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Machordom A, Ahyong ST, Andreakis N, Baba K, Buckley D, García-Jiménez R, McCallum AW, Rodríguez-Flores PC, Macpherson E. Deconstructing the crustacean squat lobster genus. INVERTEBR SYST 2022. [DOI: 10.1071/is22013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Unravelling the evolutionary history of taxa requires solid delimitation of the traits characterising these. This can be challenging especially in groups with a highly complex taxonomy. The squat lobster family Munididae contains more than 450 species distributed among 21 genera, Munida being the most speciose (~300 species). Previous phylogenetic studies, based on a small part of the diversity of the group, have suggested polyphyletic origins for Munida and the paraphyly of Munididae. Here, we use an integrative approach based on multi-locus phylogenies (two mitochondrial and three nuclear markers) paired with 120 morphological characters, to resolve taxonomic and evolutionary relationships within Munididae. Our study covers ~60% of the family’s known diversity (over 800 specimens of 291 species belonging to 19 of the 21 genera collected from the Atlantic, Indian and Pacific oceans). Using this information, we confirm the validity of most genera, proposing new ones in cases where the genetic analyses are compatible with morphological characters. Four well-defined munidid clades were recovered, suggesting that new genera should be erected in the currently recognised Munididae (three for the genus Agononida and eleven in Munida), and the genus Grimothea is resurrected. A key to all genera of the family is presented. Molecular clock estimates and ancestral biogeographic area reconstructions complement the taxonomic profiles and suggest some explosive diversification within Munididae during the Cretaceous and the Palaeogene. Further anagenetic events and narrow sympatry accounting for changes in distribution indicate a more limited dispersal capacity than previously considered. Our study unravels how diversification may occur in deep waters and further highlights the importance of the integrative approach in accurately delineating species in understanding the history of a family and the factors driving the evolution. ZooBank LSID: urn:lsid:zoobank.org:pub:16A61C4A-8D96-4372-820F-8EBDF179B43C
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Pinochet R, Pardo LM, Cárdenas L. Assessing diversity of King Crab Lithodes spp. in the south-eastern pacific using phylogeny and molecular species delimitation methods. Ecol Evol 2022; 12:e9143. [PMID: 35923941 PMCID: PMC9339758 DOI: 10.1002/ece3.9143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 06/28/2022] [Accepted: 07/01/2022] [Indexed: 11/08/2022] Open
Abstract
The purpose of this study was to test the hypothesis that the genetic diversity of commercially significant species of King Crabs (Lithodes spp.) along the south-eastern Pacific (SEP) comprises different independent evolutionary units (IEUs) with spatially isolated distribution. Nine localities from inner and open waters along the SEP Chilean coast (39°S-55°S) were sampled. We analyzed sequences from 173 individuals for the mitochondrial gene Cytochrome oxidase I (COX-I), 151 individuals for the Internal Transcribed Spacer 1 (ITS) and 135 for the structural ribosomal RNA (28S). Genetic delimitation was performed through three analytical methods: ABGD, GMYC, and its Bayesian implementation, bGMYC. Bayesian phylogenetic analyses and haplotype networks were also performed. Divergence time between clades was assessed for the COX-I marker and estimated from known evolutionary rates for this marker in other crustacean species and fossil calibration from other Anomuran species. Delimitation analyses, phylogenetic analyses, and mitochondrial haplotype networks suggested the presence of two deeply divergent mitochondrial lineages of Lithodes in the SEP, referred to as Clade1 and Clade 2. Nuclear markers showed low phylogenetic resolution and therefore were unsuitable for molecular species delimitation. Divergence time analysis of the mitochondrial lineages suggests a separation between Clades of approximately 2.3 Mya. The divergence time obtained suggested that Pliocene glaciations and deglaciations cycles could be involved in hybridization events between Lithodes IEUs at southern tip of South American coasts. The different frequencies of Lithodes haplotypes in inner and open water environments along SEP coasts could be explained by events such as the last glacial maximum or by differences in the adaptation of each clade to different environments. These findings support the necessity of evaluating the taxonomic status of Lithodes individuals found along SEP coasts under an integrative taxonomy approach or through markers with other evolution rates than those already used.
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Affiliation(s)
- Ramona Pinochet
- Programa de Doctorado en Biología Marina, Facultad de CienciasUniversidad Austral de ChileValdiviaChile
- Centro de Investigación de Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL)ValdiviaChile
| | - Luis Miguel Pardo
- Centro de Investigación de Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL)ValdiviaChile
- Instituto de Ciencias Marinas y Limnológicas, Facultad de CienciasUniversidad Austral de ChileValdiviaChile
| | - Leyla Cárdenas
- Centro de Investigación de Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL)ValdiviaChile
- Instituto de Ciencias ambientales y evolutivas, Facultad de CienciasUniversidad Austral de ChileValdiviaChile
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3
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Rodríguez-Flores P, Macpherson E, Schnabel K, Ahyong S, Corbari L, Machordom A. Depth as a driver of evolution and diversification of ancient squat lobsters (Decapoda, Galatheoidea, Phylladiorhynchus). Mol Phylogenet Evol 2022; 171:107467. [DOI: 10.1016/j.ympev.2022.107467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 03/09/2022] [Accepted: 03/15/2022] [Indexed: 11/28/2022]
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4
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Rodrguez-Flores PC, Macpherson E, Machordom A. Revision of the squat lobsters of the genus Phylladiorhynchus Baba, 1969 (Crustacea, Decapoda, Galatheidae) with the description of 41 new species. Zootaxa 2021; 5008:1-159. [PMID: 34810473 DOI: 10.11646/zootaxa.5008.1.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Indexed: 11/04/2022]
Abstract
The genus Phylladiorhynchus Baba, 1969 currently contains 11 species, all occurring in the shallow waters and on the continental shelf of the Indian and Pacific oceans. Recent expeditions in these oceans have resulted in the collection of numerous new specimens in need of analysis. We have studied this material using an integrative approach analysing both morphological and molecular (COI and 16S) characters. We describe 41 new species and resurrect three old names: P. integrus (Benedict, 1902) and P. lenzi (Rathbun, 1907), previously synonymized with P. pusillus (Henderson, 1885), and P. serrirostris (Melin, 1939), previously synonymized with P. integrirostris (Dana, 1852). Most species of the genus are described and illustrated. Some species are barely discernible on the basis of morphological characters but are highly divergent genetically. Species of Phylladiorhynchus are mainly distinguishable by the number of epigastric spines and lateral spines of the carapace, the shape and the armature of the rostrum, the number and pattern of the ridges on the carapace and pleon, the shape of thoracic sternite 3 and the armature of the P24 dactyli. A dichotomous identification key to all species is provided.
