16 Works

Data from: The first multi-gene phylogeny of the Macrostomorpha sheds light on the evolution of sexual and asexual reproduction in basal Platyhelminthes

Toon Janssen, Dita B. Vizoso, Gregor Schulte, D. Timothy J. Littlewood, Andrea Waeschenbach & Lukas Schärer
The Macrostomorpha—an early branching and species-rich clade of free-living flatworms—is attracting interest because it contains Macrostomum lignano, a versatile model organism increasingly used in evolutionary, developmental, and molecular biology. We elucidate the macrostomorphan molecular phylogeny inferred from both nuclear (18S and 28S rDNA) and mitochondrial (16S rDNA and COI) marker genes from 40 representatives. Although our phylogeny does not recover the Macrostomorpha as a statistically supported monophyletic grouping, it (i) confirms many taxa previously proposed...

Data from: Horizontal gene flow from Eubacteria to Archaebacteria and what it means for our understanding of eukaryogenesis

Wasiu A. Akanni, Karen Siu-Ting, Christopher J. Creevey, James O. McInerney, Mark Wilkinson, Peter G. Foster & Davide Pisani
The origin of the eukaryotic cell is considered one of the major evolutionary transitions in the history of life. Current evidence strongly supports a scenario of eukaryotic origin in which two prokaryotes, an archaebacterial host and an α-proteobacterium (the free-living ancestor of the mitochondrion), entered a stable symbiotic relationship. The establishment of this relationship was associated with a process of chimerization, whereby a large number of genes from the α-proteobacterial symbiont were transferred to the...

Data from: Phylogenetic community ecology of soil biodiversity using mitochondrial metagenomics

Carmelo Andújar, Paula Arribas, Filip Ruzicka, Alexandra Crampton Platt, Martijn J. T. N. Timmermans, Alfried P. Vogler & Alex Crampton-Platt
High-throughput DNA methods hold great promise for the study of taxonomically intractable mesofauna of the soil. Here, we assess species diversity and community structure in a phylogenetic framework, by sequencing total DNA from bulk specimen samples and assembly of mitochondrial genomes. The combination of mitochondrial metagenomics and DNA barcode sequencing of 1494 specimens in 69 soil samples from three geographic regions in southern Iberia revealed >300 species of soil Coleoptera (beetles) from a broad spectrum...

Data from: Dramatic niche shifts and morphological change in two insular bird species

Per Alström, Jon Fjeldså, Knud Andreas Jønsson, Anders Ödeen, Per G. P. Ericson, Martin Irestedt, J. Fjeldsa, K. A. Jonsson, P. Alstrom & A. Odeen
Colonizations of islands are often associated with rapid morphological divergence. We present two previously unrecognized cases of dramatic morphological change and niche shifts in connection with colonization of tropical forest-covered islands. These evolutionary changes have concealed the fact that the passerine birds madanga, Madanga ruficollis, from Buru, Indonesia, and São Tomé shorttail, Amaurocichla bocagii, from São Tomé, Gulf of Guinea, are forest-adapted members of the family Motacillidae (pipits and wagtails). We show that Madanga has...

Data from: A large 28S rDNA-based phylogeny confirms the limitations of established morphological characters for classification of proteocephalidean tapeworms (Platyhelminthes, Cestoda)

Alain De Chambrier, Andrea Waeschenbach, Makda Fisseha, Tomas Scholz & Jean Mariaux
Proteocephalidean tapeworms form a diverse group of parasites currently known from 315 valid species. Most of the diversity of adult proteocephalideans can be found in freshwater fishes (predominantly catfishes), a large proportion infects reptiles, but only a few infect amphibians, and a single species has been found to parasitize possums. Although they have a cosmopolitan distribution, a large proportion of taxa are exclusively found in South America. We analyzed the largest proteocephalidean cestode molecular dataset...

