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  • Open Access English
    Authors: 
    Gregoric, D. E. Gutiérrez; Daglio, E. D.; De Lucía, M.; Robinson, D. G.; Darrigran, G.;
    Publisher: Zenodo
    Country: Argentina

    Commercial plant nurseries may serve as causes of dispersal of land snails and slugs (native and non-native) through the trade of plants and the related transport of eggs and small individuals that may pass unnoticed. Studies on the possible role of plant nurseries as a potential cause of dispersal of slugs in South America are lacking. To explore the role of garden centers, we collected and identified slugs in 12 commercial nurseries in two cities in the province of Buenos Aires, Argentina. Eight species of slugs were found. Based on our findings we validate the existence of Deroceras laeve and Belocaulus angustipes for Argentina and confirm the existence of Ambigolimax valentianus, which was recently cited for Argentina. We recommend that plant nurseries be regularly monitored given that snail and slug species are accidentally spread through trade in plants. {"references": ["Guti\u00e9rrez Gregoric, D. E., Daglio, E. D., de Luc\u00eda, M., Robinson, D. G., Darrigran, G., 2020. Land slugs in plant nurseries, a potential cause of dispersal in Argentina. Arxius de Miscel\u2022l\u00e0nia Zool\u00f2gica, 18, https://doi.org/10.32800/amz.2020.18.0173"]} Dataset: Taxonomic information, collection lots for each species deposited in the Malacological Collection of La Plata Museum, number of individuals per lot deposited, coordinates of the nurseries, and date of collection.

  • Open Access English
    Authors: 
    Gao, Shang; Rosales, H. D.; Albarracín, F. A. Gómez; Tsurkan, Vladimir; Kaur, Guratinder; Fennell, Tom; Steffens, Paul; Boehm, Martin; Čermák, Petr; Schneidewind, Astrid; +4 more
    Publisher: Zenodo
    Country: Argentina

    Data for: Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings. Instituto de Física de Líquidos y Sistemas Biológicos Facultad de Ciencias Exactas Facultad de Ingeniería

  • Open Access Spanish; Castilian
    Authors: 
    Palacio, Facundo; Siepielski, Adam; Lacoretz, Mariela; Ordano, Mariano;
    Country: Argentina

    Every organism on Earth must cope with a multitude of species interactions both directly and indirectly throughout its life cycle. However, how selection from multiple species occupying different trophic levels affects diffuse mutualisms has received little attention. As a result, how a given species amalgamates the combined effects of selection from multiple mutualists and antagonists to enhance its own fitness remains little understood. We investigated how multispecies interactions (frugivorous birds, ants, fruit flies, and parasitoid wasps) generate selection on fruit display traits in a seed dispersal mutualism. We used structural equation models to assess whether seed dispersers (frugivorous birds and ants) exerted phenotypic selection on fruit and seed traits in the Spiny Hackberry (Celtis ehrenbergiana), a fleshy-fruited tree, and how these selection regimes were influenced by fruit fly infestation and wasp parasitoidism levels. Birds exerted negative correlational selection on the combination of fruit crop size and mean seed weight, favoring either large crops with small seeds or small crops with large seeds. Parasitoids selected plants with higher fruit fly infestation levels, and fruit flies exerted positive directional selection on fruit size, which was positively correlated with seed weight. Therefore, higher parasitoidism indirectly correlated with higher plant fitness through increased bird fruit removal. In addition, ants exerted negative directional selection on mean seed weight. Our results show that strong selection on phenotypic traits may still arise in perceived diffuse species interactions. Overall, we emphasize the need to consider diverse direct and indirect partners to achieve a better understanding of the mechanisms driving phenotypic trait evolution in multispecies interactions. Cafeteria experiment of ant fruit and seed removal See README file for a description of the content of all datafiles. Celtis_piecewiseSEM.csv Missing data are labeled as 'NA'. Selection exerted by birds and ants on Spiny Hackberry fruits, shaped by fruit fly infestation and parasitoidism See README file for a description of the content of all datafiles. Ant_removal_experiment.csv Missing data are labeled as 'NA'. Dataset used to analyze the ant fruit and seed removal experiment and to fit piecewise structural equation models

