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Noorhidayah M, Azrizal-Wahid N, Low VL, Yusoff NR. Genetic diversity and phylogeographic patterns of the peacock jewel-damselfly, Rhinocypha fenestrella (Rambur, 1842). PLoS One 2024; 19:e0301392. [PMID: 38578719 PMCID: PMC10997100 DOI: 10.1371/journal.pone.0301392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 03/11/2024] [Indexed: 04/07/2024] Open
Abstract
Despite is known to have widespread distribution and the most active species of the family Chlorocyphidae, the molecular data of Rhinocypha fenestrella (Rambur, 1842) are relatively scarce. The present study is the first that examined the genetic diversity and phylogeographic pattern of the peacock jewel-damselfly R. fenestrella by sequencing the cytochrome C oxidase I (cox1) and 16S rRNA gene regions from 147 individuals representing eight populations in Malaysia. A total of 26 and 10 unique haplotypes were revealed by the cox1 and 16S rRNA genes, respectively, and 32 haplotypes were recovered by the concatenated sequences of cox1+16S. Analyses indicated that haplotype AB2 was the most frequent and the most widespread haplotype in Malaysia while haplotype AB1 was suggested as the common ancestor haplotype of the R. fenestrella that may arose from the Negeri Sembilan as discovered from cox1+16S haplotype network analysis. Overall haplotype and nucleotide diversities of the concatenated sequences were Hd = 0.8937 and Pi = 0.0028, respectively, with great genetic differentiation (FST = 0.6387) and low gene flow (Nm = 0.14). Population from Pahang presented the highest genetic diversity (Hd = 0.8889, Pi = 0.0022, Nh = 9), whereas Kedah population demonstrated the lowest diversity (Hd = 0.2842, Pi = 0.0003, Nh = 4). The concatenated sequences of cox1+16S showed genetic divergence ranging from 0.09% to 0.97%, whereas the genetic divergence for cox1 and 16S rRNA genes were 0.16% to 1.63% and 0.01% to 0.75% respectively. This study provides for the first-time insights on the intraspecific genetic diversity, phylogeographic pattern and ancestral haplotype of Rhinocypha fenestrella. The understanding of molecular data especially phylogeographic pattern can enhance the knowledge about insect origin, their diversity, and capability to disperse in particular environments.
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Affiliation(s)
- Mamat Noorhidayah
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Noor Azrizal-Wahid
- Department of Biology, Faculty of Science, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Van Lun Low
- Higher Institution Centre of Excellence (HICoE), Tropical Infectious Diseases Research & Education Centre (TIDREC), Universiti Malaya, Kuala Lumpur, Malaysia
| | - Norma-Rashid Yusoff
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
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2
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Cheng R, Luo A, Orr M, Ge D, Hou Z, Qu Y, Guo B, Zhang F, Sha Z, Zhao Z, Wang M, Shi X, Han H, Zhou Q, Li Y, Liu X, Shao C, Zhang A, Zhou X, Zhu C. Cryptic diversity begets challenges and opportunities in biodiversity research. Integr Zool 2024. [PMID: 38263700 DOI: 10.1111/1749-4877.12809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
How many species of life are there on Earth? This is a question that we want to know but cannot yet answer. Some scholars speculate that the number of species may reach 2.2 billion when considering cryptic diversity and that each morphology-based insect species may contain an average of 3.1 cryptic species. With nearly two million described species, such high estimates of cryptic diversity would suggest that cryptic species are widespread. The development of molecular species delimitation has led to the discovery of a large number of cryptic species, and cryptic biodiversity has gradually entered our field of vision and attracted more attention. This paper introduces the concept of cryptic species, how they evolve, and methods by which they may be discovered and confirmed, and provides theoretical and methodological guidance for the study of hidden species. A workflow of how to confirm cryptic species is provided. In addition, the importance and reliability of multi-evidence-based integrated taxonomy are reaffirmed as a way to better standardize decision-making processes. Special focus on cryptic diversity and increased funding for taxonomy is needed to ensure that cryptic species in hyperdiverse groups are discoverable and described. An increased focus on cryptic species in the future will naturally arise as more difficult groups are studied, and thereby, we may finally better understand the rules governing the evolution and maintenance of cryptic biodiversity.
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Affiliation(s)
- Rui Cheng
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Arong Luo
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Michael Orr
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- Entomologie, Staatliches Museum für Naturkunde Stuttgart, Stuttgart, Germany
| | - Deyan Ge
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Zhong'e Hou
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Yanhua Qu
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Baocheng Guo
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Feng Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Zhongli Sha
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Zhe Zhao
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Mingqiang Wang
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Xiaoyu Shi
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Hongxiang Han
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Qingsong Zhou
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Yuanning Li
- Institute of Oceanography, Shandong University, Qingdao, China
| | - Xingyue Liu
- Department of Entomology, China Agricultural University, Beijing, China
| | - Chen Shao
- College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Aibing Zhang
- College of Life Science, Capital Normal University, Beijing, China
| | - Xin Zhou
- Department of Entomology, China Agricultural University, Beijing, China
| | - Chaodong Zhu
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- State Key Laboratory of Integrated Pest Management, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- College of Life Sciences/International College, University of Chinese Academy of Sciences, Beijing, China
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3
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Abalde S, Crocetta F, Tenorio MJ, D'Aniello S, Fassio G, Rodríguez-Flores PC, Uribe JE, M L Afonso C, Oliverio M, Zardoya R. Hidden species diversity and mito-nuclear discordance within the Mediterranean cone snail, Lautoconus ventricosus. Mol Phylogenet Evol 2023:107838. [PMID: 37286063 DOI: 10.1016/j.ympev.2023.107838] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 05/15/2023] [Accepted: 05/31/2023] [Indexed: 06/09/2023]
Abstract
The Mediterranean cone snail, Lautoconus ventricosus, is currently considered a single species inhabiting the whole Mediterranean basin and the adjacent Atlantic coasts. Yet, no population genetic study has assessed its taxonomic status. Here, we collected 245 individuals from 75 localities throughout the Mediterranean Sea and used cox1 barcodes, complete mitochondrial genomes, and genome skims to test whether L. ventricosus represents a complex of cryptic species. The maximum likelihood phylogeny based on complete mitochondrial genomes recovered six main clades (hereby named blue, brown, green, orange, red, and violet) with sufficient sequence divergence to be considered putative species. On the other hand, phylogenomic analyses based on 437 nuclear genes only recovered four out of the six clades: blue and orange clades were thoroughly mixed and the brown one was not recovered. This mito-nuclear discordance revealed instances of incomplete lineage sorting and introgression, and may have caused important differences in the dating of main cladogenetic events. Species delimitation tests proposed the existence of at least three species: green, violet, and red+blue+orange (i.e., cyan). Green plus cyan (with sympatric distributions) and violet, had West and East Mediterranean distributions, respectively, mostly separated by the Siculo-Tunisian biogeographical barrier. Morphometric analyses of the shell using species hypotheses as factor and shell length as covariate showed that the discrimination power of the studied parameters was only 70.2%, reinforcing the cryptic nature of the uncovered species, and the importance of integrative taxonomic approaches considering morphology, ecology, biogeography, and mitochondrial and nuclear population genetic variation.
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Affiliation(s)
- Samuel Abalde
- Department of Zoology, Swedish Museum of Natural History, Box 50007, 10405 Stockholm, Sweden; Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal 2, 28006 Madrid, Spain.
| | - Fabio Crocetta
- Department of Integrative Marine Ecology (EMI), Stazione Zoologica Anton Dohrn, Villa Comunale, I-80121 Napoli, Italy
| | - Manuel J Tenorio
- Departamento CMIM y Q. Inorgánica-INBIO, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
| | - Salvatore D'Aniello
- Department of Biology and Evolution of Marine Organisms (BEOM), Stazione Zoologica Anton Dohrn, Villa Comunale, I-80121 Napoli, Italy
| | - Giulia Fassio
- Department of Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Zoology-Viale dell'Università 32, 00185 Rome, Italy
| | - Paula C Rodríguez-Flores
- Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal 2, 28006 Madrid, Spain; Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge MA 02138, USA
| | - Juan E Uribe
- Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal 2, 28006 Madrid, Spain
| | - Carlos M L Afonso
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, Campus de Gambelas, 8005 - 139 Faro, Portugal
| | - Marco Oliverio
- Department of Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Zoology-Viale dell'Università 32, 00185 Rome, Italy
| | - Rafael Zardoya
- Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal 2, 28006 Madrid, Spain
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4
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The Quality of Sequence Data Affects Biodiversity and Conservation Perspectives in the Neotropical Damselfly Megaloprepus caerulatus. DIVERSITY 2022. [DOI: 10.3390/d14121056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Ideally, the footprint of the evolutionary history of a species is drawn from integrative studies including quantitative and qualitative taxonomy, biogeography, ecology, and molecular genetics. In today’s research, species delimitations and identification of conservation units is often accompanied by a set of—at minimum—two sequence markers appropriate for the systematic level under investigation. Two such studies re-evaluated the species status in the world’s largest Odonata, the Neotropical damselfly Megaloprepus caerulatus. The species status of the genus Megaloprepus has long been debated. Despite applying a highly similar set of sequence markers, the two studies reached different conclusions concerning species status and population genetic relationships. In this study, we took the unique opportunity to compare the two datasets and analyzed the reasons for those incongruences. The two DNA sequence markers used (16S rDNA and CO1) were re-aligned using a strict conservative approach and the analyses used in both studies were repeated. Going step by step back to the first line of data handling, we show that a high number of unresolved characters in the sequence alignments as well as internal gaps are responsible for the different outcomes in terms of species delimitations and population genetic relationships. Overall, this study shows that high quality raw sequence data are an indispensable requirement, not only in odonate research.
