong, Hong Kong, SAR, China
| | - Yu Yan Leung
- School of Biological Sciences, The University of Hong Kong, Hong Kong, SAR, China
| | - Tamás Székely
- State Key Laboratory of Biocontrol, Department of Ecology, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China.,Milner Center for Evolution, Department of Biology and Biochemistry, University of Bath, Bath, BA1 7AY, UK
| | - Zhengwang Zhang
- Ministry of Education Key Laboratory for Biodiversity and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing, 100875, China
| | - Yang Liu
- State Key Laboratory of Biocontrol, Department of Ecology, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China.
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11
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Lausen CL, Proctor M, Nagorsen DW, Burles D, Paetkau D, Harmston E, Blejwas K, Govindarajulu P, Friis L. Population genetics reveal Myotis keenii(Keen’s myotis) and Myotis evotis(long-eared myotis) to be a single species. CAN J ZOOL 2019. [DOI: 10.1139/cjz-2018-0113] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Recognizing delineations of gene flow among groups of animals can be challenging but is necessary for conservation and management. Of particular importance is the identification of species boundaries. Several physical and genetic traits have been used with mixed success to distinguish Myotis keenii (Merriam, 1895) (Keen’s myotis) and Myotis evotis (H. Allen, 1864) (long-eared myotis), but it is unclear whether species distinction is biologically warranted. We generated 12–14 microsatellite locus genotypes for 275 long-eared Myotis representing four species — M. keenii, M. evotis, Myotis septentrionalis (Trouessart, 1897) (northern myotis), and Myotis thysanodes Miller, 1897 (fringed myotis) — from across northwestern North America and 23 Myotis lucifugus (Le Conte, 1831) (little brown myotis) as the outgroup. Population genetic analyses revealed four well-defined groups (species): M. septentrionalis, M. thysanodes, M. lucifugus, and a single group comprising M. keenii and M. evotis. We document high rates of gene flow within M. evotis/M. keenii. Cytochrome b gene (mtDNA) sequencing failed to resolve morphologically identifiable species. We highlight the importance of geographically thorough investigation of genetic connectivity (nuclear markers) when assessing taxonomic status of closely related groups. We document a morphometric cline within M. evotis/M. keenii that may in part explain earlier analyses that led to the description of the smaller bodied M. keenii (type locality: Haida Gwaii). We conclude that M. keenii does not qualify as a genetic or biological species.
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Affiliation(s)
- Cori L. Lausen
- Wildlife Conservation Society Canada, P.O. Box 606, Kaslo, BC V0G 1M0, Canada
| | - Michael Proctor
- Birchdale Ecological Ltd., P.O. Box 606, Kaslo, BC V0G 1M0, Canada
| | - David W. Nagorsen
- Royal British Columbia Museum, 675 Belleville Street, Victoria, BC V8W 9W2, Canada
| | - Doug Burles
- Parks Canada, Gwaii Haanas National Park Reserve and Haida Heritage Site, Queen Charlotte, BC V0T 1S0, Canada
| | - David Paetkau
- Wildlife Genetics International, #200-182 Baker Street, Nelson, BC V1L 4H2, Canada
| | - Erin Harmston
- Wildlife Genetics International, #200-182 Baker Street, Nelson, BC V1L 4H2, Canada
| | - Karen Blejwas
- Alaska Department of Fish and Game, 802 3rd Street, Douglas, AK 99824, USA
| | - Purnima Govindarajulu
- BC Ministry of Environment and Climate Change Strategy, 4th Floor-525 Superior Street, Victoria, BC V8V 0C5, Canada
| | - Laura Friis
- BC Ministry of Environment and Climate Change Strategy (retired)
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12
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Andriollo T, Ashrafi S, Arlettaz R, Ruedi M. Porous barriers? Assessment of gene flow within and among sympatric long-eared bat species. Ecol Evol 2018; 8:12841-12854. [PMID: 30619587 PMCID: PMC6309003 DOI: 10.1002/ece3.4714] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 10/18/2018] [Accepted: 10/30/2018] [Indexed: 11/11/2022] Open
Abstract
Species are the basic units for measuring biodiversity and for comprehending biological interactions. Yet, their delineation is often contentious, especially in groups that are both diverse and phenotypically conservative. Three cryptic species of long-eared bats, Plecotus auritus, P. austriacus, and P. macrobullaris, co-occur over extensive areas of Western Europe. The latter is a fairly recent discovery, questioning the overall diversity of the entire Plecotus complex. Yet, high morphological and acoustic similarities compromise the reliable identification of long-eared bats in the field. We postulate that such extensive phenotypic overlap, along with the recurrent observation of morphologically intermediate individuals, may hide rampant interspecific hybridization. Based on a geographic sampling centered on areas of sympatry in the Alps and Corsica, we assessed the level of reproductive isolation of these three Plecotus species with mitochondrial and nuclear markers, looking at both inter- and intraspecific genetic population structuring. No sign of hybridization was detected between these three species that appear well separated biologically. Genetic structuring of populations, however, reflected different species-specific responses to environmental connectivity, that is, to the presence of orographic or sea barriers. While the Alpine range and the Ligurian Sea coincided with sharp genetic discontinuities in P. macrobullaris and P. austriacus, the more ubiquitous P. auritus showed no significant population structuration. There were clear phylogeographic discrepancies between microsatellite and mitochondrial markers at the intraspecific level, however, which challenges the reliance on simple barcoding approaches for the delineation of sound conservation units.