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Affiliation(s)
- Paula C Rodrguez-Flores
- Centre dEstudis Avants de Blanes (CEAB-CSIC), C. acc. Cala Sant Francesc, 14, 17300 Blanes, Girona, Spain. Museo Nacional de Ciencias Naturales (MNCN-CSIC), Jos Gutirrez Abascal, 2, 28006 Madrid, Spain. .
| | - Enrique Macpherson
- Centre dEstudis Avants de Blanes (CEAB-CSIC), C. acc. Cala Sant Francesc, 14, 17300 Blanes, Girona, Spain. .
| | - Annie Machordom
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), Jos Gutirrez Abascal, 2, 28006 Madrid, Spain..
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Dong D, Gan Z, Li X. Descriptions of eleven new species of squat lobsters (Crustacea: Anomura) from seamounts around the Yap and Mariana Trenches with notes on DNA barcodes and phylogeny. Zool J Linn Soc 2021. [DOI: 10.1093/zoolinnean/zlab003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Seamounts are well known for the high biodiversity and endemism of their macrobenthic fauna. Hundreds of squat lobster species from seamount environments have been reported in recent years, but squat lobster fauna on the seamount groups around ocean trenches in the tropical West Pacific are still poorly known. In this paper, we describe 11 new species (two Munida, three Munidopsis, one Sternostylus, one Uroptychodes and four Uroptychus) based on specimens collected during expeditions to seamounts around the Yap Trench and Mariana Trench. Of these species, six belong to the superfamily Chirostyloidea and five belong to Galatheoidea. We also provide DNA barcode data for three genes to support the taxonomic status of these new species. The morphological variations, genetic differentiation and phylogenetic relationships of these species are discussed.
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Affiliation(s)
- Dong Dong
- Department of Marine Organism Taxonomy & Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Zhibin Gan
- Department of Marine Organism Taxonomy & Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Xinzheng Li
- Department of Marine Organism Taxonomy & Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
- University of Chinese Academy of Sciences, Beijing, China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China
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6
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Gallardo Salamanca MDLÁ, Macpherson E, Tapia Guerra JM, Asorey CM, Sellanes J. A new species of Munida Leach, 1820 (Crustacea: Decapoda: Anomura: Munididae) from seamounts of the Nazca-Desventuradas Marine Park. PeerJ 2021; 9:e10531. [PMID: 33505787 PMCID: PMC7792524 DOI: 10.7717/peerj.10531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/19/2020] [Indexed: 11/20/2022] Open
Abstract
Munida diritas sp. nov. is described for the seamounts near Desventuradas Islands, in the intersection of the Salas & Gómez and Nazca Ridges, Chile. Specimens of the new species were collected in the summit (∼200 m depth) of one seamount and observed by ROV at two nearby ones. This species is characterized by the presence of distinct carinae on the thoracic sternites 6 and 7. Furthermore, it is not related with any species from the continental shelf nor the slope of America, while it is closely related to species of Munida from French Polynesia and the West-Pacific Ocean (i.e., M. ommata, M. psylla and M. rufiantennulata). In situ observations indicate that the species lives among the tentacles of ceriantarid anemones and preys on small crustaceans. The discovery of this new species adds to the knowledge of the highly endemic benthic fauna of seamounts of the newly created Nazca-Desventuradas Marine Park, emphasizing the relevance of this area for marine conservation.
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Affiliation(s)
- María de Los Ángeles Gallardo Salamanca
- Sala de Colecciones Biológicas, Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile.,Departamento de Biología Marina & Núcleo Milenio Ecología y Manejo Sustentable de Islas Oceánicas, Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile
| | | | - Jan M Tapia Guerra
- Sala de Colecciones Biológicas, Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile.,Programa de Magister en Ciencias del Mar Mención Recursos Costeros, Facultad de ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile
| | - Cynthia M Asorey
- Sala de Colecciones Biológicas, Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile.,Departamento de Biología Marina & Núcleo Milenio Ecología y Manejo Sustentable de Islas Oceánicas, Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile
| | - Javier Sellanes
- Sala de Colecciones Biológicas, Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile.,Departamento de Biología Marina & Núcleo Milenio Ecología y Manejo Sustentable de Islas Oceánicas, Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile
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7
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Macpherson E, Chan TY, Kumar AB, Rodríguez-Flores PC. On some squat lobsters from India (Decapoda, Anomura, Munididae), with description of a new species of Paramunida Baba, 1988. Zookeys 2020; 965:17-36. [PMID: 32973379 PMCID: PMC7483394 DOI: 10.3897/zookeys.965.55213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 08/06/2020] [Indexed: 11/12/2022] Open
Abstract
Squat lobster specimens belonging to the family Munididae were recently collected along the southwestern coast of the mainland of India and in the Andaman Islands. The specimens belong to two known species, Agononida prolixa (Alcock, 1894) and Munida compacta Macpherson, 1997, and a new species, Paramunida bineeshi sp. nov. We here redescribe A. prolixa and describe and figure the new species. Munida compacta is newly recorded from India, and we figure the live coloration. In addition, molecular and phylogenetic analyses of two mitochondrial markers (16S rRNA and COI) revealed the phylogenetic relationships of M. compacta and P. bineeshi sp. nov. with their most closely related congeners. The genetic similarity among the individuals of M. compacta from different locations is also addressed.
