14 Works

Data from: Host-specialist lineages dominate the adaptive radiation of reef coral endosymbionts

Daniel James Thornhill, Allison M. Lewis, Drew C. Wham & Todd Christopher LaJeunesse
Bursts in species diversification are well documented among animals and plants, yet few studies have assessed recent adaptive radiations of eukaryotic microbes. Consequently, we examined the radiation of the most ecologically dominant group of endosymbiotic dinoflagellates found in reef-building corals, Symbiodinium Clade C, using nuclear ribosomal (ITS2), chloroplast (psbAncr), and multilocus microsatellite genotyping. Through a hierarchical analysis of high-resolution genetic data, we assessed whether ecologically distinct Symbiodinium, differentiated by seemingly equivocal rDNA sequence differences, are...

Data from: ‘Manipulation’ without the parasite: altered feeding behaviour of mosquitoes is not dependent on infection with malaria parasites

Lauren J. Cator, Justin George, Simon Blanford, Courtney C. Murdock, Thomas C. Baker, Andrew F. Read & Matthew B. Thomas
Previous studies have suggested that Plasmodium parasites can manipulate mosquito feeding behaviours such as probing, persistence and engorgement rate in order to enhance transmission success. Here, we broaden analysis of this ‘manipulation phenotype’ to consider proximate foraging behaviours, including responsiveness to host odours and host location. Using Anopheles stephensi and Plasmodium yoelii as a model system, we demonstrate that mosquitoes with early stage infections (i.e. non-infectious oocysts) exhibit reduced attraction to a human host, whereas...

Data from: Calcareous nannoplankton ecology and community change across the Paleocene-Eocene Thermal Maximum

Leah J. Schneider, Timothy J. Bralower, Lee R. Kump & Mark E. Patzkowsky
The Paleocene-Eocene Thermal Maximum (PETM; ca. 55.8 Ma) is thought to coincide with a profound but entirely transient change among nannoplankton communities throughout the ocean. Here we explore the ecology of nannoplankton during the PETM by using multivariate analyses of a global data set that is based upon the distribution of taxa in time and space. We use these results, coupled with stable isotope data and geochemical modeling, to reinterpret the ecology of key genera....

Data from: Restriction to large-scale gene flow versus regional panmixia among cold seep Escarpia spp. (Polychaeta, Siboglinidae)

Dominique A. Cowart, Chunya Huang, Sophie Arnaud-Haond, Susan L. Carney, Charles R. Fisher & Stephen W. Schaeffer
The history of colonization and dispersal in fauna distributed among deep-sea chemosynthetic ecosystems remains enigmatic and poorly understood because of an inability to mark and track individuals. A combination of molecular, morphological and environmental data improves understanding of spatial and temporal scales at which panmixia, disruption of gene flow or even speciation may occur. Vestimentiferan tubeworms of the genus Escarpia are important components of deep -sea cold seep ecosystems, as they provide long-term habitat for...

Data from: Blind to morphology: genetics identifies several widespread ecologically common species and few endemics among Indo-Pacific cauliflower corals (Pocillopora, Scleractinia)

Jorge H. Pinzón, Eugenia Sampayo, Evelyn Cox, Leonard J. Chauka, Chaolun Allen Chen, Christian R. Voolstra & Todd C. LaJeunesse
AIM: Using high-resolution genetic markers on samples gathered from across their wide distributional range, we endeavoured to delimit species diversity in reef-building Pocillopora corals. They are common, ecologically important, and widespread throughout the Indo-Pacific, but their phenotypic plasticity in response to environmental conditions and their nearly featureless microskeletal structures confound taxonomic assignments and limit an understanding of their ecology and evolution. LOCATION: Indo-Pacific, Red Sea, Arabian/Persian Gulf. METHODS: Sequence analysis of nuclear ribosomal (internal transcribed...

Data from: Outcomes of co-infection by two potyviruses: implications for the evolution of manipulative strategies

Lucie Salvaudon, Consuelo M. De Moraes & Mark C. Mescher
Recent studies have documented effects of plant-viruses on host plants that appear to enhance transmission by insect vectors. But, almost no empirical work has explored the implications of such apparent manipulation for interactions among co-infecting pathogens. We examined single and mixed infections of two potyviruses, Watermelon mosaic virus (WMV) and Zucchini yellow mosaic virus (ZYMV), that frequently co-occur in cucurbitaceae populations and share the same aphid vectors. We found that ZYMV isolates replicated at similar...

Data from: Aggressive chemotherapy and the selection of drug resistant pathogens

Silvie Huijben, Andrew S. Bell, Derek G. Sim, Danielle Tomasello, Nicole Mideo, Troy Day & Andrew F. Read
Drug resistant pathogens are one of the key public health challenges of the 21st century. There is a widespread belief that resistance is best managed by using drugs to rapidly eliminate target pathogens from patients so as to minimize the probability that pathogens acquire resistance de novo. Yet strong drug pressure imposes intense selection in favor of resistance through alleviation of competition with wild-type populations. Aggressive chemotherapy thus generates opposing evolutionary forces which together determine...