Data from: Liverworts to the rescue: an investigation of their efficacy as mycorrhizal inoculum for vascular plants

Jill Kowal, Silvia Pressel, Jeffrey G. Duckett & Martin I. Bidartondo
Pezoloma ericae (D.J. Read) Baral, a widespread mycorrhizal fungus of plants in the Ericales, is known to form intracellular associations with several families of leafy liverworts (Schistochilaceae, Lepidoziaceae, Cephaloziaceae, Cephaloziellaceae) in vitro. The ecological significance of this link between vascular and non-vascular plants is unknown. Fungal symbionts were isolated from rhizoids of the leafy liverworts Cephalozia connivens (Dicks.) Lindb. and C. bicuspidata (L.) Dum. (Cephaloziaceae), as well as from the hair roots of two dominant...

Data from: Epidemiological interactions between urogenital and intestinal human schistosomiasis in the context of praziquantel treatment across three West African countries

Sarah C. L. Knowles, Bonnie L. Webster, Amadou Garba, Moussa Sacko, Oumar T. Diaw, Alan Fenwick, David Rollinson & Joanne P. Webster
Background: In many parts of sub-Saharan Africa, urogenital and intestinal schistosomiasis co-occur, and mixed species infections containing both Schistosoma haematobium and S. mansoni can be common. During co-infection, interactions between these two species are possible, yet the extent to which such interactions influence disease dynamics or the outcome of control efforts remains poorly understood. Methodology/Principal Findings: Here we analyse epidemiological data from three West African countries co-endemic for urogenital and intestinal schistosomiasis (Senegal, Niger and...

Data from: Lake sediment multi-taxon DNA from North Greenland records early post-glacial appearance of vascular plants and accurately tracks environmental changes

Laura S. Epp, Galina Gussarova, Sanne Boessenkool, Jesper Olsen, James Haile, Audun Schrøder-Nielsen, Anna Ludikova, Kristian Hassel, Hans K. Stenøien, Svend V. Funder, Eske Willerslev, Kurt Kjær & Christian Brochmann
High Arctic environments are particularly sensitive to climate changes, but retrieval of paleoecological data is challenging due to low productivity and biomass. At the same time, Arctic soils and sediments have proven exceptional for long-term DNA preservation due to their constantly low temperatures. Lake sediments contain DNA paleorecords of the surrounding ecosystems and can be used to retrieve a variety of organismal groups from a single sample. In this study, we analyzed vascular plant, bryophyte,...

Data from: Body mass estimates of an exceptionally complete Stegosaurus (Ornithischia: Thyreophora): comparing volumetric and linear bivariate mass estimation methods

Charlotte A. Brassey, Susannah Maidment, Paul Barrett & P. M. Barrett
Body mass is a key biological variable, but difficult to assess from fossils. Various techniques exist for estimating body mass from skeletal parameters, but few studies have compared outputs from different methods. Here, we apply several mass estimation methods to an exceptionally complete skeleton of the dinosaur Stegosaurus. Applying a volumetric convex-hulling technique to a digital model of Stegosaurus, we estimate a mass of 1560 kg (95% prediction interval 1082–2256 kg) for this individual. By...

Data from: Validating the power of mitochondrial metagenomics for community ecology and phylogenetics of complex assemblages

Carola Gómez-Rodríguez, Alex Crampton-Platt, Martijn J. T. N. Timmermans, Andrés Baselga & Alfried P. Vogler
1. The biodiversity of mixed-species samples of arthropods can be characterized by shotgun sequencing of bulk genomic DNA and subsequent bioinformatics assembly of mitochondrial genomes. Here, we tested the power of mitochondrial metagenomics by conducting Illumina sequencing on mixtures of >2600 individuals of leaf beetles (Chrysomelidae) from 10 communities. 2. Patterns of species richness, community dissimilarity and biomass were assessed from matches of reads against three reference databases, including (i) a custom set of mitogenomes...

Data from: Transition in sexual system and sex chromosome evolution in the tadpole shrimp Triops cancriformis

Thomas C. Mathers, Robert L. Hammond, Ronald A. Jenner, Bernd Hänfling, Jennifer Atkins & Africa Gómez
Transitions in sexual system and reproductive mode may affect the course of sex chromosome evolution, for instance by altering the strength of sexually antagonistic selection. However, there have been few studies of sex chromosomes in systems where such transitions have been documented. The European tadpole shrimp, Triops cancriformis, has undergone a transition from dioecy to androdioecy (a sexual system where hermaphrodites and males coexist), offering an excellent opportunity to test the impact of this transition...

