205 Works

Data from: Analysis of inbreeding depression in mixed-mating plants provides evidence for selective interference and stable mixed mating

Alice A Winn, Elizabeth Elle, Susan Kalisz, Pierre-Olivier Cheptou, Christopher G Eckert, Carol Goodwillie, Mark O. Johnston, David A Moeller, Richard H Ree, Risa D Sargent & Mario Vallejo-Marín
Hermaphroditic individuals can produce both selfed and outcrossed progeny, termed mixed mating. General theory predicts that mixed-mating populations should evolve quickly toward high rates of selfing, driven by rapid purging of genetic load and loss of inbreeding depression (ID), but the substantial number of mixed-mating species observed in nature calls this prediction into question. Greater average ID reported for selfing than for outcrossing populations is consistent with purging and suggests that mixed-mating taxa in evolutionary...

Data from: Species tree estimation of North American chorus frogs (Hylidae: Pseudacris) with parallel tagged amplicon sequencing

Lisa N. Barrow, Hannah F. Ralicki, Sandra A. Emme & Emily Moriarty Lemmon
The field of phylogenetics is changing rapidly with the application of high-throughput sequencing to non-model organisms. Cost-effective use of this technology for phylogenetic studies, which often include a relatively small portion of the genome but several taxa, requires strategies for genome partitioning and sequencing multiple individuals in parallel. In this study we estimated a multilocus phylogeny for the North American chorus frog genus Pseudacris using anonymous nuclear loci that were recently developed using a reduced...

Data from: Complex constraints on allometry revealed by artificial selection on the wing of Drosophila melanogaster

Geir H. Bolstad, Jason A. Cassara, Eladio Márquez, Thomas F. Hansen, Kim Van Der Linde, David Houle & Christophe Pélabon
Precise exponential scaling with size is a fundamental aspect of phenotypic variation. These allometric power laws are often invariant across taxa and have long been hypothesized to reflect developmental constraints. Here we test this hypothesis by investigating the evolutionary potential of an allometric scaling relationship in drosophilid wing shape that is nearly invariant across 111 species separated by at least 50 million years of evolution. In only 26 generations of artificial selection in a population...

Data from: Local pain dynamics during constant exhaustive exercise

Agnė Slapšinskaitė, Selen Razon, Natàlia Balagué, Robert Hristovski, Gershon Tenenbaum & Natàlia Balagué Serre
The purpose of this study was to delineate the topological dynamics of pain and discomfort during constant exercise performed until volitional exhaustion. Eleven physical education students were tested while cycling and running at a “hard” intensity level (e.g., corresponding to Borg’s RPE (6–20) = 15). During the tests, participants reported their discomfort and pain on a body map every 15s. “Time on task” for each participant was divided into five equal non-overlapping temporal windows within...

Data from: Phenotypic and genomic plasticity of alternative male reproductive tactics in sailfin mollies

Bonnie A. Fraser, Ilana Janowitz, Margaret Thairu, Joseph Travis & Kimberly A. Hughes
A major goal of modern evolutionary biology is to understand the causes and consequences of phenotypic plasticity, the ability of a single genotype to produce multiple phenotypes in response to variable environments. While ecological and quantitative genetic studies have evaluated models of the evolution of adaptive plasticity, some long-standing questions about plasticity require more mechanistic approaches. Here, we address two of those questions: does plasticity facilitate adaptive evolution? And do physiological costs place limits on...

Data from: Offspring fitness varies with parental extra-pair status in song sparrows, Melospiza melodia

Rebecca J. Sardell, Peter Arcese & Jane M. Reid
Numerous studies have tested for indirect selection on female extra-pair reproduction (EPR) by quantifying whether extra-pair young (EPY) are fitter than their within-pair young (WPY) maternal half-siblings. In contrast, the hypothesis that offspring of EPY and WPY (rather than the EPY and WPY themselves) differ in fitness has not been tested, even though inter-generational effects of parental extra-pair status on offspring fitness could alter the magnitude and direction of indirect selection on EPR. We tested...

