85 Works

Population genomic response to geographic gradients by widespread and endemic fishes of the Arabian Peninsula

Joseph DiBattista, Pablo Saenz-Agudelo, Marek Piatek, Fernando Cagua, Brian Bowen, John Choat, Luiz Rocha, Michelle Gaither, Jean-Paul Hobbs, Tane Sinclair-Taylor, Jennifer McIlwain, Mark Priest, Camrin Braun, Nigel Hussey, Steven Kessel & Michael Berumen
Genetic structure within marine species may be driven by local adaptation to their environment, or alternatively by historical processes, such as geographic isolation. The gulfs and seas bordering the Arabian Peninsula offer an ideal setting to examine connectivity patterns in coral reef fishes with respect to environmental gradients and vicariance. The Red Sea is characterized by a unique marine fauna, historical periods of desiccation and isolation, as well as environmental gradients in salinity, temperature, and...

Data from: Large-scale, multi-directional larval connectivity among coral reef fish populations in the Great Barrier Reef Marine Park

David H. Williamson, Hugo B. Harrison, Glenn R. Almany, Michael L. Berumen, Michael Bode, Mary C. Bonin, Severine Choukroun, Peter J. Doherty, Ashley J. Frisch, Pablo Saenz-Agudelo & Geoffrey P. Jones
Larval dispersal is the key process by which populations of most marine fishes and invertebrates are connected and replenished. Advances in larval tagging and genetics have enhanced our capacity to track larval dispersal, assess scales of population connectivity, and quantify larval exchange among no-take marine reserves and fished areas. Recent studies have found that reserves can be a significant source of recruits for populations up to 40 km away, but the scale and direction of...

Data from: Lizards on ice: evidence for multiple refugia in Liolaemus pictus (Liolaemidae) during the Last Glacial Maximum in the southern Andean beech forests

Iván Vera-Escalona, Guillermo D’Elía, Nicolás Gouin, Frank M. Fontanella, Carla Muñoz-Mendoza, , Pedro F. Victoriano, Guillermo D'Elía & Jack W. Sites
Historical climate changes and orogenesis are two important factors that have shaped intraspecific biodiversity patterns worldwide. Although southern South America has experienced such complex events, there is a paucity of studies examining the effects on intraspecific diversification in this part of the world. Liolaemus pictus is the southernmost distributed lizard in the Chilean temperate forest, whose genetic structure has likely been influenced by Pleistocene glaciations. We conducted a phylogeographic study of L. pictus in Chile...

Data from: A late Pleistocene human footprint from the Pilauco archaeological site, Northern Patagonia, Chile

Karen Moreno, Juan Enrique Bostelmann, Cintia Macías, Ximena Navarro-Harris, Ricardo De Pol-Holz & Mario Pino
The present study describes the discovery of a singular sedimentary structure corresponding to an ichnite that was excavated at the paleo-archaeological site Pilauco (Osorno, Chile). The trace fossil is associated with megafauna bones, plant material and unifacial lithic tools. Here we present a detailed analysis of the Pilauco ichnite and associated sedimentary structures, as well as new radiocarbon data. The ichnological analysis confidently assigns the trace to the ichnospecies Hominipes modernus—a hominoid footprint usually related...

Data from: Conformational dynamics in TRPV1 channels reported by an encoded coumarin amino acid

Ximena Steinberg, Marina A. Kasimova, Deny Cabezas-Bratesco, Jason D. Galpin, Ernesto Ladron-De-Guevara, Federica Villa, Vincenzo Carnevale, Leon Islas, Christopher A. Ahern & Sebastian E Brauchi
TRPV1 channels support the detection of noxious and nociceptive input. Currently available functional and structural data suggest that TRPV1 channels have two gates within their permeation pathway: one formed by a ′bundle-crossing′ at the intracellular entrance and a second constriction at the selectivity filter. To describe conformational changes associated with channel gating, the fluorescent non-canonical amino acid coumarin-tyrosine was genetically encoded at Y671, a residue proximal to the selectivity filter. Total internal reflection fluorescence microscopy...

Data from: Seascape genetics along environmental gradients in the Arabian Peninsula: insights from ddRAD sequencing of anemonefishes

Pablo Saenz-Agudelo, Joseph D. DiBattista, Marek J. Piatek, Michelle R. Gaither, Hugo B. Harrison, Gerrit B. Nanninga & Michael L. Berumen
Understanding the processes that shape patterns of genetic structure across space is a central aim of landscape genetics. However, it remains unclear how geographic features and environmental variables shape gene flow, particularly for marine species in large complex seascapes. Here, we evaluated the genomic composition of the two-band anemonefish Amphiprion bicinctus across its entire geographic range in the Red Sea and Gulf of Aden, as well as its close relative, Amphiprion omanensis endemic to the...

