10 Works

Data from: Drosophila wing modularity revisited through a quantitative genetic approach

Francesc Muñoz-Muñoz, Valeria Paula Carreira, Neus Martínez-Abadías, Victoria Estefanía Ortiz, Rolando González-José, Ignacio M. Soto & Victoria Ortiz
To predict the response of complex morphological structures to selection it is necessary to know how the covariation among its different parts is organized. Two key features of covariation are modularity and integration. The Drosophila wing is currently considered a fully integrated structure. Here, we study the patterns of integration of the Drosophila wing and test the hypothesis of the wing being divided into two modules along the proximo-distal axis, as suggested by developmental, biomechanical,...

Data from: Climate modifies response of non-native and native species richness to nutrient enrichment

Habacuc Flores-Moreno, Peter B. Reich, Eric M. Lind, Lauren L. Sullivan, Eric W. Seabloom, Laura Yahdjian, Andrew S. MacDougall, Lara G. Reichmann, Juan Alberti, Selene Báez, Jonathan D. Bakker, Marc W. Cadotte, Maria C. Caldeira, Enrique J. Chaneton, Carla M. D'Antonio, Philip A. Fay, Jennifer Firn, Nicole Hagenah, W. Stanley Harpole, Oscar Iribarne, Kevin P. Kirkman, Johannes M. H. Knops, Kimberly J. La Pierre, Ramesh Laungani, Andrew D. B. Leakey … & Elizabeth T. Borer
Ecosystem eutrophication often increases domination by non-natives and causes displacement of native taxa. However, variation in environmental conditions may affect the outcome of interactions between native and non-native taxa in environments where nutrient supply is elevated. We examined the interactive effects of eutrophication, climate variability and climate average conditions on the success of native and non-native plant species using experimental nutrient manipulations replicated at 32 grassland sites on four continents. We hypothesized that effects of...

Data from: Global population divergence and admixture of the brown rat (Rattus norvegicus)

Emily E. Puckett, Jane Park, Matthew Combs, Michael J. Blum, Juliet E. Bryant, Adalgisa Caccone, Federico Costa, Eva E. Deinum, Alexandra Esther, Chelsea G. Himsworth, Peter D. Keightley, Albert Ko, Ake Lundkvist, Lorraine M. McElhinney, Serge Morand, Judith Robins, James Russell, Tanja M. Strand, Olga Suarez, Lisa Yon & Jason Munshi-South
Native to China and Mongolia, the brown rat (Rattus norvegicus) now enjoys a worldwide distribution. While black rats and the house mouse tracked the regional development of human agricultural settlements, brown rats did not appear in Europe until the 1500s, suggesting their range expansion was a response to relatively recent increases in global trade. We inferred the global phylogeography of brown rats using 32 k SNPs, and detected 13 evolutionary clusters within five expansion routes....

Data from: Psychostimulant-induced testicular toxicity in mice: evidence of cocaine and caffeine effects on the local dopaminergic system

Candela R. González, Betina González, Maria E. Matzkin, Javier A. Muñiz, Jean Lud Cadet, Edgar Garcia-Rill, Francisco J. Urbano, Alfredo D. Vitullo & Veronica Bisagno
Several organ systems can be affected by psychostimulant toxicity. However, there is not sufficient evidence about the impact of psychostimulant intake on testicular physiology and catecholaminergic systems. The aim of the present study was to further explore potential toxic consequences of chronic exposure to cocaine, caffeine, and their combination on testicular physiology. Mice were injected with a 13-day chronic binge regimen of caffeine (3x5mg/kg), cocaine (3×10mg/kg), or combined administration. Mice treated with cocaine alone or...

Data from: Litter microbial and soil faunal communities stimulated in the wake of a volcanic eruption in a semi-arid woodland in Patagonia, Argentina

Paula Berenstecher, Daniela Gangi, Adelia González-Arzac, M. Laura Martínez, Eliseo J. Chaves, Eduardo A. Mondino & Amy T. Austin
Large-scale disturbances can be important components of the temporal landscape of natural ecosystems, but generalities regarding ecosystem impacts are difficult due to their infrequent and unpredictable nature. Volcanic eruptions figure as one of the most prominent of these natural disturbances, but the effects on microbes and ground-dwelling arthropods, which modulate carbon and nutrient turnover, are relatively unknown. We evaluated the effects of the 2011 Puyehue-Cordón Caulle eruption in Patagonia, Argentina, on the litter and soil...