  • Open Access English
    Authors: 
    Andre Sanz-Veiga, Priscila; Ré Jorge, Leonardo; Benitez-Vieyra, Santiago; W Amorim, Felipe;
    Publisher: Zenodo
    Country: Argentina

    This dataset describes the number of flowers, fruits and seed set of Tocoyena formosa in branches exposed (control) and isolated (ant exclusion) from ants, as well as the visiting ants and seed predators reared from fruits collected from both treatments. Fil: Andre Sanz-Veiga, Priscila. Universidade Estadual Paulista. Instituto de Biociências. Laboratório de ecologia de polinização e interação; Brasil. Fil: Ré, Jorge Leonardo. Universidade Estadual de Campinas. Departamento de Biología Animal; Brasil. Fil: Benítez Vieyra, Santiago. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Fil: Benítez Vieyra, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Multidisciplinario de Biología Vegetal; Argentina. Fil: W Amorim, Felipe. Universidade Estadual Paulista. Instituto de Biociências. Laboratório de ecologia de polinização e interação; Brasil.

  • Open Access English
    Authors: 
    Carignano, Ana Paula; Carignano, Ana; Echevarría, Javier; Zavattieri, Ana;
    Publisher: Dryad
    Country: Argentina

    Several hundreds of carapaces and a few valves were picked under a Nikon SMZ645 stereomicroscope from a single sample. Selected specimens were mounted on stubs using carbon conductive adhesive tape, gold coated and scanned with a JEOL JSM-6360LV Scanning Electron Microscope (SEM) at the Servicio de Microscopía Electrónica del Museo de La Plata, La Plata city, Argentina. After examination under SEM, a total of 167 specimens were retained for study regarding their preservation, mainly those with undeformed dorsal and/or lateral outlines. Length, height, and width for carapaces were measured on SEM images. A geometric morphometric analysis, following the procedures outlined by Zelditch et al. (2004), was performed on the SEM photographs on both dorsal and lateral left views of the carapaces. For the dorsal view, two landmarks were established: 1) the anterior most and 2) the posterior most points of valves contact. The outline for each valve was characterized by a 100 points curve including both landmarks. The anterior most point of the carapace was defined as initial point for the outline on lateral view of the carapace, which was characterized by 200 points. Data was standardized for position, size and rotational differences by means of a generalized least squares Procrustes superposition (Zelditch et al. 2004, p. 113–119). Logarithm with base 10 of Centroid Size—log(CS)—was used as size estimator for all the analyses that required it (Zelditch et al. 2004, p. 78). Digitization of the landmark configurations was performed on TPSdig2.12 (Rohlf 2008), and a Procrustes superposition was done for each data set with CoordGen6h (Sheets 2001). Procrustes coordinates were used as data for a Principal Component Analysis (PCA) using the software PAST 3.23 (Hammer et al. 2001). HAMMER, Ø., HARPER, D. A. T. and RYAN, P. D. 2001. PAST: Paleontological Statistics software package for education and data analysis. Palaeontologia Electronica, 4, 1–9. ROHLF, F. J. 2008. tpsDig2. http://life.bio.sunysb.edu/morph/ SHEETS, H. D.2001. IMP: integrated morphometrics package. Department of Physics, Canisius College, Buffalo, N.Y. - http://www3.canisius.edu/~sheets/morphsoft.html - http://www3.canisius.edu/~sheets/moremorph.html ZELDITCH, M. L., SWIDERSKI, D. L., SHEETS, H. D. and FINK, W. L. 2004. Geometric Morphometrics for Biologists: a Primer. Elsevier Academic Press, Amsterdam, 443 pp. The Darwinulocopina comprise an interest group of ostracods which where among the first invaders of freshwater waters during the late Palaeozoic. The Permian–Triassic extinction greatly reduced their diversity, reaching present times represented by one family. The darwinulids are regarded as “ancient asexuals” since a parthenogenetic mode of reproduction is assumed for all the post-Triassic members of the group. However, the high diversity achieved during the late Palaeozoic is often associated with sexual reproduction. Here we studied a monospecific association of ostracods from the Middle Triassic of the Cuyana Basin, Province of Mendoza, Argentina, and recognized a new species of Darwinulocopina, Prasuchonella? huarpe nov. sp. We discuss the traditional length/height and length/width graphical method to recognized ontogeny and/or sexual dimorphism in fossil ostracod assemblages, and performed a geometric morphometric analysis performed on both lateral and dorsal views of near one hundred seventy carapaces. The best results were obtained from the analysis in dorsal view, and four ontogenetic stages were discriminated (A-3, A-2, A-1 juveniles, adult). This allowed recognizing a main ontogenetic trend related to the development of the brooding chamber. Although subtle in differences, female carapaces are wider not only at the brooding chamber, but also along the whole length, compared to the carapaces of the presumptive males. Finally, full systematic descriptions and discussions, attempting to unify descriptive criteria for recent and fossil darwinulocopin carapaces, are provided. As a result, the need for a review of those Mesozoic records of Darwinulocopina, particularly those from the Triassic, is noted.

