10 Works

Data from: Population genomics meet Lagrangian simulations: oceanographic patterns and long larval duration ensure connectivity among Paracentrotus lividus populations in the Adriatic and Ionian seas

Marta Paterno, Marcello Schiavina, Giorgio Aglieri, Jamila Ben Souissi, Elisa Boscari, Renato Casagrandi, Aurore Chassanite, Mariachiara Chiantore, Leonardo Congiu, Giuseppe Guarnieri, Claudia Kruschel, Vesna Macic, Ilaria Anna Maria Marino, Chiara Papetti, Tomaso Patarnello, Lorenzo Zane & Paco Melià
Connectivity between populations is a key factor that influences both their dynamics and the genetic structuring of marine species. In this study, we explored connectivity patterns of a long-dispersing species, the edible common sea urchin Paracentrotus lividus, focusing mainly on the Adriatic-Ionian basins. We applied a multidisciplinary approach integrating population genomics, based on 1122 Single Nucleotide Polymorphisms (SNPs) obtained by 2b-RAD in 275 samples, with Lagrangian simulations performed with a biophysical model of larval dispersal....

Data from: Possible glimpses into early speciation: the effect of ovarian fluid on sperm velocity accords with post-copulatory isolation between two guppy populations

Alessandro Devigili, John L Fitzpatrick, Clelia Gasparini, Indar W Ramnarine, Andrea Pilastro & Jonathan P Evans
Identifying mechanisms of reproductive isolation is key to understanding speciation. Among the putative mechanisms underlying reproductive isolation, sperm-female interactions (postmating-prezygotic barriers) are arguably the hardest to identify, not least because these are likely to operate at the cellular or molecular level. Yet sperm-female interactions offer great potential to prevent the transfer of genetic information between different populations at the initial stages of speciation. Here we provide a preliminary test for the presence of a putative...

Data from: Demographic stochasticity and resource autocorrelation control biological invasions in heterogeneous landscapes

Andrea Giometto, Florian Altermatt & Andrea Rinaldo
Mounting theoretical evidence suggests that demographic stochasticity, environmental heterogeneity and biased movement of organisms individually affect the dynamics of biological invasions and range expansions. Studies of species spread in heterogeneous landscapes have traditionally characterized invasion velocities as functions of the mean resource density throughout the landscape, thus neglecting higher-order moments of the spatial resource distribution. Here, we show theoretically that different spatial arrangements of resources lead to different spread velocities even if the mean resource...

Data from: Axial xylem architecture of Larix decidua exposed to CO2 enrichment and soil warming at the treeline

Angela L. Prendin, Giai Petit, Patrick Fonti, Christian Rixen, Melissa Autumn Dawes & Georg Von Arx
1. Trees continuously adjust their axial xylem structure to meet changing needs imposed by ontogenetic and environmental changes. These axial structure-function responses need to be coordinated among competing biophysical constraints to avoid failure of the xylem system. Here, we investigated if ontogeny or experimental manipulation of CO2 and soil temperature influence these structure-function responses. 2. We performed detailed xylem cell anatomical quantification along the axis of 40-year-old Larix decidua trees planted at the Swiss treeline...

Data from: TMS reveals flexible use of form and motion cues in biological motion perception

George Mather, Luca Battaglini & Gianluca Campana
The perception of human movement is a key component of daily social interactions. Although extrastriate area MT+/V5 is closely associated with motion processing, its role in the processing of sparse 'biological motion' displays is still unclear. We developed two closed matched psychophysical tasks to assess simple coherent motion perception and biological motion perception, and measured changes in performance caused by application of TMS over MT+/V5. Performance of the simple motion discrimination task was significantly depressed...

Data from: Pollination benefits are maximized at intermediate nutrient levels

Giovanni Tamburini, Francesco Lami & Lorenzo Marini
Yield production in flowering crops depends on both nutrient resource availability and pollination but their relative roles and potential interactions are poorly understood. We measured pollination benefits to yield in sunflower, combining a gradient in insect pollination (0, 25, 50, 100%) with a continuous gradient in nitrogen (N) fertilization (from 0 to 150 kg N ha-1) in an experiment under realistic soil field conditions. We found that pollination benefits to yield were maximized at intermediate...

Data from: Population demography and heterozygosity-fitness correlations in natural guppy populations: an examination using sexually selected fitness traits

Catherine E. Grueber, John L. Fitzpatrick, Alessandro Devigili, Clelia Gasparini, Indar W. Ramnarine & Jonathan P. Evans
Heterozygosity-fitness correlations (HFCs) have been examined in a wide diversity of contexts, and the results are often used to infer the role of inbreeding in natural populations. Although population demography, reflected in population-level genetic parameters such as allelic diversity or identity disequilibrium, is expected to play a role in the emergence and detectability of HFCs, direct comparisons of variation in HFCs across many populations of the same species, with different genetic histories, are rare. Here,...

Data from: Metagenomic analysis reveals changes of the Drosophila suzukii microbiota in the newly colonised regions

Isabel Martinez-Sañudo, Mauro Simonato, Andrea Squartini, Nicola Mori, Laura Marri & Luca Mazzon
The spotted wing drosophila, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) is a highly polyphagous pest of a wide variety of wild or cultivated berry and stone fruit. Originating from Southeast Asia, it has recently invaded a wide range of regions in Europe and North-America. It is well known that insect microbiotas may significantly influence several aspects of the host biology and play an important role in invasive species introduction into new areas. However, in spite of...

Data from: Soil pathogen-aphid interactions under differences in soil organic matter and mineral fertilizer

Stijn Van Gils, Giovanni Tamburini, Lorenzo Marini, Arjen Biere, Maaike Van Agtmaal, Olaf Tyc, Martine Kos, David Kleijn & Wim H. Van Der Putten
There is increasing evidence showing that microbes can influence plant-insect interactions. In addition, various studies have shown that aboveground pathogens can alter the interactions between plants and insects. However, little is known about the role of soil-borne pathogens in plant-insect interactions. It is also not known how environmental conditions, that steer the performance of soil-borne pathogens, might influence these microbe-plant-insect interactions. Here, we studied effects of the soil-borne pathogen Rhizoctonia solani on aphids (Sitobion avenae)...

Data from: 2b-RAD genotyping for population genomic studies of Chagas disease vectors: Rhodnius ecuadoriensis in Ecuador

Luis Enrique Hernandez Castro, Marta Paterno, Anita G. Villacís, Björn Andersson, Jaime A. Costales, Michele De Noia, Sofía Ocaña-Mayorga, Cesar A. Yumiseva, Mario J. Grijalva, Martin S. Llewellyn & Luis E. Hernandez-Castro
Background: Rhodnius ecuadoriensis is the main triatomine vector of Chagas disease, American trypanosomiasis, in Southern Ecuador and Northern Peru. Genomic approaches and next generation sequencing technologies have become powerful tools for investigating population diversity and structure which is a key consideration for vector control. Here we assess the effectiveness of three different 2b restriction site-associated DNA (2b-RAD) genotyping strategies in R. ecuadoriensis to provide sufficient genomic resolution to tease apart microevolutionary processes and undertake some...

Registration Year

  • 2017
    10

Resource Types

  • Dataset
    10

Affiliations

  • University of Padua
    10
  • University of the West Indies
    2
  • University of Western Australia
    2
  • Stockholm University
    2
  • Swiss Federal Institute of Aquatic Science and Technology
    1
  • CoNISMa
    1
  • University of Zadar
    1
  • University of Glasgow
    1
  • University of Genoa
    1
  • Nederlands Instituut voor Ecologie
    1