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Affiliation(s)
- Enrique Macpherson
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), C. acc. Cala Sant Francesc 14 17300 Blanes, Girona, Spain Centre d'Estudis Avançats de Blanes Blanes Spain
| | - Tin-Yam Chan
- Institute of Marine Biology and Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20224, Taiwan, ROC National Taiwan Ocean University Keelung Taiwan
| | - Appukuttannair Biju Kumar
- Department of Aquatic Biology and Fisheries, University of Kerala, Thiruvananthapuram 695581, Kerala, India Univeristy of Kerala Kerala India
| | - Paula C Rodríguez-Flores
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), C. acc. Cala Sant Francesc 14 17300 Blanes, Girona, Spain Centre d'Estudis Avançats de Blanes Blanes Spain
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8
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Rodríguez-Flores PC, Macpherson E, Machordom A. A new species of squat lobster of the genus Hendersonida (Crustacea, Decapoda, Munididae) from Papua New Guinea. Zookeys 2020; 935:25-35. [PMID: 32508500 PMCID: PMC7256070 DOI: 10.3897/zookeys.935.51931] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 04/02/2020] [Indexed: 11/29/2022] Open
Abstract
Hendersonidaparvirostrissp. nov. is described from Papua New Guinea. The new species can be distinguished from the only other species of the genus, H.granulata (Henderson, 1885), by the fewer spines on the dorsal carapace surface, the shape of the rostrum and supraocular spines, the antennal peduncles, and the length of the walking legs. Pairwise genetic distances estimated using the 16S rRNA and COI DNA gene fragments indicated high levels of sequence divergence between the new species and H.granulata. Phylogenetic analyses, however, recovered both species as sister species, supporting monophyly of the genus.
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Affiliation(s)
- Paula C Rodríguez-Flores
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), C. acc. Cala Sant Francesc 14 17300 Blanes, Girona, Spain Centre d'Estudis Avançats de Blanes Girona Spain.,Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, 2, 28006 Madrid, Spain Museo Nacional de Ciencias Naturales Madrid Spain
| | - Enrique Macpherson
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), C. acc. Cala Sant Francesc 14 17300 Blanes, Girona, Spain Centre d'Estudis Avançats de Blanes Girona Spain
| | - Annie Machordom
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, 2, 28006 Madrid, Spain Museo Nacional de Ciencias Naturales Madrid Spain
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9
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Adeoba MI, Yessoufou K. Analysis of temporal diversification of African Cyprinidae (Teleostei, Cypriniformes). Zookeys 2018:141-161. [PMID: 30588160 PMCID: PMC6302146 DOI: 10.3897/zookeys.806.25844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 10/02/2018] [Indexed: 11/12/2022] Open
Abstract
Recent evidence that freshwater fishes diversify faster than marine fishes signifies that the evolutionary history of biodiversity in freshwater system is of particular interest. Here, the evolutionary diversification events of African Cyprinidae, a freshwater fish family with wide geographic distribution, were reconstructed and analysed. The overall diversification rate of African Cyprinidae is 0.08 species per million year (when extinction rate is very high, i.e., ε = 0.9) and 0.11 species per million year (when ε = 0). This overall rate is lower than the rate reported for African Cichlids, suggesting that African freshwaters might be less conducive for a rapid diversification of Cyprinidae. However, the observed diversification events of African Cyprinidae occurred in the last 10 million years. The temporal pattern of these events follows a non-constant episodic birth-death model (Bayes Factor > 28) and the rate-constant model never outperformed any of the non-constant models tested. The fact that most diversification events occurred in the last 10 million years supports the pattern reported for Cyprinidae in other continent, e.g., Asia, perhaps pointing to concomitant diversification globally. However, the diversification events coincided with major geologic and paleo-climatic events in Africa, suggesting that geological and climatic events may have mediated the diversification patterns of Cyprinidae on the continent.