Data from: Uncovering cryptic parasitoid diversity in Horismenus (Chalcidoidea, Eulophidae)

Sarah G. Kenyon, Sven Buerki, Christer Hansson, Nadir Alvarez & Betty Benrey
Horismenus parasitoids are an abundant and understudied group of eulophid wasps found mainly in the New World. Recent surveys based on morphological analyses in Costa Rica have quadrupled the number of named taxa, with more than 400 species described so far. This recent revision suggests that there is still a vast number of unknown species to be identified. As Horismenus wasps have been widely described as parasitoids of insect pests associated with crop plants, it...

Data from: Implementing and testing Bayesian and Maximum likelihood supertree methods in phylogenetics

Wasiu A. Akanni, Mark Wilkinson, Peter G. Foster, Christopher J. Creevey & Davide Pisani
Since their advent, supertrees have been increasingly used in large-scale evolutionary studies requiring a phylogenetic framework and substantial efforts have been devoted to developing a wide variety of supertree methods (SMs). Recent advances in supertree theory have allowed the implementation of maximum likelihood (ML) and Bayesian SMs, based on using an exponential distribution to model incongruence between input trees and the supertree. Such approaches are expected to have advantages over commonly used non-parametric SMs, e.g....

Data from: A genomewide catalogue of single nucleotide polymorphisms in white-beaked and Atlantic white-sided dolphins

Ruth Fernández, Mikkel Schubert, A. M. Vargas-Velázquez, Andrew Brownlow, Gisli A. Víkingsson, Ursula Siebert, Lasse Fast Jensen, Nils Øien, Dave Wall, Emer Rogan, Bjarni Mikkelsen, Willy Dabin, Gilles Guillot, Ludovic Orlando, A. H. Alfarhan, S. A. Alquraishi & K. A. S. Al-Rasheid
The field of population genetics is rapidly moving into population genomics as the quantity of data generated by high-throughput sequencing platforms increases. In this study, we used restriction-site-associated DNA sequencing (RADSeq) to recover genomewide genotypes from 70 white-beaked (Lagenorhynchus albirostris) and 43 Atlantic white-sided dolphins (L. acutus) gathered throughout their north-east Atlantic distribution range. Both species are at a high risk of being negatively affected by climate change. Here, we provide a resource of 38...

Data from: Multilocus species trees show the recent adaptive radiation of the mimetic Heliconius butterflies

Krzysztof M. Kozak, Niklas Wahlberg, Andrew Neild, Kanchon K. Dasmahapatra, James Mallet, Chris D. Jiggins & Andrew F. E. Neild
Müllerian mimicry among Neotropical Heliconiini butterflies is an excellent example of natural selection, associated with the diversification of a large continental-scale radiation. Some of the processes driving the evolution of mimicry rings are likely to generate incongruent phylogenetic signals across the assemblage, and thus pose a challenge for systematics. We use a dataset of 22 mitochondrial and nuclear markers from 92% of species in the tribe, obtained by Sanger sequencing and de novo assembly of...

Data from: No deep diving: evidence of predation on epipelagic fish for a stem beaked whale from the late Miocene of Peru

Olivier Lambert, Alberto Collareta, Walter Landini, Klaas Post, Benjamin Ramassamy, Claudio Di Celma, Mario Urbina-Schmitt & Giovanni Bianucci
Although modern beaked whales (Ziphiidae) are known to be highly specialized toothed whales that predominantly feed at great depths upon benthic and benthopelagic prey, only limited palaeontological data document this major ecological shift. We report on a ziphiid–fish assemblage from the Late Miocene of Peru that we interpret as the first direct evidence of a predator–prey relationship between a ziphiid and epipelagic fish. Preserved in a dolomite concretion, a skeleton of the stem ziphiid Messapicetus...

Registration Year

  • 2015
    16

Resource Types

  • Dataset
    16

Affiliations

  • Natural History Museum
    16
  • University of Copenhagen
    3
  • Imperial College London
    3
  • University College London
    2
  • Institut National de Recherche en Santé Publique
    1
  • National University of San Marcos
    1
  • Ghent University
    1
  • National University of Ireland
    1
  • University of Neuchâtel
    1
  • Royal Botanic Gardens
    1