Data from: Taxonomy of the bivalve Ptychomya in the Lower Cretaceous of the Neuquén basin (west-central Argentina)

Pablo S. Milla Carmona, Dario G. Lazo & Ignacio M. Soto
In the Lower Cretaceous Agrio Formation, Neuquén Basin (west-central Argentina), the highly variable genus Ptychomya Agassiz has challenged traditional taxonomists for over a century. Here we apply a previously outlined quantitative protocol in order to settle the taxonomy of the genus based on specimens recorded from the base to the top of the Agrio Formation. The shell outline and ribbing pattern, two prominent external features of the valves, were quantified using geometric morphometric measurements of...

Data from: Transcriptome modulation during host shift is driven by secondary metabolites in desert Drosophila

Diego N. De Panis, Julián Padró, Pedro Furió-Tarí, Sonia Tarazona, Pablo S. Milla Carmona, Ignacio M. Soto, Hernán Dopazo, Ana Conesa & Esteban Hasson
High-throughput transcriptome studies are breaking new ground to investigate the responses that organisms deploy in alternative environments. Nevertheless, much remains to be understood about the genetic basis of host plant adaptation. Here, we investigate genome-wide expression in the fly Drosophila buzzatii raised in different conditions. This species uses decaying tissues of cactus of the genus Opuntia as primary rearing substrate and secondarily, the necrotic tissues of the columnar cactus Trichocereus terscheckii. The latter constitutes a...

Data from: Walk before you jump: new insights on early frog locomotion from the oldest known salientian

Andrés Ignacio Lires, Ignacio Maria Soto & Raúl Orencio Gómez
Understanding the evolution of a Bauplan starts with discriminating phylogenetic signal from adaptation and the latter from exaptation in the observed biodiversity. Whether traits have predated, accompanied, or followed evolution of particular functions is the basic inference to establish the type of explanations required to determine morphological evolution. To accomplish this, we focus in a particular group of vertebrates, the anurans. Frogs and toads have a unique Bauplan among vertebrates, with a set of postcranial...

Data from: Early genetic consequences of defaunation in a large-seeded vertebrate-dispersed palm (Syagrus romanzoffiana)

Mariano I. Giombini, Susana P. Bravo, Yanina V. Sica & Daniela S. Tosto
Plant populations are seriously threatened by anthropogenic habitat disturbance. In particular, defaunation may disrupt plant-disperser mutualisms, thus reducing levels of seed-mediated gene flow and genetic variation in animal-dispersed plants. This may ultimately limit their adaptive potential and ability to cope with environmental change. Tropical forest remnants are typically deprived of medium to large vertebrates upon which many large-seeded plants rely for accomplishing effective seed dispersal. Our main goal was to examine the potential early genetic...

Data from: Fossil evidence of the avian vocal organ from the Mesozoic

Julia A. Clarke, Sankar Chatterjee, Zhiheng Li, Tobias Riede, Federico Angolin, Franz Goller, Marcelo P. Isasi, Daniel R. Martinioni, Francisco J. Mussel & Fernando E. Novas
From complex songs to simple honks, birds produce sounds using a unique vocal organ called the syrinx1, 2. Located close to the heart at the tracheobronchial junction, vocal folds or membranes attached to modified mineralized rings vibrate to produce sound1, 2, 3, 4, 5, 6, 7. Syringeal components were not thought to commonly enter the fossil record6, and the few reported fossilized parts of the syrinx are geologically young8, 9, 10, 11 (from the Pleistocene...

Registration Year

  • 2016
    10

Resource Types

  • Dataset
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Affiliations

  • University of Buenos Aires
    10
  • National Scientific and Technical Research Council
    2
  • Helmholtz Centre for Environmental Research
    1
  • CIUDAD
    1
  • University of Washington
    1
  • National Institute on Drug Abuse
    1
  • The University of Texas at Austin
    1
  • Midwestern State University
    1
  • University of Arkansas for Medical Sciences
    1
  • Universidade Federal Rural do Rio de Janeiro
    1