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https://www.readbyqxmd.com/read/27470793/a-new-deep-water-astyris-species-buccinoidea-columbellidae-from-the-southeastern-pacific
#1
Juan Francisco Araya, Ricardo Catalán, Juan Antonio Aliaga
Marine mollusks from northern Chile and from the Región de Atacama in particular have been sparsely documented, and only a few works have reviewed the area (see Araya & Araya, 2015; Labrín et al. 2015; Araya & Valdés 2016). Mollusks from deep water and offshore areas are one of the least known groups and, apart from some classic works from the 19th century, only McLean (1970), Bernard (1983), Véliz and Vásquez (2000), Fraussen & Haddorn (2000), Houart (2003), Vilvens & Sellanes (2010), and Araya (2013) have included deep-water molluscan species from northern Chile...
2016: Zootaxa
https://www.readbyqxmd.com/read/27453093/occurrence-bioaccumulation-and-long-range-transport-of-short-chain-chlorinated-paraffins-on-the-fildes-peninsula-at-king-george-island-antarctica
#2
Huijuan Li, Jianjie Fu, Aiqian Zhang, Qinghua Zhang, Yawei Wang
As a candidate persistent organic pollutant of the Stockholm Convention, short-chain chlorinated paraffins (SCCPs) have recently received particular attention. In this study, we investigated, for the first time, the concentrations of SCCPs in biota samples collected from the Fildes Peninsula at King George Island and Ardley Island, Antarctica. The concentrations of SCCPs ranged from 3.5 to 256.6ng/g (dry weight, dw), with a mean of 76.6±61.8ng/g dw, which was lower than those detected in mid- and low-latitude regions...
September 2016: Environment International
https://www.readbyqxmd.com/read/27158871/the-complete-mitochondrial-genome-of-babylonia-borneensis-gastropoda-neogastropoda-buccinidae
#3
Chia-Hsuan Sung, Chen-Te Tseng, Liang-Jong Wang, Yu-Chi Li, Jenn-Kan Lu
The complete mitochondrial genome sequence of the Babylonia borneensis is reported for the first time in this study. The length of genome was 15 556 bp, including 13 protein-coding genes, 2 ribosomal RNA genes and 22 transfer RNA genes. The nucleotide composition of the mitogenome showed AT-rich feature, with the AT content of 68.2%. Comparison of the identity of the B. borneensis mitogenome with B. areolata, B. lani and B. lutosa was 87.5%, 87.4% and 86.9%, respectively. The construction of phylogenetic tree showed high bootstrap support value...
September 2016: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
https://www.readbyqxmd.com/read/27033950/a-multilocus-molecular-phylogeny-of-fasciolariidae-neogastropoda-buccinoidea
#4
Diogo R Couto, Philippe Bouchet, Yuri I Kantor, Luiz R L Simone, Gonzalo Giribet
The neogastropod family Fasciolariidae Gray, 1853 - tulips, horse-conchs, spindles, etc., comprises important representatives of tropical and subtropical molluscan assemblages, with over 500 species in the subfamilies Fasciolariinae Gray, 1853, Fusininae Wrigley, 1927 and Peristerniinae Tryon, 1880. Fasciolariids have had a rather complicated taxonomical history, with several genus names for a long time used as waste baskets to group many unrelated species; based on shell characters, recent taxonomic revisions have, however, began to set some order in its taxonomy...
June 2016: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/26840497/green-fluorescence-of-cytaeis-hydroids-living-in-association-with-nassarius-gastropods-in-the-red-sea
#5
Andrey A Prudkovsky, Viatcheslav N Ivanenko, Mikhail A Nikitin, Konstantin A Lukyanov, Anna Belousova, James D Reimer, Michael L Berumen
Green Fluorescent Proteins (GFPs) have been reported from a wide diversity of medusae, but only a few observations of green fluorescence have been reported for hydroid colonies. In this study, we report on fluorescence displayed by hydroid polyps of the genus Cytaeis Eschscholtz, 1829 (Hydrozoa: Anthoathecata: Filifera) found at night time in the southern Red Sea (Saudi Arabia) living on shells of the gastropod Nassarius margaritifer (Dunker, 1847) (Neogastropoda: Buccinoidea: Nassariidae). We examined the fluorescence of these polyps and compare with previously reported data...
2016: PloS One
https://www.readbyqxmd.com/read/26598642/multistep-fractionation-and-mass-spectrometry-reveal-zwitterionic-and-anionic-modifications-of-the-n-and-o-glycans-of-a-marine-snail
#6
Barbara Eckmair, Chunsheng Jin, Daniel Abed-Navandi, Katharina Paschinger
Various studies in the past have revealed that molluscs can produce a wide range of rather complex N-glycan structures, which vary from those occurring in other invertebrate animals; particularly methylated glycans have been found in gastropods, and there are some reports of anionic glycans in bivalves. Due to the high variability in terms of previously described structures and methodologies, it is a major challenge to establish glycomic workflows that yield the maximum amount of detailed structural information from relatively low quantities of sample...