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Affiliation(s)
- Mariam I Adeoba
- Department of Zoology, University of Johannesburg, Kingsway Campus PO Box 524, Auckland Park 2006, South Africa University of Johannesburg Johannesburg South Africa
| | - Kowiyou Yessoufou
- Department of Geography, Environmental management and Energy studies, University of Johannesburg, Kingsway Campus PO Box 524, Auckland Park 2006, South Africa University of Johannesburg Johannesburg South Africa
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Rodríguez-Flores PC, Macpherson E, Buckley D, Machordom A. High morphological similarity coupled with high genetic differentiation in new sympatric species of coral-reef squat lobsters (Crustacea: Decapoda: Galatheidae). Zool J Linn Soc 2018. [DOI: 10.1093/zoolinnean/zly074] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Paula C Rodríguez-Flores
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, Madrid, Spain
- Centre d’Estudis Avançats de Blanes (CEAB-CSIC), C. d’Accés Cala Sant Francesc, Blanes, Spain
| | - Enrique Macpherson
- Centre d’Estudis Avançats de Blanes (CEAB-CSIC), C. d’Accés Cala Sant Francesc, Blanes, Spain
| | - David Buckley
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, Madrid, Spain
- Centre d’Estudis Avançats de Blanes (CEAB-CSIC), C. d’Accés Cala Sant Francesc, Blanes, Spain
| | - Annie Machordom
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, Madrid, Spain
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11
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ORDER within the chaos: Insights into phylogenetic relationships within the Anomura (Crustacea: Decapoda) from mitochondrial sequences and gene order rearrangements. Mol Phylogenet Evol 2018; 127:320-331. [DOI: 10.1016/j.ympev.2018.05.015] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 05/03/2018] [Accepted: 05/13/2018] [Indexed: 01/08/2023]
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12
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Palero F, Robainas-Barcia A, Corbari L, Macpherson E. Phylogeny and evolution of shallow-water squat lobsters (Decapoda, Galatheoidea) from the Indo-Pacific. ZOOL SCR 2016. [DOI: 10.1111/zsc.12230] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ferran Palero
- INRA, University of Nice Sophia Antipolis; CNRS, UMR 1355-7254, Institut Sophia Agrobiotech; Sophia Antipolis 06900 France
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC); Carrer d'Accés a la Cala Sant Francesc 14 17300 Blanes Spain
| | - Aymee Robainas-Barcia
- Departament de Genètica; Facultat de Biologia; Universitat de Barcelona; Av. Diagonal 645 08028 Barcelona Spain
| | - Laure Corbari
- UMR 7205; Institut de Systématique; Evolution et Biodiversité; département Systématique et Evolution; Muséum national d'Histoire naturelle; 55 rue Buffon CP51 75005 Paris France
| | - Enrique Macpherson
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC); Carrer d'Accés a la Cala Sant Francesc 14 17300 Blanes Spain
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Reconsidering the Loss of Evolutionary History: How Does Non-random Extinction Prune the Tree-of-Life? BIODIVERSITY CONSERVATION AND PHYLOGENETIC SYSTEMATICS 2016. [DOI: 10.1007/978-3-319-22461-9_4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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14
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Thatje S, Marsh L, Roterman CN, Mavrogordato MN, Linse K. Adaptations to Hydrothermal Vent Life in Kiwa tyleri, a New Species of Yeti Crab from the East Scotia Ridge, Antarctica. PLoS One 2015; 10:e0127621. [PMID: 26107940 PMCID: PMC4480985 DOI: 10.1371/journal.pone.0127621] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 04/15/2015] [Indexed: 11/18/2022] Open
Abstract
Hydrothermal vents in the Southern Ocean are the physiologically most isolated chemosynthetic environments known. Here, we describe Kiwa tyleri sp. nov., the first species of yeti crab known from the Southern Ocean. Kiwa tyleri belongs to the family Kiwaidae and is the visually dominant macrofauna of two known vent sites situated on the northern and southern segments of the East Scotia Ridge (ESR). The species is known to depend on primary productivity by chemosynthetic bacteria and resides at the warm-eurythermal vent environment for most of its life; its short-range distribution away from vents (few metres) is physiologically constrained by the stable, cold waters of the surrounding Southern Ocean. Kiwa tylerihas been shown to present differential life history adaptations in response to this contrasting thermal environment. Morphological adaptations specific to life in warm-eurythermal waters, as found on – or in close proximity of – vent chimneys, are discussed in comparison with adaptations seen in the other two known members of the family (K. hirsuta, K. puravida), which show a preference for low temperature chemosynthetic environments.
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Affiliation(s)
- Sven Thatje
- Ocean and Earth Science, University of Southampton, European Way, Southampton, SO14 3ZH, United Kingdom
- * E-mail:
| | - Leigh Marsh
- Ocean and Earth Science, University of Southampton, European Way, Southampton, SO14 3ZH, United Kingdom
| | | | - Mark N. Mavrogordato
- Engineering Sciences, μ-VIS CT Imaging Centre, University of Southampton, Southampton, SO17 1BJ, United Kingdom
| | - Katrin Linse
- British Antarctic Survey, High Cross Madingley Road, CB3 0ET, Cambridge, United Kingdom
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Cabezas P, Macpherson E. A new species of Paramunida Baba, 1988 from the Central Pacific Ocean and a new genus to accommodate P. granulata (Henderson, 1885). Zookeys 2014; 425:15-32. [PMID: 25147446 PMCID: PMC4137303 DOI: 10.3897/zookeys.425.7882] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 06/26/2014] [Indexed: 11/29/2022] Open
Abstract
The genus Paramunida belongs to the most diverse family of galatheoids and it is commonly reported from the continental slope across the Indian and Pacific Oceans. Examination of material collected by the NOAA RV Townsend Cromwell Cruise near Christmas (Kiritimati) Island, Kiribati, revealed the existence of a new species of Paramunida (P. haigae), which represents the fourth record of the genus for the Central Pacific. Furthermore, recent efforts to unravel phylogenetic relationships and diversification patterns in Paramunida revealed P. granulata (Henderson, 1885) to be the most basally diverging taxon within the genus. This species is clearly distinguished from other species of Paramunida by the spinulation of the carapace and the length of the distomesial spine of the second antennal peduncle article, which in combination with a high level of genetic divergence suggest that this species represents a separate monotypic lineage. A new genus, Hendersonida gen. n., is proposed to accommodate this species based on morphological and molecular evidence. An updated dichotomous identification key for all species of Paramunida is presented.
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Affiliation(s)
- Patricia Cabezas
- Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology, Museum Support Center, MRC 534, 4210 Silver Hill Road. Suitland, MD 20746
| | - Enrique Macpherson
- Centre d’Estudis Avançats de Blanes (CEAB-CSIC), C. d’Accés Cala Sant Francesc 14, 17300 Blanes, Spain
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Pérez-Barros P, Lovrich GA, Calcagno JA, Confalonieri VA. Is Munida gregaria (Crustacea: Decapoda: Munididae) a truly transpacific species? Polar Biol 2014. [DOI: 10.1007/s00300-014-1531-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Yessoufou K, Bamigboye SO, Daru BH, van der Bank M. Evidence of constant diversification punctuated by a mass extinction in the African cycads. Ecol Evol 2013; 4:50-8. [PMID: 24455160 PMCID: PMC3894887 DOI: 10.1002/ece3.880] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2013] [Revised: 10/12/2013] [Accepted: 10/14/2013] [Indexed: 11/29/2022] Open
Abstract
The recent evidence that extant cycads are not living fossils triggered a renewed search for a better understanding of their evolutionary history. In this study, we investigated the evolutionary diversification history of the genus Encephalartos, a monophyletic cycad endemic to Africa. We found an antisigmoidal pattern with a plateau and punctual explosive radiation. This pattern is typical of a constant radiation with mass extinction. The rate shift that we found may therefore be a result of a rapid recolonization of niches that have been emptied owing to mass extinction. Because the explosive radiation occurred during the transition Pliocene–Pleistocene, we argued that the processes might have been climatically mediated.