  • Open Access
    Authors: 
    Sun, Jin; Mu, Huawei; Ip, Jack C. H.; Li, Runsheng; Xu, Ting; Accorsi, Alice; Sánchez Alvarado, Alejandro; Ross, Eric; Lan, Yi; Sun, Yanan; +11 more
    Publisher: Data Archiving and Networked Services (DANS)
    Country: Argentina

    The family Ampullariidae includes both aquatic and amphibious apple snails. They are an emerging model for evolutionary studies due to the high diversity, ancient history and wide geographical distribution. Insight into drivers of ampullariid evolution is hampered, however, by the lack of genomic resources. Here we report the genomes of four ampullariids spanning the Old World (Lanistes nyassanus) and New World (Pomacea canaliculata, Pomacea maculata and Marisa cornuarietis) clades. The ampullariid genomes have conserved ancient bilaterial karyotype features and a novel Hox gene cluster rearrangement, making them valuable in comparative genomic studies. They have expanded gene families related to environmental sensing and cellulose digestion, which may have facilitated some ampullarids to become notorious invasive pests. In the amphibious Pomacea, novel acquision of an egg neurotoxin and a protein for making the calcareous eggshell may have been key adaptations enabling their transition from underwater to terrestrial egg deposition. Marisa cornuarietis genome v2.0Assembled genome and annotation (GFF, transcripts and protein sequence)Marisa_cornuarietis_genome_v2.0.zipLanistes nyassanus genome_v1.0Assembled genome and annotation (GFF, transcripts and protein sequence)Lanistes_nyassanus_genome_v1.0.zipPomacea maculata genome_v1.0Assembled genome and annotation (GFF, transcripts and protein sequence)Pomacea_maculata_genome_v1.0.zipPomacea canaliculata genome_v1.5Assembled genome and annotation (GFF, transcripts and protein sequence)Pomacea_canaliculata_genome_v1.5.zip

  • Research data . 2019 . Embargo End Date: 25 Mar 2020
    Open Access English
    Authors: 
    Presslee, Samantha; Slater, Graham J.; Pujos, Francois; Forasiepi, Analia M.; Fischer, Roman; Molloy, Kelly; Mackie, Meaghan; Olsen, Jesper V.; Kramarz, Alejandro; Taglioretti, Matias; +16 more
    Publisher: Dryad
    Country: Argentina