Data from: Myelin basic protein induces neuron-specific toxicity by directly damaging the neuronal plasma membrane

Jie Zhang, Xin Sun, Sixin Zheng, Xiao Liu, Jinghua Jin, Yi Ren & Jianhong Luo
The central nervous system (CNS) insults may cause massive demyelination and lead to the release of myelin-associated proteins including its major component myelin basic protein (MBP). MBP is reported to induce glial activation but its effect on neurons is still little known. Here we found that MBP specifically bound to the extracellular surface of the neuronal plasma membrane and induced neurotoxicity in vitro. This effect of MBP on neurons was basicity-dependent because the binding was...

Data from: Female mating preferences and offspring survival: testing hypotheses on the genetic basis of mate choice in a wild lekking bird

Rebecca J. Sardell, Bart Kempenaers & Emily H. DuVal
Indirect benefits of mate choice result from increased offspring genetic quality and may be important drivers of female behaviour. ‘Good-genes-for-viability’ models predict that females prefer mates of high additive genetic value, such that offspring survival should correlate with male attractiveness. Mate choice may also vary with genetic diversity (e.g. heterozygosity) or compatibility (e.g. relatedness), where the female's genotype influences choice. The relative importance of these nonexclusive hypotheses remains unclear. Leks offer an excellent opportunity to...

Data from: A passerine bird's evolution corroborates the geologic history of the island of New Guinea

Kristy Deiner, Alan R. Lemmon, Andrew L. Mack, Robert C. Fleischer & John P. Dumbacher
New Guinea is a biologically diverse island, with a unique geologic history and topography that has likely played a role in the evolution of species. Few island-wide studies, however, have examined the phylogeographic history of lowland species. The objective of this study was to examine patterns of phylogeographic variation of a common and widespread New Guinean bird species (Colluricincla megarhyncha). Specifically, we test the mechanisms hypothesized to cause geographic and genetic variation (e.g., vicariance, isolation...

Data from: Contemporary evolution of sea urchin gamete-recognition proteins: experimental evidence of density-dependent gamete performance predicts shifts in allele frequencies over time

Don R. Levitan
Species whose reproductive strategies evolved at one density regime might be poorly adapted to other regimes. Field and laboratory experiments on the sea urchin Strongylocentrotus franciscanus examined the influences of the two most common sperm bindin alleles, which differ at two amino acid sites, on fertilization success. In the field experiment, the Arginine/Glycine (RG) genotype performed best at low densities and the Glycine/Arginine (GR) genotype at high densities. In the lab experiment, the RG genotype...

Data from: Ant community and habitat limit colony establishment by the fire ant, Solenopis invicta

Walter R. Tschinkel & Joshua R. King
Hypotheses of community assembly include limitation through habitat physical attributes, as well as competition among species. Such hypotheses must be resolved through experimental tests. Previous experiments have shown that: (i) fire ants of the monogyne social form occur mostly in highly disturbed habitat where they do not compete with mature colonies of co-occurring ants; (ii) in native pine forests of northern Florida, habitat disturbance favours fire ants while simultaneously reducing native ants; (iii) fire ants...

Data from: Global biogeography of mating system variation in seed plants

David A. Moeller, Ryan D. Briscoe Runquist, Annika M. Moe, Monica A. Geber, Carol Goodwillie, Pierre-Olivier Cheptou, Christopher G. Eckert, Elizabeth Elle, Mark O. Johnston, Susan Kalisz, Richard H. Ree, Risa D. Sargent, Mario Vallejo-Marin & Alice A. Winn
Latitudinal gradients in biotic interactions have been suggested as causes of global patterns of biodiversity and phenotypic variation. Plant biologists have long speculated that outcrossing mating systems are more common at low than high latitudes owing to a greater predictability of plant–pollinator interactions in the tropics; however, these ideas have not previously been tested. Here, we present the first global biogeographic analysis of plant mating systems based on 624 published studies from 492 taxa. We...