Data from: The quantitative genetics of physiological and morphological traits in an invasive terrestrial snail: additive versus non-additive genetic variation

Roberto F. Nespolo, Jose Luis Bartheld, Avia González, Andrea Bruning, Derek A. Roff, Leonardo D. Bacigalupe & Juan Diego Gaitan
1. The distribution of additive versus non-additive genetic variation in natural populations represents a central topic of research in evolutionary/organismal biology. For evolutionary physiologists, functional or whole-animal performance traits (“physiological traits”) are frequently studied assuming they are heritable and variable in populations. 2. Physiological traits of evolutionary relevance are those functional capacities measured at the whole-organism level, with a potential impact on fitness. They can be classified as capacities (or performances) or costs, the former...

Data from: Mediterranean and temperate treelines are controlled by different environmental drivers

Frida I. Piper, Benjamín Viñegla, Juan Carlos Linares, Jesús Julio Camarero, Lohengrin A. Cavieres & Alex Fajardo
The growth limitation hypothesis (GLH) is the most accepted explanation for treeline formation, but it has been scarcely examined in Mediterranean treelines, which are located at lower elevations than temperate treelines. The GLH states that low temperature is the ultimate environmental driver for treeline formation, constraining C-sinks (i.e. tissue formation) more than C-sources. The GLH predicts similar or increasing (but not decreasing) non-structural carbohydrate (NSC) concentrations with elevation throughout the course of the growing season....

Data from: Predicting the cover and richness of intertidal macroalgae in remote areas: a case study in the Antarctic Peninsula

Jonne Kotta, Nelson Valdivia, Tiit Kutser, Kaire Toming, Merli Rätsep & Helen Orav-Kotta
1. Antarctica is an iconic region for scientific explorations as it is remote and a critical component of the global climate system. Recent climate change causes dramatic retreat of ice in Antarctica with associated impacts to its coastal ecosystem. These anthropogenic impacts have a potential to increase habitat availability for Antarctic intertidal assemblages. Assessing the extent and ecological consequences of these changes requires us to develop accurate biotic baselines and quantitative predictive tools. 2. In...

Data from: High temporal variability in the occurrence of consumer–resource interactions in ecological networks

Daniela N. Lopez, Patricio A. Camus, Nelson Valdivia & Sergio A. Estay
Ecological networks have been used to represent interactions between species as fixed linkages despite that populations naturally oscillate over time and space. As such, the influence of the persistence of linkages between species in communities has been overlooked. Unfortunately, empirical analysis of the temporal variation of trophic networks is constrained by the lack of data with high spatial, temporal and taxonomic resolution. Here, we evaluate the spatiotemporal variability of multiple consumer-resource interactions to quantify the...

Data from: Severity of impacts of an introduced species corresponds with regional eco-evolutionary experience

Kimberley T. Davis, Ragan M. Callaway, Alex Fajardo, Anibal Pauchard, Martin A Nunez, Rob W Brooker, Bruce D. Maxwell, Romina D Dimarco, Duane A Peltzer, Bill Mason, Seppo Ruotsalainen, Anne C S McIntosh, Robin J Pakeman, Alyssa Laney Smith & Michael Gundale
Invasive plant impacts vary widely across introduced ranges. We tested the hypothesis that differences in the eco-evolutionary experience of native communities with the invader correspond with the impacts of invasive species on native vegetation, with impacts increasing with ecological novelty. We compared plant species richness and composition beneath Pinus contorta to that in adjacent vegetation and other P. contorta stands across a network of sites in its native (Canada and USA) and non-native (Argentina, Chile,...

Data from: Kelp and dolphin gulls cause perineal wounds in South American fur seal pups (Arctocephalus australis) at Guafo Island, Chilean Patagonia

Mauricio Seguel, Francisco Muñoz, Felipe Montalva, Diego Perez-Venegas, Héctor Paves & Nicole Gottdenker
During five reproductive seasons, we documented the presence, extent and origin of perineal wounds in South American fur seal pups (Arctocephalus australis) on Guafo Island, Northern Chilean Patagonia. The seasonal prevalence of perineal wounds ranged from 5 to 9%, and new cases were more common at the end of the breeding season (February), when pups were on average two months old and were actively expelling hookworms (Uncinaria sp). Histologically, wounds corresponded to marked ulcerative lymphoplasmacytic...