    protein_data_MrBayesNexus file containing collagen alignments for extinct and extant xenarthrans. Also includes MrBayes block with specifications for running Bayesian topology searchcombined_data_MrBayesalignment in nexus format containing collagen protein sequences and mitochondrial genomes as available for living and extinct xenarthrans. Also includes MrBayes block.protein_mtDNA_morphology_sloths_MRBnexus file containing protein and mtDNA data plus the morphological character dataset from Varela et al., 2019.BEAST_protein_Xenarthraxml file to run BEAST under fossilized birth death process with xenarthran proteomic dataBEAST_combined_data_bradypus_constraintxml file to run beast with combined proteomic and mitochondrial genome data. Note that this file enforces a monophyly constraint on Bradypus, which can be removed by commenting out the associated lines of the xmlprotein_only_xenarthra_beastmaximum clade crediibility chronogram from analysis of xenarthran proteomic datacombined_protein_mtDNA_xenarthra_bradypus_constraint_beastmaximum clade credibility chronogram from beast analysis of xenarthran proteomic and mitochondrial genome data. The living tree sloths Choloepus and Bradypus are the only remaining members of Folivora, a major xenarthran radiation that occupied a wide range of habitats in many parts of the western hemisphere during the Cenozoic, including both continents and the West Indies. Ancient DNA evidence has played only a minor role in folivoran systematics, as most sloths lived in places not conducive to genomic preservation. Here we utilize collagen sequence information, both separately and in combination with published mitochondrial DNA evidence, to assess the relationships of tree sloths and their extinct relatives. Results from phylogenetic analysis of these datasets differ substantially from morphology-based concepts: Choloepus groups with Mylodontidae, not Megalonychidae; Bradypus and Megalonyx pair together as megatherioids, while monophyletic Antillean sloths may be sister to all other folivorans. Divergence estimates are consistent with fossil evidence for mid-Cenozoic presence of sloths in the West Indies and an early Miocene radiation in South America.

  • Open Access
    Authors: 
    Hesse, Elze; O'Brien, Siobhan; Lujan, Adela; Bayer, Florian; van Veen, Eleanor; Hodgson, Dave; Buckling, Angus;
    Publisher: Zenodo
    Country: Argentina

    The R code (Hesse_etal.R) descibes step by step how metal polution affects the ecology and evolution of a community-wide public good – the production of metal-detoxifying siderophores. This code accompanies the manuscript "Interspecific interactions shape public goods production in natural microbial communities" (https://www.biorxiv.org/content/10.1101/710715v1) Fil: Hesse, Elze. University Exeter; United Kingdom. Fil: O'Brien, Siobhan. University of Liverpool; United Kingdom. Fil: Luján, Adela. Universidad Católica de Córdoba; Argentina. Fil: Luján, Adela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Recursos Naturales y Sustentabilidad José Sánchez Labrador S.J.; Argentina. Fil: Bayer, Florian. University Exeter; United Kingdom. Fil: van Veen, Eleanor. University Exeter; United Kingdom. Fil: Hodgson, Dave. University Exeter; United Kingdom. Fil: Buckling, Angus. University Exeter; United Kingdom.

  • Open Access Spanish; Castilian
    Authors: 
    Rovere, Alessio; Pappalardo, Marta; Richiano, Sebastian; Aguirre, Marina; Sandstrom, Michael R.; Hearty, Paul J.; Austermann, Jacqueline; Castellanos, Ignacio; Raymo, Maureen E.;
    Country: Argentina

    The dataset consists of a spreadsheet containing data on GPS surveys, dynamic topography extracted from published models (gplates.org), Shell preservation scoring, Strontium Isotopic Stratigraphy ages, and Global mean Sea Level calculations. Facultad de Ciencias Naturales y Museo

  • Open Access English
    Authors: 
    Ferrero, Leticia V.; Cappa, Cristina E.; Saldaño, Hugo P.; Gómez, Mercedes; Rubio, Mónica; Günthardt, Guillermo;
    Publisher: Zenodo
    Country: Argentina

    We present reduced H2 and K near-infrared band images of HH 137, taken with the GSAOI+GeMS instrument of the Gemini South telescope. In addition, we provide submilimiter data in 12CO(3-2), 13CO(3-2), C18O(3-2), HCO+(3-2) and HCN(3-2) molecular lines of both HH 137 and HH 138, obtained with the SHeFI instrument of the Atacama Pathfinder EXperiment (APEX) telescope. {"references": ["Ferrero et al. 2020"]} Accepted for publication in MNRAS