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5
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Geiger M, Koblmüller S, Assandri G, Chovanec A, Ekrem T, Fischer I, Galimberti A, Grabowski M, Haring E, Hausmann A, Hendrich L, Koch S, Mamos T, Rothe U, Rulik B, Rewicz T, Sittenthaler M, Stur E, Tończyk G, Zangl L, Moriniere J. Coverage and quality of DNA barcode references for Central and Northern European Odonata. PeerJ 2021; 9:e11192. [PMID: 33986985 PMCID: PMC8101477 DOI: 10.7717/peerj.11192] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 03/09/2021] [Indexed: 12/03/2022] Open
Abstract
Background Dragonflies and damselflies (Odonata) are important components in biomonitoring due to their amphibiotic lifecycle and specific habitat requirements. They are charismatic and popular insects, but can be challenging to identify despite large size and often distinct coloration, especially the immature stages. DNA-based assessment tools rely on validated DNA barcode reference libraries evaluated in a supraregional context to minimize taxonomic incongruence and identification mismatches. Methods This study reports on findings from the analysis of the most comprehensive DNA barcode dataset for Central European Odonata to date, with 103 out of 145 recorded European species included and publicly deposited in the Barcode of Life Data System (BOLD). The complete dataset includes 697 specimens (548 adults, 108 larvae) from 274 localities in 16 countries with a geographic emphasis on Central Europe. We used BOLD to generate sequence divergence metrics and to examine the taxonomic composition of the DNA barcode clusters within the dataset and in comparison with all data on BOLD. Results Over 88% of the species included can be readily identified using their DNA barcodes and the reference dataset provided. Considering the complete European dataset, unambiguous identification is hampered in 12 species due to weak mitochondrial differentiation and partial haplotype sharing. However, considering the known species distributions only two groups of five species possibly co-occur, leading to an unambiguous identification of more than 95% of the analysed Odonata via DNA barcoding in real applications. The cases of small interspecific genetic distances and the observed deep intraspecific variation in Cordulia aenea (Linnaeus, 1758) are discussed in detail and the corresponding taxa in the public reference database are highlighted. They should be considered in future applications of DNA barcoding and metabarcoding and represent interesting evolutionary biological questions, which call for in depth analyses of the involved taxa throughout their distribution ranges.
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Affiliation(s)
- Matthias Geiger
- Zoologisches Forschungsmuseum Alexander Koenig (ZFMK) - Leibniz Institute for Animal Biodiversity, Bonn, Germany
| | | | - Giacomo Assandri
- Area per l'Avifauna Migratrice, Istituto Superiore per la Protezione e la Ricerca Ambientale (ISPRA), Ozzano Emilia, BO, Italy
| | - Andreas Chovanec
- Federal Ministry of Agriculture, Regions and Tourism, Vienna, Austria
| | - Torbjørn Ekrem
- Department of Natural History, NTNU University Museum, Norwegian University of Science and Technology, Trondheim, Norway
| | - Iris Fischer
- Department of Functional and Evolutionary Ecology, University of Vienna, Vienna, Austria.,Central Research Laboratories, Natural History Museum Vienna, Vienna, Austria.,Department of Evolutionary Biology, University of Vienna, Vienna, Austria
| | - Andrea Galimberti
- Department of Biotechnology and Biosciences, ZooPlantLab, University of Milano - Bicocca, Milano, Italy
| | - Michał Grabowski
- Department of Invertebrate Zoology and Hydrobiology, University of Łódź, Łódź, Poland
| | - Elisabeth Haring
- Department of Functional and Evolutionary Ecology, University of Vienna, Vienna, Austria.,Central Research Laboratories, Natural History Museum Vienna, Vienna, Austria.,Department of Evolutionary Biology, University of Vienna, Vienna, Austria
| | - Axel Hausmann
- SNSB-Zoologische Staatssammlung, München, BY, Germany
| | - Lars Hendrich
- SNSB-Zoologische Staatssammlung, München, BY, Germany
| | - Stefan Koch
- Independent Researcher, Mindelheim, BY, Germany
| | - Tomasz Mamos
- Department of Invertebrate Zoology and Hydrobiology, University of Łódź, Łódź, Poland
| | - Udo Rothe
- Naturkundemuseum Potsdam, Potsdam, BB, Germany
| | - Björn Rulik
- Zoologisches Forschungsmuseum Alexander Koenig (ZFMK) - Leibniz Institute for Animal Biodiversity, Bonn, Germany
| | - Tomasz Rewicz
- Department of Invertebrate Zoology and Hydrobiology, University of Łódź, Łódź, Poland
| | - Marcia Sittenthaler
- Central Research Laboratories, Natural History Museum Vienna, Vienna, Austria
| | - Elisabeth Stur
- Department of Natural History, NTNU University Museum, Norwegian University of Science and Technology, Trondheim, Norway
| | - Grzegorz Tończyk
- Department of Invertebrate Zoology and Hydrobiology, University of Łódź, Łódź, Poland
| | - Lukas Zangl
- Institute of Biology, University of Graz, Graz, Steiermark, Austria.,ÖKOTEAM - Institute for Animal Ecology and Landscape Planning, Graz, Steiermark, Austria.,Universalmuseum Joanneum, Studienzentrum Naturkunde, Graz, Steiermark, Austria
| | - Jerome Moriniere
- AIM - Advanced Identification Methods GmbH, Leipzig, SN, Germany
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6
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Liu JL, Dujsebayeva TN, Chirikova MA, Gong X, Li DJ, Guo XG. Does the Dzungarian racerunner ( Eremias dzungarica Orlova, Poyarkov, Chirikova, Nazarov, Munkhbaatar, Munkhbayar & Terbish, 2017) occur in China? Species delimitation and identification with DNA barcoding and morphometric analyses. Zool Res 2021; 42:287-293. [PMID: 33880891 PMCID: PMC8175952 DOI: 10.24272/j.issn.2095-8137.2020.318] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The Eremias multiocellata-przewalskii species complex is a viviparous group in the genus Eremias, and a well-known representative of taxonomically complicated taxa. Within this complex, a new species - E. dzungarica (Orlova et al., 2017) - has been described recently from western Mongolia and eastern Kazakhstan, with an apparent distribution gap in northwestern China. In this study, we used an integrative taxonomic framework to address whether E. dzungarica indeed occurs in China. Thirty specimens previously classified as E. multiocellata were collected in eastern Kazakhstan and the adjacent Altay region in China. The cytochrome c oxidase I ( COI) barcodes were sequenced and compiled with those from Orlova et al. (2017) and analyzed with the standard and diverse barcoding techniques. We detected an absence of a barcoding gap in this complex, which indicates potential cryptic species in Eremias sp. 3 with high intraspecific diversity and multiple recently evolved species in Clade A. Both BIN and GMYC suggested an unrealistically large number of species (23 and 26, respectively), while ABGD, mPTP and BPP indicated a more conservative number of species (10, 12, and 15, respectively), largely concordant with the previously defined species-level lineages according to phylogenetic trees. Based on molecular phylogeny and morphological examination, all 30 individuals collected in this study were reliably identified as E. dzungarica - a distinct species - confirming the occurrence of this species in the Altay region, Xinjiang, China. Potentially owing to the larger sample size in this study, our morphological analyses revealed many inconsistencies with the original descriptions of E. dzungarica, which were primarily associated with sexual dimorphism and a broader range of values for various traits.
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Affiliation(s)
- Jin-Long Liu
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | | | - Marina A Chirikova
- Institute of Zoology of Republic of Kazakhstan, Almaty 050060, Kazakhstan
| | - Xiong Gong
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Da-Jiang Li
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xian-Guang Guo
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.E-mail:
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7
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Maggioni D, Assandri G, Ramazzotti F, Magnani D, Pellegrino I, Valsecchi E, Galimberti A. Differential genetic variability at two mtDNA COI regions does not imply mismatches in Odonata molecular identification performances. THE EUROPEAN ZOOLOGICAL JOURNAL 2021. [DOI: 10.1080/24750263.2021.1896795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- D. Maggioni
- Department of Environmental and Earth Sciences (DISAT), University of Milano - Bicocca, Milan, Italy
- Marine Research and High Education (MaRHE) Center, University of Milano - Bicocca, Faafu Magoodhoo, Maldives
| | - G. Assandri
- Area Avifauna Migratrice, Istituto Superiore per la Protezione e la Ricerca Ambientale (ISPRA), Ozzano dell’Emilia, Italy
| | - F. Ramazzotti
- ZooPlantLab, Department of Biotechnology and Biosciences, University of Milano - Bicocca, Milan, Italy
| | - D. Magnani
- ZooPlantLab, Department of Biotechnology and Biosciences, University of Milano - Bicocca, Milan, Italy
| | - I. Pellegrino
- Department of Sciences and Technological Innovation (DISIT), University of Eastern Piedmont, Alessandria, Italy
| | - E. Valsecchi
- Department of Environmental and Earth Sciences (DISAT), University of Milano - Bicocca, Milan, Italy
| | - A. Galimberti
- ZooPlantLab, Department of Biotechnology and Biosciences, University of Milano - Bicocca, Milan, Italy
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8
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Molecular phylogenetics of Doraditos (Aves,
Pseudocolopteryx
): Evolution of cryptic species, vocal and mechanical sounds. ZOOL SCR 2020. [DOI: 10.1111/zsc.12467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Rewicz T, Móra A, Tończyk G, Szymczak A, Grabowski M, Calleja EJ, Pernecker B, Csabai Z. First records raise questions: DNA barcoding of Odonata in the middle of the Mediterranean. Genome 2020; 64:196-206. [PMID: 32502367 DOI: 10.1139/gen-2019-0226] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We present the results of the first-ever DNA barcoding study of odonates from the Maltese Islands. In total, 10 morphologically identified species were collected during a two-week long expedition in 2018. Eighty cytochrome c oxidase subunit I (COI) barcodes were obtained from the collected specimens. Intra- and interspecific distances ranged from 0.00% to 2.24% and 0.48% to 17.62%, respectively. Successful species identification based on ascribing a single morphological species to a single Barcode Index Number (BIN) was achieved for eight species (80%). In the case of two species, Ischnura genei and Anax parthenope, BINs were shared with other closely related species. The taxonomic status of I. genei is questionable and the phylogenetic relationship between A. imperator/parthenope is not clear. Further studies involving a series of adult specimens collected in a wide spatial range and nuclear markers are necessary to resolve these cases. Therefore, this dataset serves as an initial DNA barcode reference library for Maltese odonates, within a larger project: Aquatic Macroinvertebrates DNA Barcode Library of Malta.