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Affiliation(s)
- Tommy Andriollo
- Department of Mammalogy and OrnithologyNatural History Museum of GenevaGenevaSwitzerland
- Section of Biology, Faculty of SciencesUniversity of GenevaGenevaSwitzerland
| | - Sohrab Ashrafi
- Department of Environmental Sciences, Faculty of Natural ResourcesUniversity of TehranKarajIran
| | - Raphaël Arlettaz
- Division of Conservation Biology, Institute of Ecology and EvolutionUniversity of BernBernSwitzerland
| | - Manuel Ruedi
- Department of Mammalogy and OrnithologyNatural History Museum of GenevaGenevaSwitzerland
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13
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Salgado‐Roa FC, Pardo‐Diaz C, Lasso E, Arias CF, Solferini VN, Salazar C. Gene flow and Andean uplift shape the diversification of Gasteracantha cancriformis (Araneae: Araneidae) in Northern South America. Ecol Evol 2018; 8:7131-7142. [PMID: 30073072 PMCID: PMC6065347 DOI: 10.1002/ece3.4237] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/27/2018] [Accepted: 05/03/2018] [Indexed: 01/08/2023] Open
Abstract
The Andean uplift has played a major role in shaping the current Neotropical biodiversity. However, in arthropods other than butterflies, little is known about how this geographic barrier has impacted species historical diversification. Here, we examined the phylogeography of the widespread color polymorphic spider Gasteracantha cancriformis to evaluate the effect of the northern Andean uplift on its divergence and assess whether its diversification occurred in the presence of gene flow. We inferred phylogenetic relationships and divergence times in G. cancriformis using mitochondrial and nuclear data from 105 individuals in northern South America. Genetic diversity, divergence, and population structure were quantified. We also compared multiple demographic scenarios for this species using a model-based approach (phrapl) to determine divergence with or without gene flow. At last, we evaluated the association between genetic variation and color polymorphism. Both nuclear and mitochondrial data supported two well-differentiated clades, which correspond to populations occurring on opposite sides of the Eastern cordillera of the Colombian Andes. The final uplift of this cordillera was identified as the most likely force that shaped the diversification of G. cancriformis in northern South America, resulting in a cis- and trans-Andean phylogeographic structure for the species. We also found shared genetic variation between the cis- and trans-Andean clades, which is better explained by a scenario of historical divergence in the face of gene flow. This has been likely facilitated by the presence of low-elevation passes across the Eastern Colombian cordillera. Our work constitutes the first example in which the Andean uplift coupled with gene flow influenced the evolutionary history of an arachnid lineage.