After a catastrophe, a little bit of sex is better than nothing: genetic consequences of a major earthquake on asexual and sexual populations

Ronan Becheler, Marie-Laure Guillemin, Solenn Stoeckel, Stéphane Mauger, Alice Saunier, Antonio Brante, Destombe Christophe & Valero Myriam
Catastrophic events can have profound effects on the demography of a population and consequently, on genetic diversity. The dynamics of post-catastrophic recovery as well as the role of sexual versus asexual reproduction in buffering the effects of massive perturbations remain poorly understood, in part because the opportunity to document genetic diversity before and after such events is rare. Six natural (purely sexual) and seven cultivated (mainly clonal due to farming practices) populations of the red...

Data from: Pro-inflammatory immune response is linked to wintering habitat in a migratory shorebird

José Mª Abad-Gómez, Auxiliadora Villegas, Jorge S. Gutiérrez, Manuel Parejo, Juan G. Navedo, Juan M. Sánchez-Guzmán & Afonso Rocha
Migratory shorebirds (Charadrii) show a strong dichotomy in their breeding and wintering strategies: Arctic-breeding species typically spend the wintering season in marine habitats, while more southerly breeding species tend to do so in freshwater habitats where pathogens and parasites, particularly vector-borne blood parasites, are generally more abundant. Thus, it has been hypothesized that the former group may reduce their investment in immunity, but experimental data supporting this hypothesis are lacking. Moreover, whether this contrasting habitat...

Tumour suppressor genes fasta files for orthologous groups and hierarchical orthologous groups

Daniela Tejada-Martinez, João Pedro De Magalhães & Juan C. Opazo
Cetaceans are the longest-living species of mammals and the largest in the history of the planet. They have developed mechanisms against diseases such cancer, although the underlying molecular bases of these remain unknown. The goal of this study was to investigate the role of natural selection in the evolution of 1077 tumour suppressor genes (TSGs) in cetaceans. We used a comparative genomic approach to analyse two sources of molecular variation in the form of dN/dS...

Data from: Comparative phylogeography of three host sea anemones in the Indo-Pacific

Pablo Saenz-Agudelo, Madeleine Emms, Emily Giles, Remy Gatins, Gerrit Nanninga, Anna Scott, Jean Paul Hobbs, Ashley Frisch, Suzanne Mills, Ricardo Beldade & Michael Berumen
Aim The mutualistic relationship between anemones and anemonefishes is one of the most iconic examples of symbiosis. However, while anemonefishes have been extensively studied in terms of genetic connectivity, such information is lacking entirely for host sea anemones. Here, we provide the first information on the broad-scale population structure and phylogeographic patterns of three species of host sea anemone, Heteractis magnifica, Stichodactyla mertensii, and Entacmaea quadricolor. We evaluate if there is concordance in genetic structure...

Synthesis of batrachochytrium dendrobatidis infection in South America: amphibian species under risk and areas to focus research and disease mitigation

Claudio Azat, Mario Alvarado-Rybak, Jaiber Solano-Iguaran, Anibal Velasco, Andrés Valenzuela-Sánchez, Sandra Flechas, Alexandra Peñafiel-Ricaurte, Andrew Cunningham & Leonardo Bacigalupe
Amphibian chytridiomycosis, caused by Batrachochytrium dendrobatidis (Bd), has been recognized as the infectious disease causing the most catastrophic loss of biodiversity known to science, with South America being the most impacted region. We tested whether Bd prevalence is distributed among host taxonomy, ecoregion, conservation status and habitat preference in South America. Here we provide a synthesis on the extent of Bd infection across South America based on 21,648 molecular diagnostic assays, roles of certain species...

Morphometric, gametic and parasitological data of clam Ameghynomia antiqua and DNAmt sequences of parasite

Marcela Astorga
The clam Ameghynomia antiqua is a highly important resource for fisheries due to its high catches volume. It is the bivalve mollusk with the highest fisheries landings from natural beds on the Pacific coast of southern South America; however, studies of the reproductive conditions of this species are scarce and date back many years. The object of the present work was to evaluate the reproductive characteristics of the species, analysing its gametogenic and gonadal cycle,...

Andean non-volant small mammals: a dataset of community assemblages of non-volant small mammals from the high Andes

Edgardo M. Rengifo, Jorge Brito, Jorge Pablo Jayat, Raisa Cairampoma, Agustina Novillo, Natali Hurtado, Ignacio Ferro, Cesar E. Medina, Alonso Arguero, Sergio Solari, Jose Urquizo, Ariatna Villareal, Elena Vivar, Pablo Teta, Marcial Quiroga-Carmona, Guillermo D'Elía & Alexandre Reis Percequillo
Information from diversity inventories is used to study patterns of biodiversity and species distribution; likewise, it may be useful to identify priority areas for conservation, and to guide future sampling efforts. In this context, we compiled information on non-volant small mammal communities from the high Andes (> 2,000 m.). Here we present an open resource data set containing information diversity (species composition, number of individuals captured ), inventory design (type of traps, sampling efforts), and...