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Affiliation(s)
- Tomasz Rewicz
- University of Lodz, Department of Invertebrate Zoology and Hydrobiology, Łódź, Poland.,University of Guelph, Centre for Biodiversity Genomics, Guelph, Ontario, Canada
| | - Arnold Móra
- University of Pécs, Department of Hydrobiology, Pécs, Hungary
| | - Grzegorz Tończyk
- University of Lodz, Department of Invertebrate Zoology and Hydrobiology, Łódź, Poland
| | - Ada Szymczak
- University of Lodz, Department of Invertebrate Zoology and Hydrobiology, Łódź, Poland
| | - Michal Grabowski
- University of Lodz, Department of Invertebrate Zoology and Hydrobiology, Łódź, Poland
| | - Eman J Calleja
- Malta College of Arts, Science and Technology, Paola, Malta
| | | | - Zoltán Csabai
- University of Pécs, Department of Hydrobiology, Pécs, Hungary.,Masaryk University, Department of Botany and Zoology, Brno, Czechia
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10
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Integrative study of population structure of Telestes dabar, the strictly endemic cyprinid species from the Dinaric karst on the Balkan Peninsula. EUR J WILDLIFE RES 2019. [DOI: 10.1007/s10344-019-1302-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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Gemmellaro MD, Hamilton GC, Ware JL. Review of Molecular Identification Techniques for Forensically Important Diptera. JOURNAL OF MEDICAL ENTOMOLOGY 2019; 56:887-902. [PMID: 31173634 DOI: 10.1093/jme/tjz040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Indexed: 06/09/2023]
Abstract
The medico-legal section of forensic entomology focuses on the analysis of insects associated with a corpse. Such insects are identified, and their life history characteristics are evaluated to provide information related to the corpse, such as postmortem interval and time of colonization. Forensically important insects are commonly identified using dichotomous keys, which rely on morphological characteristics. Morphological identifications can pose a challenge as local keys are not always available and can be difficult to use, especially when identifying juvenile stages. If a specimen is damaged, certain keys cannot be used for identification. In contrast, molecular identification can be a better instrument to identify forensically important insects, regardless of life stage or specimen completeness. Despite more than 20 yr since the first use of molecular data for the identification of forensic insects, there is little overlap in gene selection or phylogenetic methodology among studies, and this inconsistency reduces efficiency. Several methods such as genetic distance, reciprocal monophyly, or character-based methods have been implemented in forensic identification studies. It can be difficult to compare the results of studies that employ these different methods. Here we present a comprehensive review of the published results for the molecular identification of Diptera of forensic interest, with an emphasis on evaluating variation among studies in gene selection and phylogenetic methodology.
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Affiliation(s)
| | | | - Jessica L Ware
- Department of Entomology, Rutgers University, New Brunswick, NJ
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12
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He T, Jiao L, Wiedenhoeft AC, Yin Y. Machine learning approaches outperform distance- and tree-based methods for DNA barcoding of Pterocarpus wood. PLANTA 2019; 249:1617-1625. [PMID: 30825008 DOI: 10.1007/s00425-019-03116-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 02/20/2019] [Indexed: 05/10/2023]
Abstract
Machine-learning approaches (MLAs) for DNA barcoding outperform distance- and tree-based methods on identification accuracy and cost-effectiveness to arrive at species-level identification of wood. DNA barcoding is a promising tool to combat illegal logging and associated trade, and the development of reliable and efficient analytical methods is essential for its extensive application in the trade of wood and in the forensics of natural materials more broadly. In this study, 120 DNA sequences of four barcodes (ITS2, matK, ndhF-rpl32, and rbcL) generated in our previous study and 85 downloaded from National Center for Biotechnology Information (NCBI) were collected to establish a reference data set for six commercial Pterocarpus woods. MLAs (BLOG, BP-neural network, SMO and J48) were compared with distance- (TaxonDNA) and tree-based (NJ tree) methods based on identification accuracy and cost-effectiveness across these six species, and also were applied to discriminate the CITES-listed species Pterocarpus santalinus from its anatomically similar species P. tinctorius for forensic identification. MLAs provided higher identification accuracy (30.8-100%) than distance- (15.1-97.4%) and tree-based methods (11.1-87.5%), with SMO performing the best among the machine learning classifiers. The two-locus combination ITS2 + matK when using SMO classifier exhibited the highest resolution (100%) with the fewest barcodes for discriminating the six Pterocarpus species. The CITES-listed species P. santalinus was discriminated successfully from P. tinctorius using MLAs with a single barcode, ndhF-rpl32. This study shows that MLAs provided higher identification accuracy and cost-effectiveness for forensic application over other analytical methods in DNA barcoding of Pterocarpus wood.
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Affiliation(s)
- Tuo He
- Department of Wood Anatomy and Utilization, Chinese Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing, 100091, China
- Wood Collections (WOODPEDIA), Chinese Academy of Forestry, Beijing, 100091, China
- Forest Products Laboratory, Center for Wood Anatomy Research, USDA Forest Service, Madison, WI, 53726, USA
- Department of Botany, University of Wisconsin, Madison, WI, 53706, USA
| | - Lichao Jiao
- Department of Wood Anatomy and Utilization, Chinese Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing, 100091, China
- Wood Collections (WOODPEDIA), Chinese Academy of Forestry, Beijing, 100091, China
| | - Alex C Wiedenhoeft
- Forest Products Laboratory, Center for Wood Anatomy Research, USDA Forest Service, Madison, WI, 53726, USA
- Department of Botany, University of Wisconsin, Madison, WI, 53706, USA
- Department of Forestry and National Resources, Purdue University, West Lafayette, IN, 47907, USA
- Ciências Biológicas (Botânica), Univesidade Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Yafang Yin
- Department of Wood Anatomy and Utilization, Chinese Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing, 100091, China.
- Wood Collections (WOODPEDIA), Chinese Academy of Forestry, Beijing, 100091, China.
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Dalstein V, Eberle J, Fabrizi S, Etzbauer C, Ahrens D. COI-based species delimitation in Indochinese Tetraserica chafers reveal hybridisation despite strong divergence in male copulation organs. ORG DIVERS EVOL 2019. [DOI: 10.1007/s13127-019-00398-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Islam SU, Qasim M, Ali H, Islam W, Arif M, Dash CK, Lin W, Du Z, Wu Z. Genetic diversity of the families Aeshnidae, Gomphidae and Libellulidae through COI gene from South China. Acta Trop 2018; 185:273-279. [PMID: 29890154 DOI: 10.1016/j.actatropica.2018.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/03/2018] [Accepted: 06/07/2018] [Indexed: 11/30/2022]
Abstract
Adult dragonflies (Anisoptera) were collected from different localities of South China covering eight provinces. Representative sequences were sixty-one, including 16 species, 11 genera and three families (Aeshnidae, Gomphidae and Libellulidae), under cytochrome oxidase subunit I (COI) gene. After alignment of sequences by BioEdit v6, genetic interaction and divergence were computed by MEGA 7 whereas all the indices of genetic diversity were calculated by DnaSP v5 software. Phylogenetic trees were constructed through Neighbor-Joining method under Jukes-Cantor model, and all species of respective families were assembled with each other into individual groups. Maximum divergence was observed by Trithemis genus (18.69%), followed by Orthetrum genus (18.16%), whereas a minimum value of divergence was noted for Pantala genus (0.31%). On the other hand, maximum genetic diversity was recorded for Orthetrum genus up to 142 mutations, followed by Trithemis genus (126 mutations), while the minimum value (two mutations) was observed for Pantala genus. Genetic diversity for overall and Libellulidae family sequences was much higher, up to 404 mutations and 344 mutations, respectively. Current results suggest a high diversity of odonates in the South China region and results are valuable in gaining a total obligation of the diversity of Asian odonates and conservation measures of this insect group.
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Affiliation(s)
- Saif Ul Islam
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou, China; Fujian Province Key Laboratory of Plant Virology, Plant Protection College, Fujian Agriculture and Forestry University, Fuzhou, China; College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Muhammad Qasim
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou, China; College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Habib Ali
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou, China; College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Waqar Islam
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou, China; Fujian Province Key Laboratory of Plant Virology, Plant Protection College, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Muhammad Arif
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou, China; Fujian Province Key Laboratory of Plant Virology, Plant Protection College, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Chandra Kanta Dash
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou, China; College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Faculty of Agriculture, Sylhet Agricultural University, Bangladesh
| | - Wenzhong Lin
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou, China
| | - Zhenguo Du
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou, China; Fujian Province Key Laboratory of Plant Virology, Plant Protection College, Fujian Agriculture and Forestry University, Fuzhou, China; College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Zujian Wu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou, China; Fujian Province Key Laboratory of Plant Virology, Plant Protection College, Fujian Agriculture and Forestry University, Fuzhou, China; College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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Islam SU, Qasim M, Lin W, Islam W, Arif M, Ali H, Du Z, Wu Z. Genetic interaction and diversity of the families Libellulidae and Gomphidae through COI gene from China and Pakistan. Acta Trop 2018; 182:92-99. [PMID: 29454732 DOI: 10.1016/j.actatropica.2018.02.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 02/12/2018] [Accepted: 02/12/2018] [Indexed: 10/18/2022]
Abstract
A total of 300 dragonflies (Odonata) were collected from six different localities of China and Pakistan. Sixty seven representative samples were selected to sequence their mitochondrial cytochrome oxidase subunit I (COI). An examination of the resultant sequences identified 21 different dragonfly species, belonging to 15 distinct genera, two families, Libellulidae and Gomphidae. Sequence alignment was executed using Clustal-W in BioEdit v6. The phylogenetic tree was constructed through Neighbor-joining method by using Jukes-Cantor model, and genetic divergence was calculated via Kimura 2-parameter using MEGA7, while Genetic diversity was calculated by DnaSP v5. The maximum genetic divergence was observed for Crocothemis servilia, at 20.49%, followed by Libellulidae sp. with 22.30% while minimum divergence (0.82%) was observed for Melligomphus ardens. Likewise, a significant genetic diversity was observed for all species. However, Crocothemis servilia species presented maximum value (176 mutations) followed by Libellulidae spp. (150 mutations), whereas minimum value (3 mutations) was observed by Orthetrum testaceum. Interestingly, the diversity of C. servilia, all of which are collected from a single location of China, is much higher than those from Pakistan, which were collected from 5 different places with a spatial distance exceeding 500 Kms. Our results are useful in gaining a full appreciation of the global diversity of dragonflies and the development of conservation measures of this insect.