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Affiliation(s)
- Kowiyou Yessoufou
- African Centre for DNA Barcoding, Department of Botany and Plant Biotechnology, University of Johannesburg P. O. Box 524, Auckland Park, Johannesburg, 2006, South Africa
| | - Samuel O Bamigboye
- African Centre for DNA Barcoding, Department of Botany and Plant Biotechnology, University of Johannesburg P. O. Box 524, Auckland Park, Johannesburg, 2006, South Africa
| | - Barnabas H Daru
- African Centre for DNA Barcoding, Department of Botany and Plant Biotechnology, University of Johannesburg P. O. Box 524, Auckland Park, Johannesburg, 2006, South Africa
| | - Michelle van der Bank
- African Centre for DNA Barcoding, Department of Botany and Plant Biotechnology, University of Johannesburg P. O. Box 524, Auckland Park, Johannesburg, 2006, South Africa
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18
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Meyer R, Weis A, Melzer RR. Decapoda of southern Chile: DNA barcoding and integrative taxonomy with focus on the generaAcanthocyclusandEurypodius. SYST BIODIVERS 2013. [DOI: 10.1080/14772000.2013.833143] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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19
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Yin J, Pan D, He C, Wang A, Yan J, Sun H. Morphological and molecular data confirm species assignment and dispersal of the genusLigia(Crustacea: Isopoda: Ligiidae) along northeastern coastal China and East Asia. Zool J Linn Soc 2013. [DOI: 10.1111/zoj.12068] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiawen Yin
- Jiangsu Key Laboratory for Biodiversity and Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing 210023 China
| | - Da Pan
- Jiangsu Key Laboratory for Biodiversity and Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing 210023 China
| | - Cha He
- Jiangsu Key Laboratory for Biodiversity and Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing 210023 China
| | - An Wang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing 210023 China
| | - Jie Yan
- Jiangsu Key Laboratory for Biodiversity and Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing 210023 China
| | - Hongying Sun
- Jiangsu Key Laboratory for Biodiversity and Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing 210023 China
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20
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Bracken-Grissom HD, Cannon ME, Cabezas P, Feldmann RM, Schweitzer CE, Ahyong ST, Felder DL, Lemaitre R, Crandall KA. A comprehensive and integrative reconstruction of evolutionary history for Anomura (Crustacea: Decapoda). BMC Evol Biol 2013; 13:128. [PMID: 23786343 PMCID: PMC3708748 DOI: 10.1186/1471-2148-13-128] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 05/21/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The infraorder Anomura has long captivated the attention of evolutionary biologists due to its impressive morphological diversity and ecological adaptations. To date, 2500 extant species have been described but phylogenetic relationships at high taxonomic levels remain unresolved. Here, we reconstruct the evolutionary history-phylogeny, divergence times, character evolution and diversification-of this speciose clade. For this purpose, we sequenced two mitochondrial (16S and 12S) and three nuclear (H3, 18S and 28S) markers for 19 of the 20 extant families, using traditional Sanger and next-generation 454 sequencing methods. Molecular data were combined with 156 morphological characters in order to estimate the largest anomuran phylogeny to date. The anomuran fossil record allowed us to incorporate 31 fossils for divergence time analyses. RESULTS Our best phylogenetic hypothesis (morphological + molecular data) supports most anomuran superfamilies and families as monophyletic. However, three families and eleven genera are recovered as para- and polyphyletic. Divergence time analysis dates the origin of Anomura to the Late Permian ~259 (224-296) MYA with many of the present day families radiating during the Jurassic and Early Cretaceous. Ancestral state reconstruction suggests that carcinization occurred independently 3 times within the group. The invasion of freshwater and terrestrial environments both occurred between the Late Cretaceous and Tertiary. Diversification analyses found the speciation rate to be low across Anomura, and we identify 2 major changes in the tempo of diversification; the most significant at the base of a clade that includes the squat-lobster family Chirostylidae. CONCLUSIONS Our findings are compared against current classifications and previous hypotheses of anomuran relationships. Many families and genera appear to be poly- or paraphyletic suggesting a need for further taxonomic revisions at these levels. A divergence time analysis provides key insights into the origins of major lineages and events and the timing of morphological (body form) and ecological (habitat) transitions. Living anomuran biodiversity is the product of 2 major changes in the tempo of diversification; our initial insights suggest that the acquisition of a crab-like form did not act as a key innovation.
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Affiliation(s)
- Heather D Bracken-Grissom
- Department of Biology, Florida International University-Biscayne Bay Campus, North Miami, FL 33181, USA.
