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| Registros recuperados: 21 | |
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| Lecointre, Guillaume; Ameziane, Nadia; Boisselier, Marie-catherine; Bonillo, Celine; Busson, Frederic; Causse, Romain; Chenuil, Anne; Couloux, Arnaud; Coutanceau, Jean-pierre; Cruaud, Corinne; D'Udekem D'Acoz, Cedric; De Ridder, Chantal; Denys, Gael; Dettai, Agnes; Duhamel, Guy; Eleaume, Marc; Feral, Jean-pierre; Gallut, Cyril; Havermans, Charlotte; Held, Christoph; Hemery, Lenaig; Lautredou, Anne-claire; Martin, Patrick; Ozouf-costaz, Catherine; Pierrat, Benjamin; Pruvost, Patrice; Puillandre, Nicolas; Samadi, Sarah; Saucede, Thomas; Schubart, Christoph; David, Bruno. |
| There has been a significant body of literature on species flock definition but not so much about practical means to appraise them. We here apply the five criteria of Eastman and McCune for detecting species flocks in four taxonomic components of the benthic fauna of the Antarctic shelf: teleost fishes, crinoids (feather stars), echinoids (sea urchins) and crustacean arthropods. Practical limitations led us to prioritize the three historical criteria (endemicity, monophyly, species richness) over the two ecological ones (ecological diversity and habitat dominance). We propose a new protocol which includes an iterative fine-tuning of the monophyly and endemicity criteria in order to discover unsuspected flocks. As a result nine "full" species flocks... |
| Tipo: Text |
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| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00296/40754/39754.pdf |
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| Thubaut, Justine; Puillandre, Nicolas; Faure, Baptiste; Cruaud, Corinne; Samadi, Sarah. |
| Bathymodiolinae are giant mussels that were discovered at hydrothermal vents and harboring chemosynthetic symbionts. Due to their close phylogenetic relationship with seep species and tiny mussels from organic substrates, it was hypothesized that they gradually evolved from shallow to deeper environments, and specialized in decaying organic remains, then in seeps, and finally colonized deep-sea vents. Here, we present a multigene phylogeny that reveals that most of the genera are polyphyletic and/or paraphyletic. The robustness of the phylogeny allows us to revise the genus-level classification. Organic remains are robustly supported as the ancestral habitat for Bathymodiolinae. However, rather than a single step toward colonization of vents and seeps,... |
| Tipo: Text |
Palavras-chave: Bathymodiolinae; Chemosynthetic ecosystem; Deep-sea; Evolution. |
| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00218/32957/31622.pdf |
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| Pante, Eric; Puillandre, Nicolas; Viricel, Amélia; Arnaud-haond, Sophie; Aurelle, Didier; Castelin, Magalie; Chenuil, Anne; Destombe, Christophe; Forcioli, Didier; Valero, Myriam; Viard, Frederique; Samadi, Sarah. |
| Connectivity among populations determines the dynamics and evolution of populations, and its assessment is essential in ecology in general and in conservation biology in particular. The robust basis of any ecological study is the accurate delimitation of evolutionary units, such as populations, metapopulations and species. Yet a disconnect still persists between the work of taxonomists describing species as working hypotheses and the use of species delimitation by molecular ecologists interested in describing patterns of gene flow. This problem is particularly acute in the marine environment where the inventory of biodiversity is relatively delayed, while for the past two decades, molecular studies have shown a high prevalence of cryptic species. In this... |
| Tipo: Text |
Palavras-chave: Connectivity; Marine organisms; Molecular systematics; Taxonomy. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00248/35952/35301.pdf |
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| Samadi, Sarah; Puillandre, Nicolas; Pante, Eric; Boisselier, Marie-catherine; Corbari, Laure; Chen, Wei-jen; Maestrati, Philippe; Mana, Ralph; Thubaut, Justine; Zuccon, Dario; Hourdez, Stephane. |
| The deep-sea part of the ‘Papua Niugini Biodiversity Expedition’ surveyed the deep-sea environments along the coasts of New Guinea Island in the Bismarck Sea, from the Vitiaz Strait to the border between Papua New Guinea (PNG) and Irian Jaya. This expedition was a follow-up of the BIOPAPUA cruise (2010) that gave some of the first insights into the diversity of the deep-sea fauna of the Bismarck and Solomon Seas for environments other than deep-sea hydrothermal vents. The main aims of the cruise were to survey the diversity of the fauna of (i) hard bottoms that are typically found on deep seamounts, (ii) Astrolabe Bay from 200 m to about 1000 m, (iii) the chemosynthetic environments of the deep sea, including cold-seep environments and plant debris.... |
| Tipo: Text |
Palavras-chave: Bathymodiolinae; Cold-seep; Deep-sea; Siboglinidae. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00276/38703/37210.pdf |
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| Duperron, Sebastien; Pottier, Marie-anne; Leger, Nelly; Gaudron, Sylvie M.; Puillandre, Nicolas; Le Prieur, Stephanie; Sigwart, Julia D.; Ravaux, Juliette; Zbinden, Magali. |