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Finding Evolutionary Processes Hidden in Cryptic Species. Trends Ecol Evol 2018; 33:153-163. [DOI: 10.1016/j.tree.2017.11.007] [Citation(s) in RCA: 217] [Impact Index Per Article: 36.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 11/15/2017] [Accepted: 11/20/2017] [Indexed: 12/18/2022]
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Weigand H, Weiss M, Cai H, Li Y, Yu L, Zhang C, Leese F. Deciphering the origin of mito-nuclear discordance in two sibling caddisfly species. Mol Ecol 2017; 26:5705-5715. [PMID: 28792677 DOI: 10.1111/mec.14292] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 07/20/2017] [Accepted: 08/03/2017] [Indexed: 01/15/2023]
Abstract
An increasing number of phylogenetic studies have reported discordances among nuclear and mitochondrial markers. These discrepancies are highly relevant to widely used biodiversity assessment approaches, such as DNA barcoding, that rely almost exclusively on mitochondrial markers. Although the theoretical causes of mito-nuclear discordances are well understood, it is often extremely challenging to determine the principal underlying factor in a given study system. In this study, we uncovered significant mito-nuclear discordances in a pair of sibling caddisfly species. Application of genome sequencing, ddRAD and DNA barcoding revealed ongoing hybridization, as well as historical hybridization in Pleistocene refugia, leading us to identify introgression as the ultimate cause of the observed discordance pattern. Our novel genomic data, the discovery of a European-wide hybrid zone and the availability of established techniques for laboratory breeding make this species pair an ideal model system for studying species boundaries with ongoing gene flow.
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Affiliation(s)
- Hannah Weigand
- Aquatic Ecosystem Research, University of Duisburg-Essen, Essen, Germany
| | - Martina Weiss
- Aquatic Ecosystem Research, University of Duisburg-Essen, Essen, Germany
| | - Huimin Cai
- BGI-Shenzhen, Shenzhen, China.,Department of Computer Science, City University of Hong Kong, Hong Kong, China
| | | | - Lili Yu
- BGI-Shenzhen, Shenzhen, China
| | | | - Florian Leese
- Aquatic Ecosystem Research, University of Duisburg-Essen, Essen, Germany
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Koroiva R, Kvist S. Estimating the barcoding gap in a global dataset of cox1 sequences for Odonata: close, but no cigar. Mitochondrial DNA A DNA Mapp Seq Anal 2017; 29:765-771. [PMID: 28752773 DOI: 10.1080/24701394.2017.1357709] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
We evaluated the extent of intraspecific and interspecific genetic distances for two highly diverse infraorders of Odonata: Anisoptera and Zygoptera. All cytochrome c oxidase subunit I sequences (cox1), the region chosen for zoological DNA barcoding, present in GenBank for each infraorder were downloaded and curated. For Anisoptera, the final dataset consisted of 2,961 individual cox1 sequences for 536 species and the equivalent numbers for Zygoptera were 2,477 sequences for 497 species. More than 7 million individual genetic comparisons were made and the results indicated that there is a tendency towards a barcoding gap, but that the size of the gap may not be sufficient to robustly infer identities for some taxa. DNA barcoding may be of less use for some odonate taxa, perhaps pertaining to misidentifications in global databases. However, at local scales or with more confined taxonomical sampling, this tool may yet be beneficial in identifying these charismatic organisms.
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Affiliation(s)
- Ricardo Koroiva
- a Ecology and Conservation Graduate Program , Universidade Federal de Mato Grosso do Sul , Campo Grande , Mato Grosso do Sul , Brazil.,b Laboratório de Ecologia, Universidade Federal de Mato Grosso do Sul, Cidade Universitária s/n , Campo Grande , Mato Grosso do Sul , Brazil
| | - Sebastian Kvist
- c Department of Natural History , Royal Ontario Museum , Toronto , ON , Canada.,d Department of Ecology and Evolutionary Biology , University of Toronto , Toronto , ON , Canada
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19
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Sheth BP, Thaker VS. DNA barcoding and traditional taxonomy: an integrated approach for biodiversity conservation. Genome 2017; 60:618-628. [DOI: 10.1139/gen-2015-0167] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Biological diversity is depleting at an alarming rate. Additionally, a vast amount of biodiversity still remains undiscovered. Taxonomy has been serving the purpose of describing, naming, and classifying species for more than 250 years. DNA taxonomy and barcoding have accelerated the rate of this process, thereby providing a tool for conservation practice. DNA barcoding and traditional taxonomy have their own inherent merits and demerits. The synergistic use of both methods, in the form of integrative taxonomy, has the potential to contribute to biodiversity conservation in a pragmatic timeframe and overcome their individual drawbacks. In this review, we discuss the basics of both these methods of biological identification (traditional taxonomy and DNA barcoding), the technical advances in integrative taxonomy, and future trends. We also present a comprehensive compilation of published examples of integrative taxonomy that refer to nine topics within biodiversity conservation. Morphological and molecular species limits were observed to be congruent in ∼41% of the 58 source studies. The majority of the studies highlighted the description of cryptic diversity through the use of molecular data, whereas research areas like endemism, biological invasion, and threatened species were less discussed in the literature.
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Affiliation(s)
- Bhavisha P. Sheth
- Centre for Advanced Studies in Plant Biotechnology and Genetic Engineering, Department of Biosciences, Saurashtra University, Rajkot 360005, Gujarat, India
- Centre for Advanced Studies in Plant Biotechnology and Genetic Engineering, Department of Biosciences, Saurashtra University, Rajkot 360005, Gujarat, India
| | - Vrinda S. Thaker
- Centre for Advanced Studies in Plant Biotechnology and Genetic Engineering, Department of Biosciences, Saurashtra University, Rajkot 360005, Gujarat, India
- Centre for Advanced Studies in Plant Biotechnology and Genetic Engineering, Department of Biosciences, Saurashtra University, Rajkot 360005, Gujarat, India
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20
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Casas PAS, Sing KW, Lee PS, Nuñeza OM, Villanueva RJT, Wilson JJ. DNA barcodes for dragonflies and damselflies (Odonata) of Mindanao, Philippines. Mitochondrial DNA A DNA Mapp Seq Anal 2017; 29:206-211. [DOI: 10.1080/24701394.2016.1267157] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Princess Angelie S. Casas
- Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan City, Philippines
| | - Kong-Wah Sing
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ping-Shin Lee
- Department of Applied Sciences, Faculty of Science and Technology, Nilai University, Persiaran Universiti, Putra Nilai, Nilai, Negeri Sembilan, Malaysia
| | - Olga M. Nuñeza
- Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan City, Philippines
| | | | - John-James Wilson
- International College Beijing, China Agricultural University, Beijing, P. R. China
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21
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Pleistocene demographic expansion and high gene flow in the Globe Skimmer dragonfly Pantala flavescens Fabricius (Odonata: Libellulidae) in Peninsular Malaysia. ZOOL ANZ 2017. [DOI: 10.1016/j.jcz.2016.10.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Wang Y, Zhou QS, Qiao HJ, Zhang AB, Yu F, Wang XB, Zhu CD, Zhang YZ. Formal nomenclature and description of cryptic species of the Encyrtus sasakii complex (Hymenoptera: Encyrtidae). Sci Rep 2016; 6:34372. [PMID: 27698441 PMCID: PMC5048151 DOI: 10.1038/srep34372] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 09/12/2016] [Indexed: 02/04/2023] Open
Abstract
With the recent development of molecular approaches to species delimitation, a growing number of cryptic species have been discovered in what had previously been thought to be single morpho-species. Molecular methods, such as DNA barcoding, have greatly enhanced our knowledge of taxonomy, but taxonomy remains incomplete and needs a formal species nomenclature and description to facilitate its use in other scientific fields. A previous study using DNA barcoding, geometric morphometrics and mating tests revealed at least two cryptic species in the Encyrtus sasakii complex. (Hymenoptera: Encyrtidae). To describe these two new species formally (Encyrtus eulecaniumiae sp. nov. and Encyrtus rhodococcusiae sp. nov.), a detailed morphometric study of Encyrtus spp. was performed in addition to the molecular analysis and evaluation of biological data. Morphometric analyses, a multivariate ratio analysis (MRA) and a geometric morphometric analysis (GMA) revealed a great number of differences between the species, but reliable characteristics were not observed for diagnosing the cryptic species. We thus diagnosed these three Encyrtus species on the basis of the characteristics that resulted from genetic markers (mitochondrial cytochrome c oxidase subunit I and nuclear 28S rRNA) and biological data. A formal nomenclature and description of cryptic species was provided on the basis of an integrated taxonomy.
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Affiliation(s)
- Ying Wang
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Qing-Song Zhou
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences (UCAS), No. 19A Yuquan Road, Beijing 100049, China
| | - Hui-Jie Qiao
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Ai-Bing Zhang
- College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Fang Yu
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences (UCAS), No. 19A Yuquan Road, Beijing 100049, China
| | - Xu-Bo Wang
- Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China
| | - Chao-Dong Zhu
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences (UCAS), No. 19A Yuquan Road, Beijing 100049, China
| | - Yan-Zhou Zhang
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences (UCAS), No. 19A Yuquan Road, Beijing 100049, China
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Zou S, Li Q. Pay Attention to the Overlooked Cryptic Diversity in Existing Barcoding Data: the Case of Mollusca with Character-Based DNA Barcoding. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2016; 18:327-335. [PMID: 26899167 DOI: 10.1007/s10126-016-9692-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 01/28/2016] [Indexed: 06/05/2023]
Abstract
With the global biodiversity crisis, DNA barcoding aims for fast species identification and cryptic species diversity revelation. For more than 10 years, large amounts of DNA barcode data have been accumulating in publicly available databases, most of which were conducted by distance or tree-building methods that have often been argued, especially for cryptic species revelation. In this context, overlooked cryptic diversity may exist in the available barcoding data. The character-based DNA barcoding, however, has a good chance for detecting the overlooked cryptic diversity. In this study, marine mollusk was as the ideal case for detecting the overlooked potential cryptic species from existing cytochrome c oxidase I (COI) sequences with character-based DNA barcode. A total of 1081 COI sequences of mollusks, belonging to 176 species of 25 families of Gastropoda, Cephalopoda, and Lamellibranchia, were conducted by character analysis. As a whole, the character-based barcoding results were consistent with previous distance and tree-building analysis for species discrimination. More importantly, quite a number of species analyzed were divided into distinct clades with unique diagnostical characters. Based on the concept of cryptic species revelation of character-based barcoding, these species divided into separate taxonomic groups might be potential cryptic species. The detection of the overlooked potential cryptic diversity proves that the character-based barcoding mode possesses more advantages of revealing cryptic biodiversity. With the development of DNA barcoding, making the best use of barcoding data is worthy of our attention for species conservation.