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21
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Bors EK, Rowden AA, Maas EW, Clark MR, Shank TM. Patterns of deep-sea genetic connectivity in the New Zealand region: implications for management of benthic ecosystems. PLoS One 2012. [PMID: 23185341 PMCID: PMC3504039 DOI: 10.1371/journal.pone.0049474] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Patterns of genetic connectivity are increasingly considered in the design of marine protected areas (MPAs) in both shallow and deep water. In the New Zealand Exclusive Economic Zone (EEZ), deep-sea communities at upper bathyal depths (<2000 m) are vulnerable to anthropogenic disturbance from fishing and potential mining operations. Currently, patterns of genetic connectivity among deep-sea populations throughout New Zealand’s EEZ are not well understood. Using the mitochondrial Cytochrome Oxidase I and 16S rRNA genes as genetic markers, this study aimed to elucidate patterns of genetic connectivity among populations of two common benthic invertebrates with contrasting life history strategies. Populations of the squat lobster Munida gracilis and the polychaete Hyalinoecia longibranchiata were sampled from continental slope, seamount, and offshore rise habitats on the Chatham Rise, Hikurangi Margin, and Challenger Plateau. For the polychaete, significant population structure was detected among distinct populations on the Chatham Rise, the Hikurangi Margin, and the Challenger Plateau. Significant genetic differences existed between slope and seamount populations on the Hikurangi Margin, as did evidence of population differentiation between the northeast and southwest parts of the Chatham Rise. In contrast, no significant population structure was detected across the study area for the squat lobster. Patterns of genetic connectivity in Hyalinoecia longibranchiata are likely influenced by a number of factors including current regimes that operate on varying spatial and temporal scales to produce potential barriers to dispersal. The striking difference in population structure between species can be attributed to differences in life history strategies. The results of this study are discussed in the context of existing conservation areas that are intended to manage anthropogenic threats to deep-sea benthic communities in the New Zealand region.
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Affiliation(s)
- Eleanor K. Bors
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, United States of America
| | - Ashley A. Rowden
- National Institute of Water and Atmospheric Research, Greta Point, Wellington, New Zealand
| | - Elizabeth W. Maas
- National Institute of Water and Atmospheric Research, Greta Point, Wellington, New Zealand
| | - Malcolm R. Clark
- National Institute of Water and Atmospheric Research, Greta Point, Wellington, New Zealand
| | - Timothy M. Shank
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, United States of America
- * E-mail:
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Cabezas P, Sanmartín I, Paulay G, Macpherson E, Machordom A. Deep under the sea: unraveling the evolutionary history of the deep-sea squat lobster Paramunida (Decapoda, Munididae). Evolution 2012; 66:1878-96. [PMID: 22671553 DOI: 10.1111/j.1558-5646.2011.01560.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The diversification of Indo-Pacific marine fauna has long captivated the attention of evolutionary biologists. Previous studies have mainly focused on coral reef or shallow water-associated taxa. Here, we present the first attempt to reconstruct the evolutionary history--phylogeny, diversification, and biogeography--of a deep-water lineage. We sequenced the molecular markers 16S, COI, ND1, 18S, and 28S for nearly 80% of the nominal species of the squat lobster genus Paramunida. Analyses of the molecular phylogeny revealed an accelerated diversification in the late Oligocene-Miocene followed by a slowdown in the rate of lineage accumulation over time. A parametric biogeographical reconstruction showed the importance of the southwest Pacific area, specifically the island arc of Fiji, Tonga, Vanuatu, Wallis, and Futuna, for diversification of squat lobsters, probably associated with the global warming, high tectonic activity, and changes in oceanic currents that took place in this region during the Oligocene-Miocene period. These results add strong evidence to the hypothesis that the Neogene was a period of major diversification for marine organisms in both shallow and deep waters.
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Affiliation(s)
- Patricia Cabezas
- Museo Nacional de Ciencias Naturales, MNCN-CSIC, José Gutiérrez Abascal 2, 28006 Madrid, Spain.
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Rogers AD, Tyler PA, Connelly DP, Copley JT, James R, Larter RD, Linse K, Mills RA, Garabato AN, Pancost RD, Pearce DA, Polunin NVC, German CR, Shank T, Boersch-Supan PH, Alker BJ, Aquilina A, Bennett SA, Clarke A, Dinley RJJ, Graham AGC, Green DRH, Hawkes JA, Hepburn L, Hilario A, Huvenne VAI, Marsh L, Ramirez-Llodra E, Reid WDK, Roterman CN, Sweeting CJ, Thatje S, Zwirglmaier K. The discovery of new deep-sea hydrothermal vent communities in the southern ocean and implications for biogeography. PLoS Biol 2012; 10:e1001234. [PMID: 22235194 PMCID: PMC3250512 DOI: 10.1371/journal.pbio.1001234] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2011] [Accepted: 11/22/2011] [Indexed: 11/23/2022] Open
Abstract
A survey of Antarctic waters along the East Scotia Ridge in the Southern Ocean reveals a new vent biogeographic province among previously uncharacterized deep-sea hydrothermal vent communities. Since the first discovery of deep-sea hydrothermal vents along the Galápagos Rift in 1977, numerous vent sites and endemic faunal assemblages have been found along mid-ocean ridges and back-arc basins at low to mid latitudes. These discoveries have suggested the existence of separate biogeographic provinces in the Atlantic and the North West Pacific, the existence of a province including the South West Pacific and Indian Ocean, and a separation of the North East Pacific, North East Pacific Rise, and South East Pacific Rise. The Southern Ocean is known to be a region of high deep-sea species diversity and centre of origin for the global deep-sea fauna. It has also been proposed as a gateway connecting hydrothermal vents in different oceans but is little explored because of extreme conditions. Since 2009 we have explored two segments of the East Scotia Ridge (ESR) in the Southern Ocean using a remotely operated vehicle. In each segment we located deep-sea hydrothermal vents hosting high-temperature black smokers up to 382.8°C and diffuse venting. The chemosynthetic ecosystems hosted by these vents are dominated by a new yeti crab (Kiwa n. sp.), stalked barnacles, limpets, peltospiroid gastropods, anemones, and a predatory sea star. Taxa abundant in vent ecosystems in other oceans, including polychaete worms (Siboglinidae), bathymodiolid mussels, and alvinocaridid shrimps, are absent from the ESR vents. These groups, except the Siboglinidae, possess planktotrophic larvae, rare in Antarctic marine invertebrates, suggesting that the environmental conditions of the Southern Ocean may act as a dispersal filter for vent taxa. Evidence from the distinctive fauna, the unique community structure, and multivariate analyses suggest that the Antarctic vent ecosystems represent a new vent biogeographic province. However, multivariate analyses of species present at the ESR and at other deep-sea hydrothermal vents globally indicate that vent biogeography is more complex than previously recognised. Deep-sea hydrothermal vents are mainly associated with seafloor spreading at mid-ocean ridges and in basins near volcanic island arcs. They host animals found nowhere else that derive their energy not from the sun but from bacterial oxidation of chemicals in the vent fluids, particularly hydrogen sulphide. Hydrothermal vents and their communities of organisms have become important models for understanding the origins and limits of life as well as evolution of island-like communities in the deep ocean. We describe the fauna associated with high-temperature hydrothermal vents on the East Scotia Ridge, Southern Ocean, to our knowledge the first to be discovered in Antarctic waters. These communities are dominated by a new species of yeti crab, stalked barnacles, limpets and snails, sea anemones, and a predatory seven-armed starfish. Animals commonly found in hydrothermal vents of the Pacific, Atlantic, and Indian Oceans, including giant Riftia tubeworms, annelid worms, vent mussels, vent crabs, and vent shrimps, were not present at the Southern Ocean vents. These discoveries suggest that the environmental conditions of the Southern Ocean may act as a barrier to some vent animals and that the East Scotia Ridge communities form a new biogeographic province with a unique species composition and structure.