Data from: Reconstructing the origin and dispersal patterns of village chickens across East Africa: insights from autosomal markers

Joram M. Mwacharo, Koh Nomura, Hirofumi Hanada, Takashi Amano, Jianlin L. Han & Olivier Hanotte
Unravelling the genetic history of any livestock species is central to understanding the origin, development and expansion of agricultural societies and economies. Domestic village chickens are widespread in Africa. Their close association with, and reliance on, humans for long range dispersal makes the species an important biological marker in tracking cultural and trading contacts between human societies and civilisations across time. Archaezoological and linguistic evidences suggest a complex history of arrival and dispersion of the...

Data from: Complex environmental drivers of immunity and resistance in malaria mosquitoes

Courtney C. Murdock, Lillian L. Moller-Jacobs & Matthew B. Thomas
Considerable research effort has been directed at understanding the genetic and molecular basis of mosquito innate immune mechanisms. Whether environmental factors interact with these mechanisms to shape overall resistance remains largely unexplored. Here we examine how changes in mean ambient temperature, diurnal temperature fluctuation, and time of day of infection affected the immunity and resistance of Anopheles stephensi to infection with Escherichia coli. We used quantitative PCR to estimate the gene expression of three immune...

Data from: Variation in the transcriptional response of threatened coral larvae to elevated temperatures

Nicholas R. Polato, Iliana B. Baums & Naomi S. Altman
Coral populations have declined worldwide largely due to increased sea surface temperatures. Recovery of coral populations depends in part upon larval recruitment. Many corals reproduce during the warmest time of year when further increases in temperature can lead to low fertilization rates of eggs and high larval mortality. Microarray experiments were designed to capture and assess variability in the thermal stress responses of Acropora palmata larvae from Puerto Rico. Transcription profiles showed a striking acceleration...

Data from: Unrecognized coral species diversity masks differences in functional ecology

Jennifer N. Boulay, Michael E. Hellberg, Jorge Cortés, Iliana B. Baums & J. Cortes
Porites corals are foundation species on Pacific reefs but a confused taxonomy hinders understanding of their ecosystem function and responses to climate change. Here, we show that what has been considered a single species in the eastern tropical Pacific, Porites lobata, includes a morphologically similar yet ecologically distinct species, Porites evermanni. While P. lobata reproduces mainly sexually, P. evermanni dominates in areas where triggerfish prey on bioeroding mussels living within the coral skeleton, thereby generating...

Data from: Utilizing descriptive statements from the Biodiversity Heritage Library to expand the Hymenoptera Anatomy Ontology

Katja C. Seltmann, Zsolt Pénzes, Matthew J. Yoder, Matthew A. Bertone & Andrew R. Deans
Hymenoptera, the insect order that includes sawflies, bees, wasps, and ants, exhibits an incredible diversity of phenotypes, with over 145,000 species described in a corpus of textual knowledge since Carolus Linnaeus. In the absence of specialized training, often spanning decades, however, these articles can be challenging to decipher. Much of the vocabulary is domain-specific (e.g., Hymenoptera biology), historically without a comprehensive glossary, and contains much homonymous and synonymous terminology. The Hymenoptera Anatomy Ontology was developed...

Data from: Chemotherapy, within-host ecology and the fitness of drug-resistant malaria parasites

Silvie Huijben, William A. Nelson, Andrew R. Wargo, Derek G. Sim, Damien R. Drew & Andrew F. Read
A major determinant of the rate at which drug-resistant malaria parasites spread through a population is the ecology of resistant and sensitive parasites sharing the same host. Drug treatment can significantly alter this ecology by removing the drug-sensitive parasites, leading to competitive release of resistant parasites. Here, we test the hypothesis that the spread of resistance can be slowed by reducing drug treatment and hence restricting competitive release. Using the rodent malaria model Plasmodium chabaudi,...

Data from: The population history of endogenous retroviruses in mule deer (Odocoileus hemionus)

Pauline L. Kamath, Daniel Elleder, Le Bao, Paul C. Cross, John H. Powell & Mary Poss
Mobile elements are powerful agents of genomic evolution and can be exceptionally informative markers for investigating species and population-level evolutionary history. While several studies have utilized retrotransposon-based insertional polymorphisms to resolve phylogenies, few population studies exist outside of humans. Endogenous retroviruses are LTR-retrotransposons derived from retroviruses that have become stably integrated in the host genome during past infections and transmitted vertically to subsequent generations. They offer valuable insight into host-virus co-evolution and a unique perspective...

Registration Year

  • 2013
    14

Resource Types

  • Dataset
    14

Affiliations

  • Pennsylvania State University
    14
  • Queen's University
    2
  • Institute of Animal Science
    1
  • National Institutes of Health
    1
  • University of Edinburgh
    1
  • University of Szeged
    1
  • King Abdullah University of Science and Technology
    1
  • University of Hawaii at Manoa
    1
  • Montana State University
    1
  • University of Costa Rica
    1