February 2016: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/26250211/leleshusia-a-new-replacement-name-for-granulina-leleshus-1975-anthozoa-heliolitoidea-nec-jousseaume-1888-gastropoda-neogastropoda-marginellidae
#7
LETTER
Alexander B Doweld
The genus Granulina (type species Plasmoporella granulosa Bondarenko, 1958, by original designation) was established by Leleshus (1975: 7) for a distinctive heliolitoid genus from the Upper Ordovician of Kazakhstan and Tajikistan. However, the name Granulina Jousseaume, 1888 (p. 191), which designates a genus of a living molluscs (Gastropoda: Neogastropoda: Marginellidae: Granulininae), has priority over the fossil generic name, which is its junior homonym.
July 21, 2015: Zootaxa
https://www.readbyqxmd.com/read/26249395/silvio-felipe-barbosa-lima-carmen-regina-parisotto-guimar%C3%A3-es-%C3%A2-2015-new-bathyal-anachis-neogastropoda-buccinoidea-columbellidae-from-the-southwestern-atlantic-and-the-designation-of-a-lectotype-for-a-stricta-watson-1882-zootaxa-3949-3-445-450
#8
https://www.readbyqxmd.com/read/26220836/caenogastropod-mitogenomics
#9
David Osca, José Templado, Rafael Zardoya
In order to further resolve the phylogenetic relationships within Caenogastropoda, the complete mitochondrial (mt) genomes of Cochlostoma hidalgoi (Cyclophoroidea), Naticarius hebraeus (Naticoidea), Galeodea echinophora (Tonnoidea), and Columbella adansoni (Buccinoidea), and the partial mt genome of Erosaria spurca (Cypraeoidea) were sequenced. All newly determined mt genomes conformed to the consensus gene order of caenogastropods, except that of C. hidalgoi, which differed in the relative positions of the trnD, trnQ, trnG, trnY, and trnT genes...
December 2015: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/26057007/the-complete-mitochondrial-genome-of-conus-tulipa-neogastropoda-conidae
#10
Po-Wei Chen, Sheng-Tai Hsiao, Chih-Wei Huang, Kao-Sung Chen, Chen-Te Tseng, Wen-Lung Wu, Deng-Fwu Hwang
The complete mitogenome sequence of the cone snail Conus tulipa (Linnaeus, 1758) has been sequenced by next-generation sequencing method. The assembled mitogenome is 16,599 bp in length, including 13 protein-coding genes, 22 transfer RNA genes and 2 ribosomal RNA genes. The overall base composition of C. tulipa is 28.7% A, 15.2% C, 18.4% G and 37.7% T. It shows 81.1% identity to the cone snail C. consors, 78.5% to C. borgesi and 77.5% to C. textile. Using the 13 protein-coding genes and 2 ribosomal RNA genes of C...
July 2016: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
https://www.readbyqxmd.com/read/26054852/the-venomous-cocktail-of-the-vampire-snail-colubraria-reticulata-mollusca-gastropoda
#11
Maria Vittoria Modica, Fabrizio Lombardo, Paolo Franchini, Marco Oliverio
BACKGROUND: Hematophagy arose independently multiple times during metazoan evolution, with several lineages of vampire animals particularly diversified in invertebrates. However, the biochemistry of hematophagy has been studied in a few species of direct medical interest and is still underdeveloped in most invertebrates, as in general is the study of venom toxins. In cone snails, leeches, arthropods and snakes, the strong target specificity of venom toxins uniquely aligns them to industrial and academic pursuits (pharmacological applications, pest control etc...
2015: BMC Genomics
https://www.readbyqxmd.com/read/25947819/new-bathyal-anachis-neogastropoda-buccinoidea-columbellidae-from-the-southwestern-atlantic-and-the-designation-of-a-lectotype-for%C3%A2-a-stricta-watson-1882
#12
LETTER
Silvio Felipe Barbosa Lima, Carmen Regina Parisotto Guimarães
No abstract text is available yet for this article.
April 29, 2015: Zootaxa
https://www.readbyqxmd.com/read/25543802/a-review-of-the-polystira-clade-the-neotropic-s-largest-marine-gastropod-radiation-neogastropoda-conoidea-turridae-sensu-stricto
#13
Jonathan A Todd, Timothy A Rawlings
The Polystira clade (here comprising Polystira and Pleuroliria) is a poorly known but hyper-diverse clade within the neogastropod family Turridae (sensu stricto). It has extensively radiated within the tropics and subtropics of the Americas, to which it is endemic. In this paper we present a synthetic overview of existing information on this radiation together with new information on estimated species diversity, systematic relationships, a species-level molecular phylogenetic analysis and preliminary macroecological and diversification analyses, to serve as a platform for further study...
2014: Zootaxa
https://www.readbyqxmd.com/read/25526660/gross-mismatch-between-thermal-tolerances-and-environmental-temperatures-in-a-tropical-freshwater-snail-climate-warming-and-evolutionary-implications
#14
Gianluca Polgar, Tsung Fei Khang, Teddy Chua, David J Marshall
The relationship between acute thermal tolerance and habitat temperature in ectotherm animals informs about their thermal adaptation and is used to assess thermal safety margins and sensitivity to climate warming. We studied this relationship in an equatorial freshwater snail (Clea nigricans), belonging to a predominantly marine gastropod lineage (Neogastropoda, Buccinidae). We found that tolerance of heating and cooling exceeded average daily maximum and minimum temperatures, by roughly 20°C in each case...