| Although most chitons (Mollusca: Polyplacophora) are shallow-water molluscs, diverse species also occur in deep-sea habitats. We investigated the feeding strategies of two species, Leptochiton boucheti and Nierstraszella lineata, recovered on sunken wood sampled in the western Pacific, close to the Vanuatu Islands. The two species display distinctly different associations with bacterial partners. Leptochiton boucheti harbours Mollicutes in regions of its gut epithelium and has no abundant bacterium associated with its gill. Nierstraszella lineata displays no dense gut-associated bacteria, but harbours bacterial filaments attached to its gill epithelium, related to the Deltaproteobacteria symbionts found in gills of the wood-eating limpet Pectinodonta sp.... |
| Tipo: Text |
Palavras-chave: Sunken wood; Polyplacophora; Symbiosis; Mollicutes; Deltaproteobacteria; Deep-sea ecology. |
| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00138/24933/23035.pdf |
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| Modica, Maria Vittoria; Puillandre, Nicolas; Castelin, Magalie; Zhang, Yu; Holford, Mande. |
| Devising a reproducible approach for species delimitation of hyperdiverse groups is an ongoing challenge in evolutionary biology. Speciation processes combine modes of passive and adaptive trait divergence requiring an integrative taxonomy approach to accurately generate robust species hypotheses. However, in light of the rapid decline of diversity on Earth, complete integrative approaches may not be practical in certain species-rich environments. As an alternative, we applied a two-step strategy combining ABGD (Automated Barcode Gap Discovery) and Klee diagrams, to balance speed and accuracy in producing primary species hypotheses (PSHs). Specifically, an ABGD/Klee approach was used for species delimitation in the Terebridae, a neurotoxin-producing marine... |
| Tipo: Text |
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| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00468/57921/60282.pdf |
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| Holford, Mande; Puillandre, Nicolas; Terryn, Yves; Cruaud, Corinne; Olivera, Baldomero; Bouchet, Philippe. |
| Toxoglossate marine gastropods, traditionally assigned to the families Conidae, Terebridae, and Turridae, are one of the most populous animal groups that use venom to capture their prey. These marine animals are generally characterized by a venom apparatus that consists of a muscular venom bulb and a tubular venom gland. The toxoglossan radula, often compared with a hypodermic needle for its use as a conduit to inject toxins into prey, is considered a major anatomical breakthrough that assisted in the successful initial radiation of these animals in the Cretaceous and early Tertiary. The pharmacological success of toxins from cone snails has made this group a star among biochemists and neuroscientists, but very little is known about toxins from the other... |
| Tipo: Text |
Palavras-chave: Life history similarities; Similar proboscis type; Morphology; Biology; Peptides; Radula. |
| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00207/31788/30197.pdf |
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| Fedosov, Alexander; Puillandre, Nicolas; Kantor, Yuri; Bouchet, Philippe. |
| With about 800 Recent species, 'miters' are a widely distributed group of tropical and subtropical gastropods that are most diverse in the Indo-West Pacific. They include the two families Mitridae and Costellariidae, similar in shell morphology and traditionally treated as close relatives. Some genera of deep-water Ptychatractidae and Volutomitridae are close to miters in shell morphology, and the term 'mitriform gastropods' has been introduced to refer to Mitridae, Costellariidae, and this assortment of convergent forms. The present study aimed at the reconstruction of phylogenetic relationships of mitriform gastropods based on representative taxon sampling. Four genetic markers [cytochrome c oxidase subunit I (COI), 16S and 12S rRNA mitochondrial genes,... |
| Tipo: Text |
Palavras-chave: Costellariidae; Marine molluscs; Mitra; Mitridae; Ptychatractidae; Radula; Vexillum; Volutomitridae. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00476/58810/61353.pdf |
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| Sanders, Malcolm T.; Merle, Didier; Bouchet, Philippe; Castelin, Magalie; Beu, Alan G.; Samadi, Sarah; Puillandre, Nicolas. |
| Bursa granularis (Roding, 1798) is a tonnoidean gastropod that is regarded as broadly distributed throughout the Indo-Pacific and tropical western Atlantic. Because of its variable shell it has received no less than thirteen names, now all synonymized under the name B. granularis. We sequenced a fragment of the cox1 gene for 82 specimens covering a large part of its distribution and most type localities. Two delimitation methods were applied, one based on genetic distance (ABGD) and one based on phylogenetic trees (GMYC). All analyses suggest that specimens identified as B. granularis comprise four distinct species: one limited to the tropical western Atlantic, another to southwestern Western Australia and two in the Indo-Pacific (from the Red Sea to the... |
| Tipo: Text |
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| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00476/58800/61531.pdf |
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| Castelin, M.; Puillandre, Nicolas; Kantor, Yu. I.; Modica, M. V.; Terryn, Y.; Cruaud, C.; Bouchet, P.; Holford, M.. |
