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Courtney L Smith - One of the best experts on this subject based on the ideXlab platform.
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macroarray analysis of coelomocyte gene expression in response to lps in the sea urchin identification of unexpected immune diversity in an invertebrate
Physiological Genomics, 2005Co-Authors: Sham V Nair, Heather Del Valle, Paul S Gross, David P Terwilliger, Courtney L SmithAbstract:The purple sea urchin, Strongylocentrotus purpuratus, is a member of the phylum Echinodermata, which is basal to the phylum Chordata within the deuterostome lineage of the animal kingdom. This rela...
Jonathan V. Sweedler - One of the best experts on this subject based on the ideXlab platform.
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Exploring the Sea Urchin Neuropeptide Landscape by Mass Spectrometry
Journal of The American Society for Mass Spectrometry, 2018Co-Authors: Eric B. Monroe, Suresh P. Annangudi, Andinet A. Wadhams, Timothy A. Richmond, Ning Yang, Bruce R. Southey, Elena V. Romanova, Liliane Schoofs, Geert Baggerman, Jonathan V. SweedlerAbstract:Neuropeptides are essential cell-to-cell signaling messengers and serve important regulatory roles in animals. Although remarkable progress has been made in peptide identification across the Metazoa, for some phyla such as Echinodermata, limited neuropeptides are known and even fewer have been verified on the protein level. We employed peptidomic approaches using bioinformatics and mass spectrometry (MS) to experimentally confirm 23 prohormones and to characterize a new prohormone in nervous system tissue from Strongylocentrotus purpuratus , the purple sea urchin. Ninety-three distinct peptides from known and novel prohormones were detected with MS from extracts of the radial nerves, many of which are reported or experimentally confirmed here for the first time, representing a large-scale study of neuropeptides from the phylum Echinodermata. Many of the identified peptides and their precursor proteins have low homology to known prohormones from other species/phyla and are unique to the sea urchin. By pairing bioinformatics with MS, the capacity to characterize novel peptides and annotate prohormone genes is enhanced. Graphical Abstract
Gary M. Wessel - One of the best experts on this subject based on the ideXlab platform.
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Phylogenomic Analyses of Echinodermata Support the Sister Groups of Asterozoa and Echinozoa
PloS one, 2015Co-Authors: Adrian Reich, Casey W. Dunn, Koji Akasaka, Gary M. WesselAbstract:Echinoderms (sea urchins, sea stars, brittle stars, sea lilies and sea cucumbers) are a group of diverse organisms, second in number within deuterostome species to only the chordates. Echinoderms serve as excellent model systems for developmental biology due to their diverse developmental mechanisms, tractable laboratory use, and close phylogenetic distance to chordates. In addition, echinoderms are very well represented in the fossil record, including some larval features, making echinoderms a valuable system for studying evolutionary development. The internal relationships of Echinodermata have not been consistently supported across phylogenetic analyses, however, and this has hindered the study of other aspects of their biology. In order to test echinoderm phylogenetic relationships, we sequenced 23 de novo transcriptomes from all five clades of echinoderms. Using multiple phylogenetic methods at a variety of sampling depths we have constructed a well-supported phylogenetic tree of Echinodermata, including support for the sister groups of Asterozoa (sea stars and brittle stars) and Echinozoa (sea urchins and sea cucumbers). These results will help inform developmental and evolutionary studies specifically in echinoderms and deuterostomes in general.
Chantal Conand - One of the best experts on this subject based on the ideXlab platform.
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Diversity of the holothuroid fauna (Echinodermata) in La Réunion (Western Indian Ocean)
2009Co-Authors: Chantal Conand, François Michonneau, G. Paulay, J. Henrich BruggemannAbstract:Poster about Diversity of the holothuroid fauna (Echinodermata) in La Réunion (Western Indian Ocean)
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Sea cucumber retail market in Singapore
2001Co-Authors: Chantal ConandAbstract:Mashanov, V.S. and I. U. Dolmatov. 2000. Developmental morphology of a holothurian, Cucumaria japonica (Dendrochirota: Holothuroidea), a species with accelerated metamorphosis. Invertebrate Reproduction and Development. 37(2):137–146. McEuen, E.S. and F.-S. Chia. 1991. Development and metamorphosis of two Psolid sea cucumbers, Psolus chitonoides and Psolidium bullatum, with a review of reproductive patterns in the family Psolidae (Holothuroidea: Echinodermata). Mar. Biol. 109:267–279.
Sham V Nair - One of the best experts on this subject based on the ideXlab platform.
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macroarray analysis of coelomocyte gene expression in response to lps in the sea urchin identification of unexpected immune diversity in an invertebrate
Physiological Genomics, 2005Co-Authors: Sham V Nair, Heather Del Valle, Paul S Gross, David P Terwilliger, Courtney L SmithAbstract:The purple sea urchin, Strongylocentrotus purpuratus, is a member of the phylum Echinodermata, which is basal to the phylum Chordata within the deuterostome lineage of the animal kingdom. This rela...