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Affiliation(s)
- Shanmei Zou
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing, 210095, China
| | - Qi Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China.
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Sundberg P, Kvist S, Strand M. Evaluating the Utility of Single-Locus DNA Barcoding for the Identification of Ribbon Worms (Phylum Nemertea). PLoS One 2016; 11:e0155541. [PMID: 27171471 PMCID: PMC4865114 DOI: 10.1371/journal.pone.0155541] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Accepted: 04/29/2016] [Indexed: 11/22/2022] Open
Abstract
Whereas many nemerteans (ribbon worms; phylum Nemertea) can be identified from external characters if observed alive, many are still problematic. When it comes to preserved specimens (as in e.g. marine inventories), there is a particular need for specimen identifier alternatives. Here, we evaluate the utility of COI (cytochrome c oxidase subunit I) as a single-locus barcoding gene. We sequenced, data mined, and compared gene fragments of COI for 915 individuals representing 161 unique taxonomic labels for 71 genera, and subjected different constellations of these to both distance-based and character-based DNA barcoding approaches, as well as species delimitation analyses. We searched for the presence or absence of a barcoding gap at different taxonomic levels (phylum, subclass, family and genus) in an attempt to understand at what level a putative barcoding gap presents itself. This was performed both using the taxonomic labels as species predictors and using objectively inferred species boundaries recovered from our species delimitation analyses. Our data suggest that COI works as a species identifier for most groups within the phylum, but also that COI data are obscured by misidentifications in sequence databases. Further, our results suggest that the number of predicted species within the dataset is (in some cases substantially) higher than the number of unique taxonomic labels-this highlights the presence of several cryptic lineages within well-established taxa and underscores the urgency of an updated taxonomic backbone for the phylum.
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Affiliation(s)
- Per Sundberg
- Department of Marine Science, University of Gothenburg, Box 463, SE-405 30, Gothenburg, Sweden
| | - Sebastian Kvist
- Department of Natural History, Royal Ontario Museum, 100 Queen’s Park, Toronto, ON, M5S 2C6, Canada
- Department of Ecology and Evolutionary Biology, University of Toronto, 25 Willcocks Street, Toronto, ON, M5S 2B4, Canada
| | - Malin Strand
- Swedish Species Information Center, Swedish University of Agricultural Sciences, SE-75007, Uppsala, Sweden
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25
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Zou S, Fei C, Song J, Bao Y, He M, Wang C. Combining and Comparing Coalescent, Distance and Character-Based Approaches for Barcoding Microalgaes: A Test with Chlorella-Like Species (Chlorophyta). PLoS One 2016; 11:e0153833. [PMID: 27092945 PMCID: PMC4841637 DOI: 10.1371/journal.pone.0153833] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 03/13/2016] [Indexed: 01/19/2023] Open
Abstract
Several different barcoding methods of distinguishing species have been advanced, but which method is the best is still controversial. Chlorella is becoming particularly promising in the development of second-generation biofuels. However, the taxonomy of Chlorella-like organisms is easily confused. Here we report a comprehensive barcoding analysis of Chlorella-like species from Chlorella, Chloroidium, Dictyosphaerium and Actinastrum based on rbcL, ITS, tufA and 16S sequences to test the efficiency of traditional barcoding, GMYC, ABGD, PTP, P ID and character-based barcoding methods. First of all, the barcoding results gave new insights into the taxonomic assessment of Chlorella-like organisms studied, including the clear species discrimination and resolution of potentially cryptic species complexes in C. sorokiniana, D. ehrenbergianum and C. Vulgaris. The tufA proved to be the most efficient barcoding locus, which thus could be as potential "specific barcode" for Chlorella-like species. The 16S failed in discriminating most closely related species. The resolution of GMYC, PTP, P ID, ABGD and character-based barcoding methods were variable among rbcL, ITS and tufA genes. The best resolution for species differentiation appeared in tufA analysis where GMYC, PTP, ABGD and character-based approaches produced consistent groups while the PTP method over-split the taxa. The character analysis of rbcL, ITS and tufA sequences could clearly distinguish all taxonomic groups respectively, including the potentially cryptic lineages, with many character attributes. Thus, the character-based barcoding provides an attractive complement to coalescent and distance-based barcoding. Our study represents the test that proves the efficiency of multiple DNA barcoding in species discrimination of microalgaes.
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Affiliation(s)
- Shanmei Zou
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Cong Fei
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Jiameng Song
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yachao Bao
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Meilin He
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Changhai Wang
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing 210095, PR China
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Millanes AM, Diederich P, Wedin M. Cyphobasidium gen. nov., a new lichen-inhabiting lineage in the Cystobasidiomycetes (Pucciniomycotina, Basidiomycota, Fungi). Fungal Biol 2015; 120:1468-1477. [PMID: 27742100 DOI: 10.1016/j.funbio.2015.12.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 10/30/2015] [Accepted: 12/14/2015] [Indexed: 01/30/2023]
Abstract
Pucciniomycotina is a highly diverse group of fungi, showing a remarkably wide range of lifestyles and ecologies. However, lichen-inhabiting fungi are only represented by a few species included in the genera Chionosphaera and Cystobasidium, and their phylogenetic position has never been investigated. Phylogenetic analyses using the nuclear SSU, ITS, and LSU ribosomal DNA markers reveal that the lichenicolous members of Cystobasidium (C. hypogymniicola, C. usneicola) form a monophyletic group distinct from Cystobasidium and outside the Cystobasidiales. The new genus Cyphobasidium is consequently described to accommodate these lichen-inhabiting species. Cyphobasidium is characterized by producing conspicuous galls on the host lichen thalli, by having distinctive basidia that arise from a thick-walled, cup-like structure, the probasidium, that persists after the senescence of the actual basidium (meiosporangium), and by its lichenicolous occurrence on species of Hypogymnia and Usnea. Cyphobasidium is one of the few representatives of the Cystobasidiomycetes in which the sexual stage predominates in nature, whereas most species in the group are known only from an asexual yeast phase. This is the first time the position of lichen-inhabiting taxa within the Pucciniomycotina is investigated using molecular data.
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Affiliation(s)
- Ana M Millanes
- Universidad Rey Juan Carlos, Departmento de Biología y Geología, Física y Química Inorgánica, E-28933 Móstoles, Spain.