| The Terebridae are a diverse family of tropical and subtropical marine gastropods that use a complex and modular venom apparatus to produce toxins that capture polychaete and enteropneust preys. The complexity of the terebrid venom apparatus suggests that venom apparatus development in the Terebridae could be linked to the diversification of the group and can be analyzed within a molecular phylogenetic scaffold to better understand terebrid evolution. Presented here is a molecular phylogeny of 89 terebrid species belonging to 12 of the 15 currently accepted genera, based on Bayesian inference and Maximum Likelihood analyses of amplicons of 3 mitochondrial (COI, 16S and 12S) and one nuclear (28S) genes. The evolution of the anatomy of the terebrid venom... |
| Tipo: Text |
Palavras-chave: Character evolution; Key innovations; Predator-prey system; Radula; Teretoxins; Peptide toxins. |
| Ano: 2012 |
URL: https://archimer.ifremer.fr/doc/00140/25117/82434.pdf |
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| Holford, Mande; Puillandre, Nicolas; Modica, Maria Vittoria; Watkins, Maren; Collin, Rachel; Bermingham, Eldredge; Olivera, Baldomero M.. |
| Central to the discovery of neuroactive compounds produced by predatory marine snails of the superfamily Conoidea (cone snails, terebrids, and turrids) is identifying those species with a venom apparatus. Previous analyses of western Pacific terebrid specimens has shown that some Terebridae groups have secondarily lost their venom apparatus. In order to efficiently characterize terebrid toxins, it is essential to devise a key for identifying which species have a venom apparatus. The findings presented here integrate molecular phylogeny and the evolution of character traits to infer the presence or absence of the venom apparatus in the Terebridae. Using a combined dataset of 156 western and 33 eastern Pacific terebrid samples, a phylogenetic tree was... |
| Tipo: Text |
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| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00467/57840/60112.pdf |
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| Puillandre, Nicolas; Meyer, Christopher P.; Bouchet, Philippe; Olivera, Baldomero M.. |
| Genetic divergence and geographical variation in the deep-water Conus orbignyi complex (Mollusca: Conoidea). - Zoologica Scripta, 40, 350-363. The cone snails (family Conidae) are a hyperdiverse lineage of venomous gastropods. Two standard markers, COI and ITS2, were used to define six genetically divergent groups within a subclade of Conidae that includes Conus orbignyi; each of these was then evaluated based on their shell morphology. We conclude that three forms, previously regarded as subspecies of C. orbignyi are distinct species, now recognized as C. orbignyi, C. elokismenos and C. coriolisi. In addition, three additional species (C. pseudorbignyi, C. joliveti and C. comatosa) belong to this clade. Some of the proposed species (e. g. C. elokismenos)... |
| Tipo: Text |
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| Ano: 2011 |
URL: https://archimer.ifremer.fr/doc/00138/24939/23028.pdf |
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| Tenorio, Manuel J.; Monnier, Eric; Puillandre, Nicolas. |
| Although cone snails are among the most studied group of gastropods, new species are still regularly described. Here, we focus on Afonsoconus Tucker & Tenorio, 2013, a lineage that includes only two species from the Indo-Pacific Ocean. The analysis of molecular (partial mitochondrial cox1 gene sequences) and morphological (shell and radular tooth) characters revealed that the samples collected by dredging in deep water during a recent expedition carried out in the Mozambique Channel are different from the samples collected in the Pacific Ocean. We thus introduce here a new species, Afonsoconus crosnieri sp. nov., from the SW Indian Ocean including records from the Mozambique Channel, the Comoros and Glorieuses Islands, Madagascar, South Africa and... |
| Tipo: Text |
Palavras-chave: Mitochondrial cox1 gene; Conidae; Afonsoconus; South-West Indian Ocean. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00465/57663/59859.pdf |
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| Fassio, Giulia; Modica, Maria Vittoria; Mary, Lou; Zaharias, Paul; Fedosov, Alexander E.; Gorson, Juliette; Kantor, Yuri I.; Holford, Mandё; Puillandre, Nicolas. |
| Profundiconus is the most divergent cone snail genus and its unique phylogenetic position, sister to the rest of the family Conidae, makes it a key taxon for examining venom evolution and diversity. Venom gland and foot transcriptomes of Profundiconus cf. vaubani and Profundiconus neocaledonicus were de novo assembled, annotated, and analyzed for differential expression. One hundred and thirty-seven venom components were identified from P. cf. vaubani and 82 from P. neocaledonicus, with only four shared by both species. The majority of the transcript diversity was composed of putative peptides, including conotoxins, profunditoxins, turripeptides, insulin, and prohormone-4. However, there were also a significant percentage of other putative venom components... |
| Tipo: Text |
Palavras-chave: Conidae; Conotoxins; Turripeptides; Transcriptome; Venom gland. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00589/70155/68142.pdf |