January 2015: Journal of Thermal Biology
https://www.readbyqxmd.com/read/25493546/the-early-origin-of-the-antarctic-marine-fauna-and-its-evolutionary-implications
#15
J Alistair Crame, Alan G Beu, Jon R Ineson, Jane E Francis, Rowan J Whittle, Vanessa C Bowman
The extensive Late Cretaceous - Early Paleogene sedimentary succession of Seymour Island, N.E. Antarctic Peninsula offers an unparalleled opportunity to examine the evolutionary origins of a modern polar marine fauna. Some 38 modern Southern Ocean molluscan genera (26 gastropods and 12 bivalves), representing approximately 18% of the total modern benthic molluscan fauna, can now be traced back through at least part of this sequence. As noted elsewhere in the world, the balance of the molluscan fauna changes sharply across the Cretaceous - Paleogene (K/Pg) boundary, with gastropods subsequently becoming more diverse than bivalves...
2014: PloS One
https://www.readbyqxmd.com/read/24869692/lost-and-found-the-eocene-family-pyramimitridae-neogastropoda-discovered-in-the-recent-fauna-of-the-indo-pacific
#16
Yuri Kantor, Pierre Lozouet, Nicolas Puillandre, Philippe Bouchet
Most neogastropod families have a continuous record from the Cretaceous or Paleogene to the Recent. However, the fossil record also contains a number of obscure nominal families with unusual shell characters that are not adequately placed in the current classification. Some of these are traditionally regarded as valid, and some have been "lost" in synonymy. One such "lost" family is the Pyramimitridae, established by Cossmann in 1901 for the Eocene genus Pyramimitra, and currently included in the synonymy of Buccinidae...
2014: Zootaxa
https://www.readbyqxmd.com/read/23342090/early-cenozoic-differentiation-of-polar-marine-faunas
#17
J Alistair Crame
The widespread assumption that the origin of polar marine faunas is linked to the onset of major global cooling in the Late Eocene-Early Oligocene is being increasingly challenged. The Antarctic fossil record in particular is suggesting that some modern Southern Ocean taxa may have Early Eocene or even Paleocene origins, i.e. well within the Early Cenozoic greenhouse world. A global analysis of one of the largest marine clades at the present day, the Neogastropoda, indicates that not only is there a decrease in the number of species from the tropics to the poles but also a decrease in the evenness of their distribution...
2013: PloS One
https://www.readbyqxmd.com/read/22042436/metamorphic-remodeling-of-a-planktotrophic-larva-to-produce-the-predatory-feeding-system-of-a-cone-snail-mollusca-neogastropoda
#18
Louise R Page
I used histological sections and 3D reconstructions to document development through metamorphosis of the foregut and proboscis in the conoidean neogastropod Conus lividus. A goal was to determine how highly derived features of the post-metamorphic feeding system of this gastropod predator develop without interfering with larval structures for microherbivory. A second goal was to compare foregut development in this conoidean with previous observations on foregut development in the buccinoidean neogastropod Nassarius mendicus...
October 2011: Biological Bulletin
https://www.readbyqxmd.com/read/22039517/comparing-the-usefulness-of-distance-monophyly-and-character-based-dna-barcoding-methods-in-species-identification-a-case-study-of-neogastropoda
#19
COMPARATIVE STUDY
Shanmei Zou, Qi Li, Lingfeng Kong, Hong Yu, Xiaodong Zheng
BACKGROUND: DNA barcoding has recently been proposed as a promising tool for the rapid species identification in a wide range of animal taxa. Two broad methods (distance and monophyly-based methods) have been used. One method is based on degree of DNA sequence variation within and between species while another method requires the recovery of species as discrete clades (monophyly) on a phylogenetic tree. Nevertheless, some issues complicate the use of both methods. A recently applied new technique, the character-based DNA barcode method, however, characterizes species through a unique combination of diagnostic characters...
2011: PloS One
https://www.readbyqxmd.com/read/21821137/additional-gene-data-and-increased-sampling-give-new-insights-into-the-phylogenetic-relationships-of-neogastropoda-within-the-caenogastropod-phylogenetic-framework
#20
Shanmei Zou, Qi Li, Lingfeng Kong
Neogastropoda, a highly diversified group of predatory marine snails, has often been contradicted in molecular phylogenetic studies. This is partly the consequence of limited neogastropod taxa or outgroups analyzed or insufficient gene sequences employed. This paper reports the most extensive molecular study of the group published to date with increased neogastropod taxa, multiple representatives of caenogastropod outgroups, and additional gene sequences. Data were collected from the entire 18S rRNA, histone H3, and three partial mitochondrial genes...
November 2011: Molecular Phylogenetics and Evolution
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