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11 Research products, page 1 of 2
  • Open Access English
    Authors: 
    Gregoric, D. E. Gutiérrez; Daglio, E. D.; De Lucía, M.; Robinson, D. G.; Darrigran, G.;
    Publisher: Zenodo
    Country: Argentina

    Commercial plant nurseries may serve as causes of dispersal of land snails and slugs (native and non-native) through the trade of plants and the related transport of eggs and small individuals that may pass unnoticed. Studies on the possible role of plant nurseries as a potential cause of dispersal of slugs in South America are lacking. To explore the role of garden centers, we collected and identified slugs in 12 commercial nurseries in two cities in the province of Buenos Aires, Argentina. Eight species of slugs were found. Based on our findings we validate the existence of Deroceras laeve and Belocaulus angustipes for Argentina and confirm the existence of Ambigolimax valentianus, which was recently cited for Argentina. We recommend that plant nurseries be regularly monitored given that snail and slug species are accidentally spread through trade in plants. {"references": ["Guti\u00e9rrez Gregoric, D. E., Daglio, E. D., de Luc\u00eda, M., Robinson, D. G., Darrigran, G., 2020. Land slugs in plant nurseries, a potential cause of dispersal in Argentina. Arxius de Miscel\u2022l\u00e0nia Zool\u00f2gica, 18, https://doi.org/10.32800/amz.2020.18.0173"]} Dataset: Taxonomic information, collection lots for each species deposited in the Malacological Collection of La Plata Museum, number of individuals per lot deposited, coordinates of the nurseries, and date of collection.

  • Open Access English
    Authors: 
    Gao, Shang; Rosales, H. D.; Albarracín, F. A. Gómez; Tsurkan, Vladimir; Kaur, Guratinder; Fennell, Tom; Steffens, Paul; Boehm, Martin; Čermák, Petr; Schneidewind, Astrid; +4 more
    Publisher: Zenodo
    Country: Argentina

    Data for: Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings. Instituto de Física de Líquidos y Sistemas Biológicos Facultad de Ciencias Exactas Facultad de Ingeniería

  • Open Access Spanish; Castilian
    Authors: 
    Palacio, Facundo; Siepielski, Adam; Lacoretz, Mariela; Ordano, Mariano;
    Country: Argentina

    Every organism on Earth must cope with a multitude of species interactions both directly and indirectly throughout its life cycle. However, how selection from multiple species occupying different trophic levels affects diffuse mutualisms has received little attention. As a result, how a given species amalgamates the combined effects of selection from multiple mutualists and antagonists to enhance its own fitness remains little understood. We investigated how multispecies interactions (frugivorous birds, ants, fruit flies, and parasitoid wasps) generate selection on fruit display traits in a seed dispersal mutualism. We used structural equation models to assess whether seed dispersers (frugivorous birds and ants) exerted phenotypic selection on fruit and seed traits in the Spiny Hackberry (Celtis ehrenbergiana), a fleshy-fruited tree, and how these selection regimes were influenced by fruit fly infestation and wasp parasitoidism levels. Birds exerted negative correlational selection on the combination of fruit crop size and mean seed weight, favoring either large crops with small seeds or small crops with large seeds. Parasitoids selected plants with higher fruit fly infestation levels, and fruit flies exerted positive directional selection on fruit size, which was positively correlated with seed weight. Therefore, higher parasitoidism indirectly correlated with higher plant fitness through increased bird fruit removal. In addition, ants exerted negative directional selection on mean seed weight. Our results show that strong selection on phenotypic traits may still arise in perceived diffuse species interactions. Overall, we emphasize the need to consider diverse direct and indirect partners to achieve a better understanding of the mechanisms driving phenotypic trait evolution in multispecies interactions. Cafeteria experiment of ant fruit and seed removal See README file for a description of the content of all datafiles. Celtis_piecewiseSEM.csv Missing data are labeled as 'NA'. Selection exerted by birds and ants on Spiny Hackberry fruits, shaped by fruit fly infestation and parasitoidism See README file for a description of the content of all datafiles. Ant_removal_experiment.csv Missing data are labeled as 'NA'. Dataset used to analyze the ant fruit and seed removal experiment and to fit piecewise structural equation models