Data from: Local adaptation of fish consumers alters primary production through changes in algal community composition and diversity

Ron D. Bassar, Brynne L. Bryan, Michael C. Marshall, Catherine M. Pringle, David N. Reznick, Joseph Travis & Ronald D. Bassar
Ecological research has focused on understanding how changes in consumer abundance affect community structure and ecosystem processes. However, there is increasing evidence that evolutionary changes in consumers can also alter community structure and ecosystem processes. Typically, the effects of consumer phenotype on communities and ecosystem processes are measured as net effects that integrate numerous ecological pathways. Here, we analyze new data from experimental manipulations of Trinidadian guppy Poecilia reticulata presence, density and phenotype to examine...

Data from: Highest plasticity of carbon concentrating mechanisms in earliest evolved phytoplankton

Dedmer B. Van De Waal, Karen M. Brandenburg, Joost Keuskamp, Scarlett Trimborn, Sebastian Rokitta, Sven Alexander Kranz & Björn Rost
Phytoplankton photosynthesis strongly relies on the operation of carbon‐concentrating mechanisms (CCMs) to accumulate CO2 around their carboxylating enzyme ribulose‐1,5‐bisphosphate carboxylase/oxygenase (RuBisCO). Earlier evolved phytoplankton groups were shown to exhibit higher CCM activities to compensate for their RuBisCO with low CO2 specificities. Here, we tested whether earlier evolved phytoplankton groups also exhibit a higher CCM plasticity. To this end, we collected data from literature and applied a Bayesian linear meta‐analytic model. Our results show that with...

Data from: Inbreeding shapes the evolution of marine invertebrates

Kevin Olsen, Will Ryan, Alice Winn, Ellen Kosman, Jose Moscoso, Stacy Krueger-Hadfield, Scott Burgess, David Carlon, Richard Grosberg, Susan Kalisz & Don Levitan
Inbreeding is a potent evolutionary force shaping the distribution of genetic variation within and among populations of plants and animals. Yet, our understanding of the forces shaping the expression and evolution of non-random mating in general, and inbreeding in particular, remains remarkably incomplete. Most research on plant mating systems focuses on self-fertilization and its consequences for automatic selection, inbreeding depression, purging, and reproductive assurance, whereas studies of animal mating systems have often assumed that inbreeding...

Spatially Quantifying Forest Damage from a Category 5 Hurricane

Joseph St. Peter, Chad Anderson, Jason Drake & Paul Medley
Hurricane Michael made landfall on Mexico Beach, Florida panhandle as a Category 5 storm on October 10th, 2018. The storm had a large impact on the forests in the Florida panhandle and into Georgia. In this study we use Sentinel-2 imagery and 248 forest plots collected prior to landfall in 2018 in the forests impacted by Hurricane Michael to build a general linear model of tree basal area across the landscape. The basal area model...

Data from: Male courtship preference during seasonal sympatry may maintain population divergence

Abigail A. Kimmitt, Samantha L. Dietz, Dustin G. Reichard & Ellen D. Ketterson
Animal migration can lead to a population distribution known as seasonal sympatry, in which closely related migrant and resident populations of the same species co-occur in sympatry during part of the year, but are otherwise allopatric. During seasonal sympatry in early spring, residents may initiate reproduction before migrants depart, presenting an opportunity for gene flow. Differences in reproductive timing between migrant and resident populations may favor residents that exhibit preferences for potential mates of similar...

Supplementary information for: Using networks to identify structure in phylogenetic tree sets

Jeremy Brown, Melissa Marchand, Wen Huang, Guifang Zhou, Genevieve Mount, Jeremy Ash, Kyle Gallivan & James Wilgenbusch
Modern phylogenomic studies produce large sets of trees that can represent variation in inferred phylogenies across genes, uncertainty in estimated phylogenies for a given gene, or both. Standard practice is to condense this variation down to a small set of point estimates or consensus trees in order to facilitate display and interpretation. However, doing so results in the loss of enormous amounts of information about the structure of the underlying tree set. Here, we propose...

Data from: Gene flow and species delimitation in fishes of Western North America: Flannelmouth (Catostomus latipinnis) and Bluehead sucker (C. Pantosteus discobolus)

Max Bangs, Marlis Douglas, Tyler Chafin & Michael Douglas
The delimitation of species-boundaries, particularly those obscured by reticulation, is a critical step in contemporary biodiversity assessment. It is especially relevant for conservation and management of indigenous fishes in western North America, represented herein by two species with dissimilar life-histories co-distributed in the highly modified Colorado River (i.e., Flannelmouth Sucker, Catostomus latipinnis; Bluehead Sucker, C. (Pantosteus) discobolus). To quantify phylogenomic patterns and examine proposed taxonomic revisions, we first employed double-digest restriction-site associated DNA sequencing (ddRAD),...

