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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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| 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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| 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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| Helwerda, Renate A.. |
| The predatory behaviour of Poiretia snails is studied. One aspect of this behaviour is the ability to make holes in the shells of prey snails. The radula and the histology of the mucous glands support the assumption that Poiretia secretes acidic mucus to produce these holes. Observation of a Poiretia compressa (Mousson, 1859) specimen yielded the insight that its activities relied on the availability of moisture and not on light conditions. It preyed on a wide range of snail species, but only produced holes in shells when the aperture was blocked. It usually stabbed its prey with a quick motion of the radula. The time it spent feeding on a prey specimen is most likely correlated to prey size. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Predation; Predatorysnails; Drilling holes; Radula; Pedal gland; Sole gland; Acidic mucus. |
| Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/588032 |
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