  • Open Access English
    Authors: 
    Andre Sanz-Veiga, Priscila; Ré Jorge, Leonardo; Benitez-Vieyra, Santiago; W Amorim, Felipe;
    Publisher: Zenodo
    Country: Argentina

    This dataset describes the number of flowers, fruits and seed set of Tocoyena formosa in branches exposed (control) and isolated (ant exclusion) from ants, as well as the visiting ants and seed predators reared from fruits collected from both treatments. Fil: Andre Sanz-Veiga, Priscila. Universidade Estadual Paulista. Instituto de Biociências. Laboratório de ecologia de polinização e interação; Brasil. Fil: Ré, Jorge Leonardo. Universidade Estadual de Campinas. Departamento de Biología Animal; Brasil. Fil: Benítez Vieyra, Santiago. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Fil: Benítez Vieyra, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Multidisciplinario de Biología Vegetal; Argentina. Fil: W Amorim, Felipe. Universidade Estadual Paulista. Instituto de Biociências. Laboratório de ecologia de polinização e interação; Brasil.

  • Open Access English
    Authors: 
    Carignano, Ana Paula; Carignano, Ana; Echevarría, Javier; Zavattieri, Ana;
    Publisher: Dryad
    Country: Argentina

    Several hundreds of carapaces and a few valves were picked under a Nikon SMZ645 stereomicroscope from a single sample. Selected specimens were mounted on stubs using carbon conductive adhesive tape, gold coated and scanned with a JEOL JSM-6360LV Scanning Electron Microscope (SEM) at the Servicio de Microscopía Electrónica del Museo de La Plata, La Plata city, Argentina. After examination under SEM, a total of 167 specimens were retained for study regarding their preservation, mainly those with undeformed dorsal and/or lateral outlines. Length, height, and width for carapaces were measured on SEM images. A geometric morphometric analysis, following the procedures outlined by Zelditch et al. (2004), was performed on the SEM photographs on both dorsal and lateral left views of the carapaces. For the dorsal view, two landmarks were established: 1) the anterior most and 2) the posterior most points of valves contact. The outline for each valve was characterized by a 100 points curve including both landmarks. The anterior most point of the carapace was defined as initial point for the outline on lateral view of the carapace, which was characterized by 200 points. Data was standardized for position, size and rotational differences by means of a generalized least squares Procrustes superposition (Zelditch et al. 2004, p. 113–119). Logarithm with base 10 of Centroid Size—log(CS)—was used as size estimator for all the analyses that required it (Zelditch et al. 2004, p. 78). Digitization of the landmark configurations was performed on TPSdig2.12 (Rohlf 2008), and a Procrustes superposition was done for each data set with CoordGen6h (Sheets 2001). Procrustes coordinates were used as data for a Principal Component Analysis (PCA) using the software PAST 3.23 (Hammer et al. 2001). HAMMER, Ø., HARPER, D. A. T. and RYAN, P. D. 2001. PAST: Paleontological Statistics software package for education and data analysis. Palaeontologia Electronica, 4, 1–9. ROHLF, F. J. 2008. tpsDig2. http://life.bio.sunysb.edu/morph/ SHEETS, H. D.2001. IMP: integrated morphometrics package. Department of Physics, Canisius College, Buffalo, N.Y. - http://www3.canisius.edu/~sheets/morphsoft.html - http://www3.canisius.edu/~sheets/moremorph.html ZELDITCH, M. L., SWIDERSKI, D. L., SHEETS, H. D. and FINK, W. L. 2004. Geometric Morphometrics for Biologists: a Primer. Elsevier Academic Press, Amsterdam, 443 pp. The Darwinulocopina comprise an interest group of ostracods which where among the first invaders of freshwater waters during the late Palaeozoic. The Permian–Triassic extinction greatly reduced their diversity, reaching present times represented by one family. The darwinulids are regarded as “ancient asexuals” since a parthenogenetic mode of reproduction is assumed for all the post-Triassic members of the group. However, the high diversity achieved during the late Palaeozoic is often associated with sexual reproduction. Here we studied a monospecific association of ostracods from the Middle Triassic of the Cuyana Basin, Province of Mendoza, Argentina, and recognized a new species of Darwinulocopina, Prasuchonella? huarpe nov. sp. We discuss the traditional length/height and length/width graphical method to recognized ontogeny and/or sexual dimorphism in fossil ostracod assemblages, and performed a geometric morphometric analysis performed on both lateral and dorsal views of near one hundred seventy carapaces. The best results were obtained from the analysis in dorsal view, and four ontogenetic stages were discriminated (A-3, A-2, A-1 juveniles, adult). This allowed recognizing a main ontogenetic trend related to the development of the brooding chamber. Although subtle in differences, female carapaces are wider not only at the brooding chamber, but also along the whole length, compared to the carapaces of the presumptive males. Finally, full systematic descriptions and discussions, attempting to unify descriptive criteria for recent and fossil darwinulocopin carapaces, are provided. As a result, the need for a review of those Mesozoic records of Darwinulocopina, particularly those from the Triassic, is noted.