Data from: Introduced Drosophila subobscura populations perform better than native populations during an oviposition choice task due to increased fecundity but similar learning ability

Julien Foucaud, Céline Moreno, Marta Pascual, Enrico L. Rezende, Luis E. Castañeda, Patricia Gibert & Frederic Mery
The success of invasive species is tightly linked to their fitness in a putatively novel environment. While quantitative components of fitness have been studied extensively in the context of invasive species, fewer studies have looked at qualitative components of fitness, such as behavioral plasticity, and their interaction with quantitative components, despite intuitive benefits over the course of an invasion. In particular, learning is a form of behavioral plasticity that makes it possible to finely tune...

Data from: Contrasting definitive hosts as determinants of the genetic structure in a parasite with complex life cycle along the Southeastern Pacific

Zambra López, Leyla Cárdenas, Fernando Runil & M. Teresa González
The spatial genetic structure (and gene flow) of parasites with complex life cycles, such as digeneans, has been attributed mainly to the dispersion ability of the most mobile host, which most often corresponds to the definitive host (DH). In this study, we compared the genetic structure and diversity of adult Neolebouria georgenascimentoi in two fish species (DHs) that are extensively distributed along the Southeastern Pacific (SEP). The analysis was based on the cytochrome oxidase subunit...

Data from: The role of marine reserves in the replenishment of a locally-impacted population of anemonefish on the Great Barrier Reef

Mary C. Bonin, Hugo B. Harrison, David H. Williamson, Ashley J. Frisch, Pablo Saenz-Agudelo, Michael L. Berumen & Geoffrey P. Jones
The development of parentage analysis to track the dispersal of juvenile offspring has given us unprecedented insight into the population dynamics of coral reef fishes. These tools now have the potential to inform fisheries management and species conservation, particularly for small fragmented populations under threat from exploitation and disturbance. In this study we resolve patterns of larval dispersal for a population of the anemonefish Amphiprion melanopus in the Keppel Islands (southern Great Barrier Reef). Habitat...

Data from: A phylogenetic analysis of macroevolutionary patterns in fermentative yeasts

Rocío Paleo-López, Julian Fernando Quintero-Galvis, Jaiber J. Solano-Iguaran, Angela M. Sanchez-Salazar, Juan Diego Gaitán-Espitia, Roberto F. Nespolo & Juan D. Gaitan-Espitia
When novel sources of ecological opportunity are available, physiological innovations can trigger adaptive radiations. This could be the case of yeasts (Saccharomycotina), in which an evolutionary novelty is represented by the capacity to exploit simple sugars from fruits (fermentation). During adaptive radiations, diversification and morphological evolution are predicted to slow-down after early bursts of diversification. Here, we performed the first comparative phylogenetic analysis in yeasts, testing the “early burst” prediction on species diversification and also...

Data from: Hybridization between two cryptic filamentous brown seaweeds along the shore: analysing pre- and post-zygotic barriers in populations of individuals with varying ploidy levels

Alejandro E. Montecinos, Marie L. Guillemin, Lucia Couceiro, Akira F. Peters, Solenn Stoeckel, Myriam Valero & Marie-Laure Guillemin
We aimed to study the importance of hybridization between two cryptic species of the genus Ectocarpus, a group of filamentous algae with haploid-diploid life cycles that include the principal genetic model organism for the brown algae. In haploid-diploid species, the genetic structure of the two phases of the life cycle can be analysed separately in natural populations. Such life cycles provide a unique opportunity to estimate the frequency of hybrid genotypes in diploid sporophytes and...

Data from: Sex bias in ability to cope with cancer: Tasmanian devils and facial tumour disease.

Manuel Ruiz-Aravena, Menna E. Jones, Scott Carver, Sergio Estay, Camila Espejo, Andrew Storfer & Rodrigo K. Hamede
Knowledge of the ecological dynamics between hosts and pathogens during the initial stages of disease emergence is crucial to understanding the potential for evolution of new interspecific interactions. Tasmanian devil (Sarcophilus harrisii) populations have declined precipitously owing to infection by a transmissible cancer (devil facial tumour disease, DFTD) that emerged approximately 20 years ago. Since the emergence of DFTD, and as the disease spreads across Tasmania, the number of devil has dropped up to 90%...

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