Data from: Kin recognition in guppies uses self-referencing on olfactory cues

Mitchel Daniel & F. Helen Rodd
Kin recognition plays an important role in social behavior and evolution, but the proximate mechanisms by which individuals recognize kin remain poorly understood. In many species, individuals form a “kin template” that they compare against conspecifics’ phenotypes to assess phenotypic similarity–and by association, relatedness. Individuals may form a kin template through self-inspection (i.e. self-referencing) and/or by observing their rearing associates (i.e. family-referencing). However, despite much interest, few empirical studies have successfully disentangled self- and family-referencing....

Data from: Predicting multivariate responses of sexual dimorphism to direct and indirect selection

David Houle & Changde Cheng
Sexual dimorphism is often assumed to result from balancing the strength of antagonistic selection in favor of dimorphism against the degree of constraint imposed by the shared genome of the sexes, reflected in the B matrix of genetic inter-sexual covariances. To investigate the totality of forces shaping dimorphism, we reparameterized the Lande equation to predict changes in trait averages and trait differences between the sexes. As genetic constraints on the evolution of dimorphism in response...

Data from: Large-scale connectivity, cryptic population structure, and relatedness in Eastern Pacific olive ridley sea turtles (Lepidochelys olivacea)

Ian Silver-Gorges, Julianne Koval, Clara Rodriguez-Zarate, Frank Paladino & Mark Jordan
Endangered species are grouped into genetically discrete populations to direct conservation efforts. Mitochondrial Control Region (mtCR) haplotypes are used to elucidate deep divergences between populations, as compared to nuclear microsatellites that can detect recent structuring. When prior populations are unknown, it is useful to subject microsatellite data to clustering and/or ordination population inference. Olive ridley sea turtles (Lepidochelys olivacea) are the most abundant sea turtle, yet few studies have characterized olive ridley population structure. Recently,...

Living and fossil Ginkgo leaves

Luke Mander, Haibin Hang, Martin Bauer & Washington Mio
The data presented here are a collection of images of living and fossil Ginkgo leaves. Mature and fully expanded leaves were harvested from a reproductively immature Ginkgo biloba tree growing in partial shade as a specimen on the campus of The Open University, UK. The specimen was ascended using a ladder and seven branches growing towards the West at approximately halfway up the specimen were removed from the trunk using a saw. Every leaf growing...

Data from: Ancestral ecological regime shapes reaction to food limitation in the Least Killifish, Heterandria formosa

Anja Felmy, Jeff Leips & Joseph Travis
Populations with different densities often show genetically-based differences in life histories. The divergent life histories could be driven by several agents of selection, one of which is variation in per-capita food levels. Its relationship with population density is complex, as it depends on overall food availability, individual metabolic demand, and food-independent factors potentially affecting density, such as predation intensity. Here we present a case study of two populations of a small live-bearing freshwater fish, one...

Dose relationships can exacerbate, mute, or reverse the impact of heterospecific host density on infection prevalence

Patrick Clay, Michael Cortez & Meghan Duffy
The likelihood an individual becomes infected depends on the community in which it is embedded. For environmentally transmitted parasites, host community composition can alter host density, the density of parasites that hosts encounter in the environment, and the dose to which hosts are subsequently exposed. While some multi-host theory incorporates some of these factors (e.g., competition among hosts), it does not currently consider the nonlinear relationships between parasite exposure dose and per-propagule infectivity (dose-infectivity relationships),...

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  • Florida State University
  • Guilin Medical University
  • Henan University
  • Sun Yat-sen University
  • Arizona State University
  • National Institute of Diabetes and Digestive and Kidney Diseases
  • Wuhan University of Science and Technology
  • Guangxi Institute of Botany
  • Southwest Medical University
  • Harvard University