  • Open Access
    Authors: 
    Sun, Jin; Mu, Huawei; Ip, Jack C. H.; Li, Runsheng; Xu, Ting; Accorsi, Alice; Sánchez Alvarado, Alejandro; Ross, Eric; Lan, Yi; Sun, Yanan; +11 more
    Publisher: Data Archiving and Networked Services (DANS)
    Country: Argentina

    The family Ampullariidae includes both aquatic and amphibious apple snails. They are an emerging model for evolutionary studies due to the high diversity, ancient history and wide geographical distribution. Insight into drivers of ampullariid evolution is hampered, however, by the lack of genomic resources. Here we report the genomes of four ampullariids spanning the Old World (Lanistes nyassanus) and New World (Pomacea canaliculata, Pomacea maculata and Marisa cornuarietis) clades. The ampullariid genomes have conserved ancient bilaterial karyotype features and a novel Hox gene cluster rearrangement, making them valuable in comparative genomic studies. They have expanded gene families related to environmental sensing and cellulose digestion, which may have facilitated some ampullarids to become notorious invasive pests. In the amphibious Pomacea, novel acquision of an egg neurotoxin and a protein for making the calcareous eggshell may have been key adaptations enabling their transition from underwater to terrestrial egg deposition. Marisa cornuarietis genome v2.0Assembled genome and annotation (GFF, transcripts and protein sequence)Marisa_cornuarietis_genome_v2.0.zipLanistes nyassanus genome_v1.0Assembled genome and annotation (GFF, transcripts and protein sequence)Lanistes_nyassanus_genome_v1.0.zipPomacea maculata genome_v1.0Assembled genome and annotation (GFF, transcripts and protein sequence)Pomacea_maculata_genome_v1.0.zipPomacea canaliculata genome_v1.5Assembled genome and annotation (GFF, transcripts and protein sequence)Pomacea_canaliculata_genome_v1.5.zip

  • Research data . 2019 . Embargo End Date: 25 Mar 2020
    Open Access English
    Authors: 
    Presslee, Samantha; Slater, Graham J.; Pujos, Francois; Forasiepi, Analia M.; Fischer, Roman; Molloy, Kelly; Mackie, Meaghan; Olsen, Jesper V.; Kramarz, Alejandro; Taglioretti, Matias; +16 more
    Publisher: Dryad
    Country: Argentina