| | - Paul Diederich
- Musée national d'histoire naturelle, 25 rue Munster, L-2160 Luxembourg, Luxembourg
| | - Mats Wedin
- Swedish Museum of Natural History, Department of Botany, P.O. Box 50007, SE-104 05 Stockholm, Sweden
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Kergoat GJ, Toussaint EFA, Capdevielle-Dulac C, Clamens AL, Ong'amo G, Conlong D, van Den Berg J, Cugala D, Pallangyo B, Mubenga O, Chipabika G, Ndemah R, Sezonlin M, Bani G, Molo R, Ali A, Calatayud PA, Kaiser L, Silvain JF, Le Ru B. Integrative taxonomy reveals six new species related to the Mediterranean corn stalk borerSesamia nonagrioides(Lefèbvre) (Lepidoptera, Noctuidae, Sesamiina). Zool J Linn Soc 2015. [DOI: 10.1111/zoj.12275] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gael J. Kergoat
- INRA - UMR 1062 CBGP (INRA, IRD, CIRAD, Montpellier SupAgro); 755 Avenue du campus Agropolis 34988 Montferrier/Lez France
| | | | - Claire Capdevielle-Dulac
- IRD/CNRS, Laboratoire Evolution Génomes et Spéciation; Avenue de la terrasse BP 1, 91198 Gif-sur-Yvette cedex France
- Université Paris-Sud 11; 91405 Orsay France
| | - Anne-Laure Clamens
- INRA - UMR 1062 CBGP (INRA, IRD, CIRAD, Montpellier SupAgro); 755 Avenue du campus Agropolis 34988 Montferrier/Lez France
| | - George Ong'amo
- School of Biological Science, College of Physical and Biological Sciences (Chiromo Campus); University of Nairobi; Nairobi Kenya
| | - Desmond Conlong
- South African Sugarcane Research Institute; Private Bag X02 Mount Edgecombe 4300 South Africa
- School of Biological and Conservation Sciences; University of KwaZulu-Natal; Private Bag X01 - Scottsville Pietermaritzburg Republic of South Africa
| | - Johnnie van Den Berg
- School of Environmental Sciences and Development; North West University (Potchefstroom Campus); Private Bag X6001 Potchefstroom 2520 Republic of South Africa
| | - Domingos Cugala
- Faculty of Agronomy and Forestry Engineering; Eduardo Mondlane University; Av. J. Nyerere, Campus Universitario 1 Maputo Republic of Mozambique
| | | | - Onesime Mubenga
- Faculté des Sciences agronomiques; Université de Kisangani; Kisangani Democratic Republic of the Congo
| | - Gilson Chipabika
- Zambia Agriculture Research Institute; Mount Maluku Central Research Station; PO Box 8 Chilanga Zambia
| | - Rose Ndemah
- International Institute of Tropical Agriculture; PO Box 2008 - Messa Yaoundé Cameroon
| | - Michel Sezonlin
- Département de Zoologie et de Génétique; Faculté des Sciences et Techniques; Université d'Abomey-Calavi; 01 BP 526 Cotonou Bénin
| | - Gregoire Bani
- Centre de Recherches Agronomiques de Loudima (CRAL); BP 28 Loudima Republic of the Congo
| | - Richard Molo
- Namulonge Agricultural and Animal Production Research Institute (NAARI); PO Box 7084 Kampala Uganda
| | - Abdalla Ali
- Plant Protection Division; PO Box 1062 Zanzibar Tanzania
| | - Paul-Andre Calatayud
- IRD/CNRS, Laboratoire Evolution Génomes et Spéciation; Avenue de la terrasse BP 1, 91198 Gif-sur-Yvette cedex France
- Université Paris-Sud 11; 91405 Orsay France
- Unité de Recherche IRD 072; African Insect Science for Food and Health (icipe); PO Box 30772 Nairobi Kenya
| | - Laure Kaiser
- IRD/CNRS, Laboratoire Evolution Génomes et Spéciation; Avenue de la terrasse BP 1, 91198 Gif-sur-Yvette cedex France
- Université Paris-Sud 11; 91405 Orsay France
| | - Jean-Francois Silvain
- IRD/CNRS, Laboratoire Evolution Génomes et Spéciation; Avenue de la terrasse BP 1, 91198 Gif-sur-Yvette cedex France
- Université Paris-Sud 11; 91405 Orsay France
| | - Bruno Le Ru
- IRD/CNRS, Laboratoire Evolution Génomes et Spéciation; Avenue de la terrasse BP 1, 91198 Gif-sur-Yvette cedex France
- Université Paris-Sud 11; 91405 Orsay France
- Unité de Recherche IRD 072; African Insect Science for Food and Health (icipe); PO Box 30772 Nairobi Kenya
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Pocco ME, Minutolo C, Dinghi PA, Lange CE, Confalonieri VA, Cigliano MM. Species delimitation in the Andean grasshopper genusOrotettix Ronderos & Carbonell (Orthoptera: Melanoplinae): an integrative approach combining morphological, molecular and biogeographical data. Zool J Linn Soc 2015. [DOI: 10.1111/zoj.12251] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Martina E. Pocco
- División Entomología; Museo de La Plata; Universidad Nacional de La Plata; La Plata Argentina
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE); CCT La Plata; CONICET; La Plata Argentina
| | - Carolina Minutolo
- Departamento de Ecología, Genética y Evolución; Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires; Buenos Aires Argentina
| | - Pablo A. Dinghi
- Departamento de Ecología, Genética y Evolución; Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires; Buenos Aires Argentina
| | - Carlos E. Lange
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE); CCT La Plata; CONICET; La Plata Argentina
- Comisión de Investigaciones Científicas; Ministerio de Producción; Ciencia y Tecnología; Provincia de Buenos Aires (CICPBA) Argentina
| | - Viviana A. Confalonieri
- Departamento de Ecología, Genética y Evolución; Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires; Buenos Aires Argentina
| | - María Marta Cigliano
- División Entomología; Museo de La Plata; Universidad Nacional de La Plata; La Plata Argentina
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE); CCT La Plata; CONICET; La Plata Argentina
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Paknia O, Bergmann T, Hadrys H. Some ‘ant’swers: Application of a layered barcode approach to problems in ant taxonomy. Mol Ecol Resour 2015; 15:1262-74. [DOI: 10.1111/1755-0998.12395] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 02/03/2015] [Accepted: 02/18/2015] [Indexed: 11/26/2022]
Affiliation(s)
- Omid Paknia
- Institut für Tierökologie und Zellbiologie; Stiftung Tierärztliche Hochschule Hannover; Hannover Germany
| | - Tjard Bergmann
- Institut für Tierökologie und Zellbiologie; Stiftung Tierärztliche Hochschule Hannover; Hannover Germany
| | - Heike Hadrys
- Institut für Tierökologie und Zellbiologie; Stiftung Tierärztliche Hochschule Hannover; Hannover Germany
- EEB; Yale University; New Haven Connecticut 06511 USA
- Sackler Institute for Comparative Genomics; American Museum of Natural History; New York New York 10024 USA
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30
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Katz AD, Giordano R, Soto-Adames FN. Operational criteria for cryptic species delimitation when evidence is limited, as exemplified by North AmericanEntomobrya(Collembola: Entomobryidae). Zool J Linn Soc 2015. [DOI: 10.1111/zoj.12220] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aron D. Katz
- Department of Entomology; University of Illinois; 320 Morrill Hall 505 South Goodwin Avenue Urbana IL 61801 USA
- Illinois Natural History Survey; University of Illinois; 1816 South Oak Street Champaign IL 61820 USA
| | - Rosanna Giordano
- Department of Entomology; University of Illinois; 320 Morrill Hall 505 South Goodwin Avenue Urbana IL 61801 USA
| | - Felipe N. Soto-Adames
- Illinois Natural History Survey; University of Illinois; 1816 South Oak Street Champaign IL 61820 USA
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31
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Yang M, Wei C. New species of the cicada genus Semia Matsumura (Hemiptera: Cicadidae) from China and a phylogeny of Semia spp. and their relatives based on molecular data. J NAT HIST 2014. [DOI: 10.1080/00222933.2014.908975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Mingsheng Yang
- Key Laboratory of Plant Protection Resources and Pest Management, Ministry of Education, Entomological Museum, Northwest A&F University, Yangling, China
| | - Cong Wei
- Key Laboratory of Plant Protection Resources and Pest Management, Ministry of Education, Entomological Museum, Northwest A&F University, Yangling, China
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32
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Dávalos LM, Russell AL. Sex-biased dispersal produces high error rates in mitochondrial distance-based and tree-based species delimitation. J Mammal 2014. [DOI: 10.1644/14-mamm-a-107] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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33
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Khedkar GD, Jamdade R, Naik S, David L, Haymer D. DNA barcodes for the fishes of the Narmada, one of India's longest rivers. PLoS One 2014; 9:e101460. [PMID: 24991801 PMCID: PMC4081587 DOI: 10.1371/journal.pone.0101460] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 06/06/2014] [Indexed: 01/12/2023] Open
Abstract
This study describes the species diversity of fishes of the Narmada River in India. A total of 820 fish specimens were collected from 17 sampling locations across the whole river basin. Fish were taxonomically classified into one of 90 possible species based on morphological characters, and then DNA barcoding was employed using COI gene sequences as a supplemental identification method. A total of 314 different COI sequences were generated, and specimens were confirmed to belong to 85 species representing 63 genera, 34 families and 10 orders. Findings of this study include the identification of five putative cryptic or sibling species and 43 species not previously known from the Narmada River basin. Five species are endemic to India and three are introduced species that had not been previously reported to occur in the Narmada River. Conversely, 43 species previously reported to occur in the Narmada were not found. Genetic diversity and distance values were generated for all of the species within genera, families and orders using Kimura's 2 parameter distance model followed by the construction of a Neighbor Joining tree. High resolution clusters generated in NJ trees aided the groupings of species corresponding to their genera and families which are in confirmation to the values generated by Automatic Barcode Gap Discovery bioinformatics platform. This aided to decide a threshold value for the discrimination of species boundary from the Narmada River. This study provides an important validation of the use of DNA barcode sequences for monitoring species diversity and changes within complex ecosystems such as the Narmada River.
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Affiliation(s)
- Gulab Dattarao Khedkar
- Paul Hebert Centre for DNA Barcoding and Biodiversity Studies, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India
| | - Rahul Jamdade
- Paul Hebert Centre for DNA Barcoding and Biodiversity Studies, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India
| | - Suresh Naik
- Biodiversity Institute of Ontario, University of Guelph, Guelph, Ontario, Canada
| | - Lior David
- Department of Animal Sciences, R.H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - David Haymer
- Department of Cell and Molecular Biology, University of Hawaii, Honolulu, Hawaii, United States of America
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Yong HS, Lim PE, Tan J, Ng YF, Eamsobhana P, Suana IW. Molecular phylogeny of Orthetrum dragonflies reveals cryptic species of Orthetrum pruinosum. Sci Rep 2014; 4:5553. [PMID: 24989852 PMCID: PMC5381552 DOI: 10.1038/srep05553] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 06/13/2014] [Indexed: 11/10/2022] Open
Abstract
Dragonflies of the genus Orthetrum are members of the suborder Anisoptera, family Libellulidae. There are species pairs whose members are not easily separated from each other by morphological characters. In the present study, the DNA nucleotide sequences of mitochondrial and nuclear genes were employed to elucidate the phylogeny and systematics of Orthetrum dragonflies. Phylogenetic analyses could not resolve the various subfamilies of the family Libellulidae unequivocally. The nuclear 28S rRNA gene is highly conserved and could not resolve congeneric species of Orthetrum. Individual mitochondrial genes (COI, COII, and 16S rRNA) and combination of these genes as well as the nuclear ITS1&2 genes clearly differentiate morphologically similar species, such as the reddish species pairs O. chrysis and O. testaceum, and the bluish-coloured species O. glaucum and O. luzonicum. This study also reveals distinct genetic lineages between O. pruinosum schneideri (occurring in Malaysia) and O. pruinosum neglectum (occurring north of Peninsular Malaysia from India to Japan), indicating these taxa are cryptic species.
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Affiliation(s)
- Hoi Sen Yong
- Institute of Biological Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Phaik-Eem Lim
- Institute of Biological Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
- Institute of Ocean and Earth Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Ji Tan
- Institute of Biological Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
- Institute of Ocean and Earth Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Yong Foo Ng
- Centre for Insect Systematics, School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43000 Bangi, Selangor D.E., Malaysia
| | - Praphathip Eamsobhana
- Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - I. Wayan Suana
- Faculty of Science and Mathematics, Mataram University, Mataram, Indonesia
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35
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Millanes AM, Truong C, Westberg M, Diederich P, Wedin M. Host switching promotes diversity in host-specialized mycoparasitic fungi: uncoupled evolution in the Biatoropsis-usnea system. Evolution 2014; 68:1576-93. [PMID: 24495034 DOI: 10.1111/evo.12374] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Accepted: 01/24/2014] [Indexed: 12/15/2022]
Abstract
Fungal mycoparasitism-fungi parasitizing other fungi-is a common lifestyle in some basal lineages of the basidiomycetes, particularly within the Tremellales. Relatively nonaggressive mycoparasitic fungi of this group are in general highly host specific, suggesting cospeciation as a plausible speciation mode in these associations. Species delimitation in the Tremellales is often challenging because morphological characters are scant. Host specificity is therefore a great aid to discriminate between species but appropriate species delimitation methods that account for actual diversity are needed to identify both specialist and generalist taxa and avoid inflating or underestimating diversity. We use the Biatoropsis-Usnea system to study factors inducing parasite diversification. We employ morphological, ecological, and molecular data-methods including genealogical concordance phylogenetic species recognition (GCPSR) and the general mixed Yule-coalescent (GMYC) model-to assess the diversity of fungi currently assigned to Biatoropsis usnearum. The degree of cospeciation in this association is assessed with two cophylogeny analysis tools (ParaFit and Jane 4.0). Biatoropsis constitutes a species complex formed by at least seven different independent lineages and host switching is a prominent force driving speciation, particularly in host specialists. Combining ITS and nLSU is recommended as barcode system in tremellalean fungi.