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Affiliation(s)
- Alex D Rogers
- Department of Zoology, University of Oxford, Oxford, United Kingdom.
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24
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Poore GC, Andreakis N. Morphological, molecular and biogeographic evidence support two new species in the Uroptychus naso complex (Crustacea: Decapoda: Chirostylidae). Mol Phylogenet Evol 2011; 60:152-69. [DOI: 10.1016/j.ympev.2011.03.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Revised: 03/28/2011] [Accepted: 03/30/2011] [Indexed: 10/18/2022]
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25
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Kartavtsev YP. Divergence at Cyt-b and Co-1 mtDNA genes on different taxonomic levels and genetics of speciation in animals. ACTA ACUST UNITED AC 2011; 22:55-65. [PMID: 21699372 DOI: 10.3109/19401736.2011.588215] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Genetic divergence estimates using p-distances and similar measures were generated for 20,731 vertebrate and invertebrate animal species. The results of this analysis demonstrate that the data series are realistic and interpretable when the p-distance and its various derivates are used. The focus is on vertebrates and fish species in particular and the newest data set. Distance data reveal increasing levels of genetic divergence of the sequences of the two genes, cytochrome b (Cyt-b) and cytochrome c oxidase subunit 1 (Co-1), in the five groups compared: populations within species; subspecies, semi-species, or/and sibling species; species within a genus; species from different genera within a family; and species from separate families within an order. Mean unweighted scores of p-distances (%) for these five groups are Cyt-b-1.38 ± 0.30, 5.10 ± 0.91, 10.31 ± 0.93, 17.86 ± 1.36, and 26.36 ± 3.88, respectively; and Co-1-0.89 ± 0.16, 3.78 ± 1.18, 11.06 ± 0.53, 16.60 ± 0.69, and 20.57 ± 0.40, respectively. The estimates show good correspondence with other analyses. These results testify to the applicability of p-distance for most intra-species and inter-species comparisons of genetic divergence up to the order level in animals for the two genes compared. Data reviewed provide empirical and theoretical background on the geographic speciation mode prevalence in species origin and give a framework why per-individual species identification (DNA barcoding) is usually successful.
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Affiliation(s)
- Yuri Ph Kartavtsev
- A.V. Zhirmunsky Institute of Marine Biology of the Far Eastern Branch of the Russian Academy of Sciences, Vladivostok.
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26
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Kartavtsev YP. Sequence divergence at mitochondrial genes in animals: Applicability of DNA data in genetics of speciation and molecular phylogenetics. Mar Genomics 2011; 4:71-81. [DOI: 10.1016/j.margen.2011.02.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2010] [Revised: 01/26/2011] [Accepted: 02/23/2011] [Indexed: 11/15/2022]
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CABEZAS PATRICIA, MACPHERSON ENRIQUE, MACHORDOM ANNIE. Allogalathea (Decapoda: Galatheidae): a monospecific genus of squat lobster? Zool J Linn Soc 2011. [DOI: 10.1111/j.1096-3642.2010.00681.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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O'Hara TD, Rowden AA, Bax NJ. A Southern Hemisphere Bathyal Fauna Is Distributed in Latitudinal Bands. Curr Biol 2011; 21:226-30. [PMID: 21256017 DOI: 10.1016/j.cub.2011.01.002] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Revised: 12/24/2010] [Accepted: 12/30/2010] [Indexed: 11/27/2022]
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29
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Puillandre N, Macpherson E, Lambourdière J, Cruaud C, Boisselier-Dubayle MC, Samadi S. Barcoding type specimens helps to identify synonyms and an unnamed new species in Eumunida Smith, 1883 (Decapoda : Eumunididae). INVERTEBR SYST 2011. [DOI: 10.1071/is11022] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The primary purpose of DNA-barcoding projects is to generate an efficient expertise and identification tool. This is an important challenge to the taxonomy of the 21st century, as the demand increases and the expert capacity does not. However, identifying specimens using DNA-barcodes requires a preliminary analysis to relate molecular clusters to available scientific names. Through a case study of the genus Eumunida (Decapoda : Eumunididae), we illustrate how naming molecule-based units, and thus providing an accurate DNA-based identification tool, is facilitated by sequencing type specimens. Using both morphological and unlinked molecular markers (COI and 28S genes), we analysed 230 specimens from 12 geographic areas, covering two-thirds of the known diversity of the genus, including type specimens of 13 species. Most hypotheses of species delimitation are validated, as they correspond to molecular units linked to only one taxonomic name (and vice versa). However, a putative cryptic species is also revealed and three entities previously named as distinct species may in fact belong to a single one, and thus need to be synonymised. Our analyses, which integrate the current naming rules, enhance the α-taxonomy of the genus and provide an effective identification tool based on DNA-barcodes. They illustrate the ability of DNA-barcodes, especially when type specimens are included, to pinpoint where a taxonomic revision is needed.