    protein_data_MrBayesNexus file containing collagen alignments for extinct and extant xenarthrans. Also includes MrBayes block with specifications for running Bayesian topology searchcombined_data_MrBayesalignment in nexus format containing collagen protein sequences and mitochondrial genomes as available for living and extinct xenarthrans. Also includes MrBayes block.protein_mtDNA_morphology_sloths_MRBnexus file containing protein and mtDNA data plus the morphological character dataset from Varela et al., 2019.BEAST_protein_Xenarthraxml file to run BEAST under fossilized birth death process with xenarthran proteomic dataBEAST_combined_data_bradypus_constraintxml file to run beast with combined proteomic and mitochondrial genome data. Note that this file enforces a monophyly constraint on Bradypus, which can be removed by commenting out the associated lines of the xmlprotein_only_xenarthra_beastmaximum clade crediibility chronogram from analysis of xenarthran proteomic datacombined_protein_mtDNA_xenarthra_bradypus_constraint_beastmaximum clade credibility chronogram from beast analysis of xenarthran proteomic and mitochondrial genome data. The living tree sloths Choloepus and Bradypus are the only remaining members of Folivora, a major xenarthran radiation that occupied a wide range of habitats in many parts of the western hemisphere during the Cenozoic, including both continents and the West Indies. Ancient DNA evidence has played only a minor role in folivoran systematics, as most sloths lived in places not conducive to genomic preservation. Here we utilize collagen sequence information, both separately and in combination with published mitochondrial DNA evidence, to assess the relationships of tree sloths and their extinct relatives. Results from phylogenetic analysis of these datasets differ substantially from morphology-based concepts: Choloepus groups with Mylodontidae, not Megalonychidae; Bradypus and Megalonyx pair together as megatherioids, while monophyletic Antillean sloths may be sister to all other folivorans. Divergence estimates are consistent with fossil evidence for mid-Cenozoic presence of sloths in the West Indies and an early Miocene radiation in South America.

  • Open Access
    Authors: 
    Hesse, Elze; O'Brien, Siobhan; Lujan, Adela; Bayer, Florian; van Veen, Eleanor; Hodgson, Dave; Buckling, Angus;
    Publisher: Zenodo
    Country: Argentina

    The R code (Hesse_etal.R) descibes step by step how metal polution affects the ecology and evolution of a community-wide public good – the production of metal-detoxifying siderophores. This code accompanies the manuscript "Interspecific interactions shape public goods production in natural microbial communities" (https://www.biorxiv.org/content/10.1101/710715v1) Fil: Hesse, Elze. University Exeter; United Kingdom. Fil: O'Brien, Siobhan. University of Liverpool; United Kingdom. Fil: Luján, Adela. Universidad Católica de Córdoba; Argentina. Fil: Luján, Adela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Recursos Naturales y Sustentabilidad José Sánchez Labrador S.J.; Argentina. Fil: Bayer, Florian. University Exeter; United Kingdom. Fil: van Veen, Eleanor. University Exeter; United Kingdom. Fil: Hodgson, Dave. University Exeter; United Kingdom. Fil: Buckling, Angus. University Exeter; United Kingdom.

  • Open Access Spanish; Castilian
    Authors: 
    Rovere, Alessio; Pappalardo, Marta; Richiano, Sebastian; Aguirre, Marina; Sandstrom, Michael R.; Hearty, Paul J.; Austermann, Jacqueline; Castellanos, Ignacio; Raymo, Maureen E.;
    Country: Argentina

    The dataset consists of a spreadsheet containing data on GPS surveys, dynamic topography extracted from published models (gplates.org), Shell preservation scoring, Strontium Isotopic Stratigraphy ages, and Global mean Sea Level calculations. Facultad de Ciencias Naturales y Museo

  • Open Access English
    Authors: 
    Ferrero, Leticia V.; Cappa, Cristina E.; Saldaño, Hugo P.; Gómez, Mercedes; Rubio, Mónica; Günthardt, Guillermo;
    Publisher: Zenodo
    Country: Argentina

    We present reduced H2 and K near-infrared band images of HH 137, taken with the GSAOI+GeMS instrument of the Gemini South telescope. In addition, we provide submilimiter data in 12CO(3-2), 13CO(3-2), C18O(3-2), HCO+(3-2) and HCN(3-2) molecular lines of both HH 137 and HH 138, obtained with the SHeFI instrument of the Atacama Pathfinder EXperiment (APEX) telescope. {"references": ["Ferrero et al. 2020"]} Accepted for publication in MNRAS

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