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Affiliation(s)
- Ana M Millanes
- Departamento de Biología y Geología, Universidad Rey Juan Carlos, E-28933 Móstoles, Spain.
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36
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Lopardo L, Uhl G. Testing mitochondrial marker efficacy for DNA barcoding in spiders: a test case using the dwarf spider genus Oedothorax (Araneae : Linyphiidae : Erigoninae). INVERTEBR SYST 2014. [DOI: 10.1071/is14017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The present study focusses on comparatively assessing the efficacy for DNA barcoding of the two most commonly used mitochondrial markers (cox1 and 16S) in a genus of erigonine spiders. In total, 53 specimens representing five species, including four multi-sampled species, were sampled from several European localities. Initial evaluation of species monophyly was performed through parsimony and Bayesian phylogenetic analyses. Efficacy of mitochondrial markers was tested using operational (including distance-, tree-based measures and Barcode Gap) and evolutionary criteria (using the General Mixed Yule-coalescent Model) for species delimitation. We propose that the cox1 marker can potentially overestimate analyses of biodiversity and thus might not be the preferred marker for DNA species identification and delimitation methods in Oedothorax. Instead, our results suggest that the 16S marker appears to be a promising candidate for such endeavour. Evaluating the contribution and suitability of markers to the re-identification of species, measured by their recovery of well established morphological species, is critical for future studies and for reliable results in species identification in spiders.
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37
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Feindt W, Fincke O, Hadrys H. Still a one species genus? Strong genetic diversification in the world’s largest living odonate, the Neotropical damselfly Megaloprepus caerulatus. CONSERV GENET 2013. [DOI: 10.1007/s10592-013-0554-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Chapple DG, Ritchie PA. A retrospective approach to testing the DNA barcoding method. PLoS One 2013; 8:e77882. [PMID: 24244283 PMCID: PMC3823873 DOI: 10.1371/journal.pone.0077882] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Accepted: 09/13/2013] [Indexed: 11/18/2022] Open
Abstract
A decade ago, DNA barcoding was proposed as a standardised method for identifying existing species and speeding the discovery of new species. Yet, despite its numerous successes across a range of taxa, its frequent failures have brought into question its accuracy as a short-cut taxonomic method. We use a retrospective approach, applying the method to the classification of New Zealand skinks as it stood in 1977 (primarily based upon morphological characters), and compare it to the current taxonomy reached using both morphological and molecular approaches. For the 1977 dataset, DNA barcoding had moderate-high success in identifying specimens (78-98%), and correctly flagging specimens that have since been confirmed as distinct taxa (77-100%). But most matching methods failed to detect the species complexes that were present in 1977. For the current dataset, there was moderate-high success in identifying specimens (53-99%). For both datasets, the capacity to discover new species was dependent on the methodological approach used. Species delimitation in New Zealand skinks was hindered by the absence of either a local or global barcoding gap, a result of recent speciation events and hybridisation. Whilst DNA barcoding is potentially useful for specimen identification and species discovery in New Zealand skinks, its error rate could hinder the progress of documenting biodiversity in this group. We suggest that integrated taxonomic approaches are more effective at discovering and describing biodiversity.
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Affiliation(s)
- David G. Chapple
- School of Biological Sciences, Monash University, Clayton, Victoria, Australia
- Allan Wilson Centre for Molecular Ecology and Evolution, School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Peter A. Ritchie
- Allan Wilson Centre for Molecular Ecology and Evolution, School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
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Seraphim N, Marín MA, Freitas AVL, Silva-Brandão KL. Morphological and molecular marker contributions to disentangling the crypticHermeuptychia hermesspecies complex (Nymphalidae: Satyrinae: Euptychiina). Mol Ecol Resour 2013; 14:39-49. [DOI: 10.1111/1755-0998.12161] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 08/06/2013] [Accepted: 08/08/2013] [Indexed: 11/30/2022]
Affiliation(s)
- N. Seraphim
- Departamento de Biologia Animal; Instituto de Biologia; Universidade Estadual de Campinas (UNICAMP); Cidade Universitária - Zeferino Vaz; Caixa Postal 6109 Barão Geraldo 13083-970 Campinas SP Brazil
| | - M. A. Marín
- Grupo de Investigación en Sistemática Molecular; Universidad Nacional de Colombia; Calle 59A No 63-20, bloque 16-102 Medellín Colombia
| | - A. V. L. Freitas
- Departamento de Biologia Animal; Instituto de Biologia; Universidade Estadual de Campinas (UNICAMP); Cidade Universitária - Zeferino Vaz; Caixa Postal 6109 Barão Geraldo 13083-970 Campinas SP Brazil
| | - K. L. Silva-Brandão
- Centro de Energia Nuclear na Agricultura, Universidade de São Paulo; Campus ‘Luiz de Queiroz’; (CENA/USP) Av. Centenário, 303, Caixa Postal 96 13400-970 Piracicaba SP Brazil
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Bergmann T, Rach J, Damm S, DeSalle R, Schierwater B, Hadrys H. The potential of distance-based thresholds and character-based DNA barcoding for defining problematic taxonomic entities by CO1 and ND1. Mol Ecol Resour 2013; 13:1069-81. [DOI: 10.1111/1755-0998.12125] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Accepted: 04/09/2013] [Indexed: 11/28/2022]
Affiliation(s)
- T. Bergmann
- ITZ Ecology & Evolution; TiHo Hannover; Bünteweg 17d; D-30559; Hannover; Germany
| | - J. Rach
- ITZ Ecology & Evolution; TiHo Hannover; Bünteweg 17d; D-30559; Hannover; Germany
| | - S. Damm
- ITZ Ecology & Evolution; TiHo Hannover; Bünteweg 17d; D-30559; Hannover; Germany
| | - R. DeSalle
- American Museum of Natural History; The Sackler Institute for Comparative Genomics; New York; NY; 10024; USA
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Kvie KS, Hogner S, Aarvik L, Lifjeld JT, Johnsen A. Deep sympatric mtDNA divergence in the autumnal moth (Epirrita autumnata). Ecol Evol 2012; 3:126-44. [PMID: 23404314 PMCID: PMC3568849 DOI: 10.1002/ece3.434] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 10/29/2012] [Accepted: 11/01/2012] [Indexed: 02/01/2023] Open
Abstract
Deep sympatric intraspecific divergence in mtDNA may reflect cryptic species or formerly distinct lineages in the process of remerging. Preliminary results from DNA barcoding of Scandinavian butterflies and moths showed high intraspecific sequence variation in the autumnal moth, Epirrita autumnata. In this study, specimens from different localities in Norway and some samples from Finland and Scotland, with two congeneric species as outgroups, were sequenced with mitochondrial and nuclear markers to resolve the discrepancy found between mtDNA divergence and present species-level taxonomy. We found five COI sub-clades within the E. autumnata complex, most of which were sympatric and with little geographic structure. Nuclear markers (ITS2 and Wingless) showed little variation and gave no indications that E. autumnata comprises more than one species. The samples were screened with primers for Wolbachia outer surface gene (wsp) and 12% of the samples tested positive. Two Wolbachia strains were associated with different mtDNA sub-clades within E. autumnata, which may indicate indirect selection/selective sweeps on haplotypes. Our results demonstrate that deep mtDNA divergences are not synonymous with cryptic speciation and this has important implications for the use of mtDNA in species delimitation, like in DNA barcoding.
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Affiliation(s)
- Kjersti S Kvie
- Natural History Museum, University of Oslo P.O. Box 1172, Blindern, N-0318, Oslo, Norway ; Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science P.O. Box 8146 Dep, N-0033, Oslo, Norway
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Dejaco T, Arthofer W, Sheets HD, Moder K, Thaler-Knoflach B, Christian E, Mendes LF, Schlick-Steiner BC, Steiner FM. A toolbox for integrative species delimitation in Machilis jumping bristletails (Microcoryphia: Machilidae). ZOOL ANZ 2012. [DOI: 10.1016/j.jcz.2011.12.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zou S, Li Q, Kong L. Monophyly, distance and character-based multigene barcoding reveal extraordinary cryptic diversity in Nassarius: a complex and dangerous community. PLoS One 2012; 7:e47276. [PMID: 23071774 PMCID: PMC3469534 DOI: 10.1371/journal.pone.0047276] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Accepted: 09/10/2012] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Correct identification and cryptic biodiversity revelation for marine organisms are pressing since the marine life is important in maintaining the balance of ecological system and is facing the problem of biodiversity crisis or food safety. DNA barcoding has been proved successful to provide resolution beyond the boundaries of morphological information. Nassarius, the common mudsnail, plays an important role in marine environment and has problem in food safety, but the classification of it is quite confused because of the complex morphological diversity. METHODOLOGY/PRINCIPAL FINDINGS Here we report a comprehensive barcoding analysis of 22 Nassarius species. We integrated the mitochondrial and nuclear sequences and the morphological characters to determine 13 Nassarius species studied and reveal four cryptic species and one pair synonyms. Distance, monophyly, and character-based barcoding methods were employed. CONCLUSIONS/SIGNIFICANCE Such successful identification and unexpected cryptic discovery is significant for Nassarius in food safety and species conversation and remind us to pay more attention to the hidden cryptic biodiversity ignored in marine life. Distance, monophyly, and character-based barcoding methods are all very helpful in identification but the character-based method shows some advantages.