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CABEZAS PATRICIA, MACPHERSON ENRIQUE, MACHORDOM ANNIE. Morphological and molecular description of new species of squat lobster (Crustacea: Decapoda: Galatheidae) from the Solomon and Fiji Islands (South-West Pacific). Zool J Linn Soc 2009. [DOI: 10.1111/j.1096-3642.2008.00492.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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31
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Mathews LM, Anker A. Molecular phylogeny reveals extensive ancient and ongoing radiations in a snapping shrimp species complex (Crustacea, Alpheidae, Alpheus armillatus). Mol Phylogenet Evol 2009; 50:268-81. [DOI: 10.1016/j.ympev.2008.10.026] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2008] [Revised: 10/18/2008] [Accepted: 10/30/2008] [Indexed: 11/26/2022]
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32
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McPeek M. The Ecological Dynamics of Clade Diversification and Community Assembly. Am Nat 2008; 172:E270-84. [DOI: 10.1086/593137] [Citation(s) in RCA: 250] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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33
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Williams ST, Duda Jr TF. DID TECTONIC ACTIVITY STIMULATE OLIGOMIOCENE SPECIATION IN THE INDO-WEST PACIFIC. Evolution 2008; 62:1618-1634. [DOI: 10.1111/j.1558-5646.2008.00399.x] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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34
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PÉREZ-BARROS PATRICIA, D'AMATO MEUGENIA, GUZMÁN NOELIAV, LOVRICH GUSTAVOA. Taxonomic status of two South American sympatric squat lobsters, Munida gregaria and Munida subrugosa (Crustacea: Decapoda: Galatheidae), challenged by DNA sequence information. Biol J Linn Soc Lond 2008. [DOI: 10.1111/j.1095-8312.2008.00987.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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35
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Terrat Y, Bonnivard E, Higuet D. GalEa retrotransposons from galatheid squat lobsters (Decapoda, Anomura) define a new clade of Ty1/copia-like elements restricted to aquatic species. Mol Genet Genomics 2007; 279:63-73. [PMID: 17929059 DOI: 10.1007/s00438-007-0295-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2007] [Accepted: 09/19/2007] [Indexed: 11/25/2022]
Abstract
Crustacean species have not been examined in great detail for their transposable elements content. Here we focus on galatheid crabs, which are one of the most diverse and widespread taxonomic groups of Decapoda. Ty1/copia retrotransposons are a diverse and taxonomically dispersed group. Using degenerate primers, we isolated several DNA fragments that show homology with Ty1/copia retroelements reverse transcriptase gene. We named the corresponding elements from which they originated GalEa1 to GalEa3 and analyzed one of them further by isolating various clones containing segments of GalEa1. This is the first LTR retrotransposon described in crustacean genome. Nucleotide sequencing of the clones revealed that GalEa1 has LTRs (124 bp) and that the internal sequence (4,421 bp) includes a single large ORF containing gag and pol regions. Further screening identified highly related elements in six of the nine galatheid species studied. By performing BLAST searches on genome databases, we could also identify GalEa-like elements in some fishes and Urochordata genomes. These elements define a new clade of Ty1/copia retrotransposons that differs from all other Ty1/copia elements and that seems to be restricted to aquatic species.
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Affiliation(s)
- Yves Terrat
- UMR 7138 Systématique Adaptation Evolution, Equipe Génétique et Evolution, Université Pierre and Marie Curie Paris 6, Case 5, Bât A, porte 427, 7 quai St-Bernard, 75252, Paris Cedex 05, France
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MANTELATTO FERNANDOL, ROBLES RAFAEL, FELDER DARRYLL. Molecular phylogeny of the western Atlantic species of the genus Portunus (Crustacea, Brachyura, Portunidae). Zool J Linn Soc 2007. [DOI: 10.1111/j.1096-3642.2007.00298.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Adamowicz SJ, Purvis A. FROM MORE TO FEWER? TESTING AN ALLEGEDLY PERVASIVE TREND IN THE EVOLUTION OF MORPHOLOGICAL STRUCTURE. Evolution 2006. [DOI: 10.1111/j.0014-3820.2006.tb01219.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Kartavtsev YP, Lee JS. Analysis of nucleotide diversity at the cytochrome b and cytochrome oxidase 1 genes at the population, species, and genus levels. RUSS J GENET+ 2006. [DOI: 10.1134/s1022795406040016] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Revell LJ, Harmon LJ, Glor RE. Underparameterized model of sequence evolution leads to bias in the estimation of diversification rates from molecular phylogenies. Syst Biol 2006; 54:973-83. [PMID: 16385778 DOI: 10.1080/10635150500354647] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Affiliation(s)
- Liam J Revell
- Department of Biology, Campus Box 1229, Washington University, St. Louis, Missouri 63130, USA.
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40
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Adamowicz SJ, Purvis A. FROM MORE TO FEWER? TESTING AN ALLEGEDLY PERVASIVE TREND IN THE EVOLUTION OF MORPHOLOGICAL STRUCTURE. Evolution 2006. [DOI: 10.1554/05-358.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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41
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Macpherson E, Machordom A. Use of morphological and molecular data to identify three new sibling species of the genusMunidaLeach, 1820 (Crustacea, Decapoda, Galatheidae) from New Caledonia. J NAT HIST 2005. [DOI: 10.1080/00222930400002473] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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