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| Zaharias, Paul; Kantor, Yuri, I; Fedosov, Alexander E.; Criscione, Francesco; Hallan, Anders; Kano, Yasunori; Bardin, Jeremie; Puillandre, Nicolas. |
| The practice of species delimitation using molecular data commonly leads to the revealing of species complexes and an increase in the number of delimited species. In a few instances, however, DNA-based taxonomy has led to lumping together of previously described species. Here, we delimit species in the genus Cryptogemma (Gastropoda: Conoidea: Turridae), a group of deep-sea snails with a wide geographical distribution, primarily by using the mitochondrial COI gene. Three approaches of species delimitation (ABGD, mPTP and GMYC) were applied to define species partitions. All approaches resulted in eight species. According to previous taxonomic studies and shell morphology, 23 available names potentially apply to the eight Cryptogemma species that were... |
| Tipo: Text |
Palavras-chave: Species delimitation; Species description; ABGD; GMYC; PTP; Deep-sea species; Larval dispersal; Cosmopolitan species. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00688/79988/82966.pdf |
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| Puillandre, Nicolas; Tenorio, Manuel J.. |
| Molecular phylogenies of cone snails have revealed that the c. 350 sequenced species are divided into four main lineages, Conus, Conasprella, Californiconus and Profundiconus. In a recent study, minute species (less than 8 mm) were for the first time included in a molecular phylogenetic tree and were shown to correspond to deep lineages, of similar status to the four previously recognized, and sister group to Californiconus. They were attributed to the available generic names Lilliconus and Pseudolilliconus. In this article, we analyse, using morphological (shell and radula) and molecular characters (cox1 gene), several species of minute cone snails, and we conclude that the species considered as Pseudolilliconus in the previous study should actually be... |
| Tipo: Text |
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| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00476/58802/61529.pdf |
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| Fedosov, Alexander E.; Malcolm, Gavin; Terryn, Yves; Gorson, Juliette; Modica, Maria Vittoria; Holford, Mande; Puillandre, Nicolas. |
| The conoidean family Terebridae is an intriguing lineage of marine gastropods, which are of considerable interest due to their varied anatomy and complex venoms. Terebrids are abundant, easily recognizable and widely distributed in tropical and subtropical waters, but our findings have demonstrated that their systematics requires revision. Here we elaborate the classification of Terebridae based on a recently published molecular phylogeny of 154 species, plus characters of the shell and anterior alimentary system. The 407 living species of the family, including seven species described herein, are assigned to three subfamilies: Pellifroniinae new subfamily, Pervicaciinae and Terebrinae. The Pellifroniinae comprises five deep -water species in two genera,... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00620/73228/72936.pdf |
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| Kantor, Yuri I.; Strong, Ellen E.; Puillandre, Nicolas. |
| The hyperdiverse group of venomous Conoidea has eluded attempts to construct a robust and stable classification owing to the absence of a robust and stable phylogenetic framework. New molecular data have greatly enhanced our understanding of conoidean evolution, allowing the construction of a new family-level classification. This expanding framework has also allowed the discovery of several independent lineages that merit recognition at familial rank. One of these, based on seven specimens collected over more than 20 years from deep waters off New Caledonia, represents a unique, monotypic lineage closely related to Mitromorphidae, which we here name as the new family Bouchetispiridae. This new lineage bears a unique combination of teleoconch, protoconch... |
| Tipo: Text |
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| Ano: 2012 |
URL: https://archimer.ifremer.fr/doc/00140/25143/23251.pdf |
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| Kantor, Yuri I.; Stahlschmidt, Peter; Aznar-cormano, Laetitia; Bouchet, Philippe; Puillandre, Nicolas. |
| Crassispira cerithina (Anton, 1838) is a common shallow water conoidean gastropod species, broadly distributed throughout the Indo-West Pacific. It has a distinctive shell morphology and has been referred to in many publications. It is also the first species of its family to have been studied from the viewpoint of toxinology. However, our molecular phylogenetic analysis based on fragments of the COI and 28 S rRNA genes reveals the existence of two closely related distinct species, one of which is described as new (C. scala n. sp.). These two species are sympatric in several regions of the Indo-Pacific-in the Philippines, Papua New Guinea, Vanuatu and New Caledonia. They can be reliably distinguished by shell morphology and thus cannot be considered truly... |
| Tipo: Text |
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| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00479/59034/61658.pdf |
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| Registros recuperados: 21 | |
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