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Affiliation(s)
- Shanmei Zou
- Key Laboratory of Mariculture Ministry of Education, Ocean University of China, Qingdao, China
| | - Qi Li
- Key Laboratory of Mariculture Ministry of Education, Ocean University of China, Qingdao, China
| | - Lingfeng Kong
- Key Laboratory of Mariculture Ministry of Education, Ocean University of China, Qingdao, China
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Cruz-Barraza JA, Carballo JL, Rocha-Olivares A, Ehrlich H, Hog M. Integrative taxonomy and molecular phylogeny of genus Aplysina (Demospongiae: Verongida) from Mexican Pacific. PLoS One 2012; 7:e42049. [PMID: 22912682 PMCID: PMC3418280 DOI: 10.1371/journal.pone.0042049] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Accepted: 07/02/2012] [Indexed: 11/18/2022] Open
Abstract
Integrative taxonomy provides a major approximation to species delimitation based on integration of different perspectives (e.g. morphology, biochemistry and DNA sequences). The aim of this study was to assess the relationships and boundaries among Eastern Pacific Aplysina species using morphological, biochemical and molecular data. For this, a collection of sponges of the genus Aplysina from the Mexican Pacific was studied on the basis of their morphological, chemical (chitin composition), and molecular markers (mitochondrial COI and nuclear ribosomal rDNA: ITS1-5.8-ITS2). Three morphological species were identified, two of which are new to science. A. clathrata sp. nov. is a yellow to yellow-reddish or -brownish sponge, characterized by external clathrate-like morphology; A. revillagigedi sp. nov. is a lemon yellow to green, cushion-shaped sometimes lobate sponge, characterized by conspicuous oscules, which are slightly elevated and usually linearly distributed on rims; and A. gerardogreeni a known species distributed along the Mexican Pacific coast. Chitin was identified as the main structural component within skeletons of the three species using FTIR, confirming that it is shared among Verongida sponges. Morphological differences were confirmed by DNA sequences from nuclear ITS1-5.8-ITS2. Mitochondrial COI sequences showed extremely low but diagnostic variability for Aplysina revillagigedi sp. nov., thus our results corroborate that COI has limited power for DNA-barcoding of sponges and should be complemented with other markers (e.g. rDNA). Phylogenetic analyses of Aplysina sequences from the Eastern Pacific and Caribbean, resolved two allopatric and reciprocally monophyletic groups for each region. Eastern Pacific species were grouped in general accordance with the taxonomic hypothesis based on morphological characters. An identification key of Eastern Pacific Aplysina species is presented. Our results constitute one of the first approximations to integrative taxonomy, phylogeny and evolutionary biogeography of Eastern Pacific marine sponges; an approach that will significantly contribute to our better understanding of their diversity and evolutionary history.
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Affiliation(s)
- José Antonio Cruz-Barraza
- Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Mazatlán Sinaloa, México.
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Non-ecological speciation, niche conservatism and thermal adaptation: how are they connected? ORG DIVERS EVOL 2012. [DOI: 10.1007/s13127-012-0082-6] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Damm S, Hadrys H. A dragonfly in the desert: genetic pathways of the widespread Trithemis arteriosa (Odonata: Libellulidae) suggest male-biased dispersal. ORG DIVERS EVOL 2012. [DOI: 10.1007/s13127-012-0079-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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van Velzen R, Weitschek E, Felici G, Bakker FT. DNA barcoding of recently diverged species: relative performance of matching methods. PLoS One 2012; 7:e30490. [PMID: 22272356 PMCID: PMC3260286 DOI: 10.1371/journal.pone.0030490] [Citation(s) in RCA: 124] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Accepted: 12/22/2011] [Indexed: 12/23/2022] Open
Abstract
Recently diverged species are challenging for identification, yet they are frequently of special interest scientifically as well as from a regulatory perspective. DNA barcoding has proven instrumental in species identification, especially in insects and vertebrates, but for the identification of recently diverged species it has been reported to be problematic in some cases. Problems are mostly due to incomplete lineage sorting or simply lack of a 'barcode gap' and probably related to large effective population size and/or low mutation rate. Our objective was to compare six methods in their ability to correctly identify recently diverged species with DNA barcodes: neighbor joining and parsimony (both tree-based), nearest neighbor and BLAST (similarity-based), and the diagnostic methods DNA-BAR, and BLOG. We analyzed simulated data assuming three different effective population sizes as well as three selected empirical data sets from published studies. Results show, as expected, that success rates are significantly lower for recently diverged species (∼75%) than for older species (∼97%) (P<0.00001). Similarity-based and diagnostic methods significantly outperform tree-based methods, when applied to simulated DNA barcode data (P<0.00001). The diagnostic method BLOG had highest correct query identification rate based on simulated (86.2%) as well as empirical data (93.1%), indicating that it is a consistently better method overall. Another advantage of BLOG is that it offers species-level information that can be used outside the realm of DNA barcoding, for instance in species description or molecular detection assays. Even though we can confirm that identification success based on DNA barcoding is generally high in our data, recently diverged species remain difficult to identify. Nevertheless, our results contribute to improved solutions for their accurate identification.
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Affiliation(s)
- Robin van Velzen
- Biosystematics Group, Wageningen University, Wageningen, The Netherlands.
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Zou S, Li Q, Kong L, Yu H, Zheng X. Comparing the usefulness of distance, monophyly and character-based DNA barcoding methods in species identification: a case study of neogastropoda. PLoS One 2011; 6:e26619. [PMID: 22039517 PMCID: PMC3200347 DOI: 10.1371/journal.pone.0026619] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Accepted: 09/29/2011] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND DNA barcoding has recently been proposed as a promising tool for the rapid species identification in a wide range of animal taxa. Two broad methods (distance and monophyly-based methods) have been used. One method is based on degree of DNA sequence variation within and between species while another method requires the recovery of species as discrete clades (monophyly) on a phylogenetic tree. Nevertheless, some issues complicate the use of both methods. A recently applied new technique, the character-based DNA barcode method, however, characterizes species through a unique combination of diagnostic characters. METHODOLOGY/PRINCIPAL FINDINGS Here we analyzed 108 COI and 102 16S rDNA sequences of 40 species of Neogastropoda from a wide phylogenetic range to assess the performance of distance, monophyly and character-based methods of DNA barcoding. The distance-based method for both COI and 16S rDNA genes performed poorly in terms of species identification. Obvious overlap between intraspecific and interspecific divergences for both genes was found. The "10× rule" threshold resulted in lumping about half of distinct species for both genes. The neighbour-joining phylogenetic tree of COI could distinguish all species studied. However, the 16S rDNA tree could not distinguish some closely related species. In contrast, the character-based barcode method for both genes successfully identified 100% of the neogastropod species included, and performed well in discriminating neogastropod genera. CONCLUSIONS/SIGNIFICANCE This present study demonstrates the effectiveness of the character-based barcoding method for species identification in different taxonomic levels, especially for discriminating the closely related species. While distance and monophyly-based methods commonly use COI as the ideal gene for barcoding, the character-based approach can perform well for species identification using relatively conserved gene markers (e.g., 16S rDNA in this study). Nevertheless, distance and monophyly-based methods, especially the monophyly-based method, can still be used to flag species.
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Affiliation(s)
- Shanmei Zou
- Key Laboratory of Mariculture Ministry of Education Ocean University of China, Qingdao, China
| | - Qi Li
- Key Laboratory of Mariculture Ministry of Education Ocean University of China, Qingdao, China
| | - Lingfeng Kong
- Key Laboratory of Mariculture Ministry of Education Ocean University of China, Qingdao, China
| | - Hong Yu
- Key Laboratory of Mariculture Ministry of Education Ocean University of China, Qingdao, China
| | - Xiaodong Zheng
- Key Laboratory of Mariculture Ministry of Education Ocean University of China, Qingdao, China
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Puillandre N, Lambert A, Brouillet S, Achaz G. ABGD, Automatic Barcode Gap Discovery for primary species delimitation. Mol Ecol 2011; 21:1864-77. [PMID: 21883587 DOI: 10.1111/j.1365-294x.2011.05239.x] [Citation(s) in RCA: 1639] [Impact Index Per Article: 126.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- N Puillandre
- UMR 7138, Muséum National d'Histoire Naturelle, Departement Systématique et Evolution, Paris, France
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Reid BN, LE M, McCord WP, Iverson JB, Georges A, Bergmann T, Amato G, Desalle R, Naro-Maciel E. Comparing and combining distance-based and character-based approaches for barcoding turtles. Mol Ecol Resour 2011; 11:956-67. [PMID: 21635698 DOI: 10.1111/j.1755-0998.2011.03032.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Molecular barcoding can serve as a powerful tool in wildlife forensics and may prove to be a vital aid in conserving organisms that are threatened by illegal wildlife trade, such as turtles (Order Testudines). We produced cytochrome oxidase subunit one (COI) sequences (650 bp) for 174 turtle species and combined these with publicly available sequences for 50 species to produce a data set representative of the breadth of the order. Variability within the barcode region was assessed, and the utility of both distance-based and character-based methods for species identification was evaluated. For species in which genetic material from more than one individual was available (n = 69), intraspecific divergences were 1.3% on average, although divergences greater than the customary 2% barcode threshold occurred within 15 species. High intraspecific divergences could indicate species with a high degree of internal genetic structure or possibly even cryptic species, although introgression is also probable in some of these taxa. Divergences between species of the same genus were 6.4% on average; however, 49 species were <2% divergent from congeners. Low levels of interspecific divergence could be caused by recent evolutionary radiations coupled with the low rates of mtDNA evolution previously observed in turtles. Complementing distance-based barcoding with character-based methods for identifying diagnostic sets of nucleotides provided better resolution in several cases where distance-based methods failed to distinguish species. An online identification engine was created to provide character-based identifications. This study constitutes the first comprehensive barcoding effort for this seriously threatened order.
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Affiliation(s)
- B N Reid
- Department of Forest and Wildlife Ecology, University of Wisconsin, 1630 Linden Drive, Madison, WI 53706, USA.
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