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Affiliation(s)
- Fabian C. Salgado‐Roa
- Programa de BiologíaFacultad de Ciencias Naturales y MatemáticasUniversidad del RosarioBogotáColombia
- Departamento de Ciencias BiológicasUniversidad de los AndesBogotáColombia
| | - Carolina Pardo‐Diaz
- Programa de BiologíaFacultad de Ciencias Naturales y MatemáticasUniversidad del RosarioBogotáColombia
| | - Eloisa Lasso
- Departamento de Ciencias BiológicasUniversidad de los AndesBogotáColombia
- Smithsonian Tropical Research InstituteAncónPanamá
| | | | - Vera Nisaka Solferini
- Department of Genetics, Evolution and BioagentsInstitute of BiologyUniversity of CampinasCampinasSao PauloBrazil
| | - Camilo Salazar
- Programa de BiologíaFacultad de Ciencias Naturales y MatemáticasUniversidad del RosarioBogotáColombia
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14
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Platt RN, Faircloth BC, Sullivan KAM, Kieran TJ, Glenn TC, Vandewege MW, Lee TE, Baker RJ, Stevens RD, Ray DA. Conflicting Evolutionary Histories of the Mitochondrial and Nuclear Genomes in New World Myotis Bats. Syst Biol 2018; 67:236-249. [PMID: 28945862 PMCID: PMC5837689 DOI: 10.1093/sysbio/syx070] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 07/31/2017] [Accepted: 08/15/2017] [Indexed: 01/05/2023] Open
Abstract
The rapid diversification of Myotis bats into more than 100 species is one of the most extensive mammalian radiations available for study. Efforts to understand relationships within Myotis have primarily utilized mitochondrial markers and trees inferred from nuclear markers lacked resolution. Our current understanding of relationships within Myotis is therefore biased towards a set of phylogenetic markers that may not reflect the history of the nuclear genome. To resolve this, we sequenced the full mitochondrial genomes of 37 representative Myotis, primarily from the New World, in conjunction with targeted sequencing of 3648 ultraconserved elements (UCEs). We inferred the phylogeny and explored the effects of concatenation and summary phylogenetic methods, as well as combinations of markers based on informativeness or levels of missing data, on our results. Of the 294 phylogenies generated from the nuclear UCE data, all are significantly different from phylogenies inferred using mitochondrial genomes. Even within the nuclear data, quartet frequencies indicate that around half of all UCE loci conflict with the estimated species tree. Several factors can drive such conflict, including incomplete lineage sorting, introgressive hybridization, or even phylogenetic error. Despite the degree of discordance between nuclear UCE loci and the mitochondrial genome and among UCE loci themselves, the most common nuclear topology is recovered in one quarter of all analyses with strong nodal support. Based on these results, we re-examine the evolutionary history of Myotis to better understand the phenomena driving their unique nuclear, mitochondrial, and biogeographic histories.
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Affiliation(s)
- Roy N Platt
- Department of Biological Sciences, Texas Tech University, 2901 Main St, Lubbock, TX, USA
| | - Brant C Faircloth
- Department of Biological Sciences and Museum of Natural Science, Louisiana State University, 202 Life Science Building, Baton Rouge, LA, USA
| | - Kevin A M Sullivan
- Department of Biological Sciences, Texas Tech University, 2901 Main St, Lubbock, TX, USA
| | - Troy J Kieran
- Department of Environmental Health Science, University of Georgia, 206 Environmental Health Sciences Building, Athens, GA, USA
| | - Travis C Glenn
- Department of Environmental Health Science, University of Georgia, 206 Environmental Health Sciences Building, Athens, GA, USA
| | - Michael W Vandewege
- Department of Biological Sciences, Texas Tech University, 2901 Main St, Lubbock, TX, USA
| | - Thomas E Lee
- Department of Biology, Abilene Christian University, 1600 Campus Ct. Abilene, TX, USA
| | - Robert J Baker
- Department of Biological Sciences, Texas Tech University, 2901 Main St, Lubbock, TX, USA
| | - Richard D Stevens
- Natural Resource Management, Texas Tech University, 2901 Main St, Lubbock, TX, USA
| | - David A Ray
- Department of Biological Sciences, Texas Tech University, 2901 Main St, Lubbock, TX, USA
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15
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Malaney JL, Demboski JR, Cook JA. Integrative species delimitation of the widespread North American jumping mice (Zapodinae). Mol Phylogenet Evol 2017; 114:137-152. [PMID: 28600183 DOI: 10.1016/j.ympev.2017.06.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 05/12/2017] [Accepted: 06/01/2017] [Indexed: 01/10/2023]
Abstract
Delimiting species can be challenging, but is a key step for the critical examination of evolutionary history and for prioritizing conservation efforts. Because systematic relationships are often determined iteratively using tests based on taxonomy, such methods can fail to detect cryptic variation and result in biased conclusions. Conversely, discovery-based approaches provide a powerful way to define operational taxonomic units and test species boundaries. We compare both approaches (taxonomy-based delimitation - TBD and discovery-based delimitation - DBD) within North American jumping mice (Zapodinae) using broad sampling, multilocus analyses, and ecological tests. This group diversified through the dynamic glacial-interglacial periods of the Quaternary and phylogeographic tests reveal 28 lineages that correspond poorly with current taxonomy (4 species, 32 nominal subspecies). However, neither the 4-species or 28-lineage hypotheses are optimal for species-level classification. Rather, information theoretic approaches (Bayes Factors) indicate a 15-species hypothesis is best for characterizing genetic variation in this group, with subsequent iterative pairwise ecological tests failing to confirm four species pairs. Taken together, evolutionary and ecological tests capture divergence among 11 putative species that, if upheld by additional tests, will lead to taxonomic revision and reevaluation of conservation plans.
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Affiliation(s)
- Jason L Malaney
- Department of Biology, Austin Peay State University, Clarksville, TN 37044, USA; Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA.
| | - John R Demboski
- Department of Zoology, Denver Museum of Nature & Science, Denver, CO 80205, USA.
| | - Joseph A Cook
- Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA.
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