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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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| Puillandre, N.; Bouchet, P.; Duda, T. F., Jr.; Kauferstein, S.; Kohn, A. J.; Olivera, B. M.; Watkins, M.; Meyer, C.. |
| We present a large-scale molecular phylogeny that includes 320 of the 761 recognized valid species of the cone snails (Conus), one of the most diverse groups of marine molluscs, based on three mitochondrial genes (COI, 16S rDNA and 12S rDNA). This is the first phylogeny of the taxon to employ concatenated sequences of several genes, and it includes more than twice as many species as the last published molecular phylogeny of the entire group nearly a decade ago. Most of the numerous molecular phylogenies published during the last 15 years are limited to rather small fractions of its species diversity. Bayesian and maximum likelihood analyses are mostly congruent and confirm the presence of three previously reported highly divergent lineages among cone... |
| Tipo: Text |
Palavras-chave: Ancestral state reconstruction; Conidae; Conus; COI; 16SrRNA; 12SrRNA. |
| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00468/57920/83480.pdf |
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