21 Works

Data from: Maternal size and age shape offspring size in a live-bearing fish, Xiphophorus birchmanni

Holly K. Kindsvater, Gil G. Rosenthal & Suzanne H. Alonzo
Many studies of offspring size focus on differences in maternal investment that arise from ecological factors such as predation or competition. Classic theory predicts that these ecological factors will select for an optimal offspring size, and therefore that variation in a given environment will be minimized. Yet recent evidence suggests maternal traits such as size or age could also drive meaningful variation in offspring size. The generality of this pattern is unclear, as some studies...

Data from: The curious case of Hermodice carunculata (Annelida: Amphinomidae): evidence for genetic homogeneity throughout the Atlantic Ocean and adjacent basins

Joseph B. Ahrens, Elizabeth Borda, Rômulo Barroso, Paulo C. Paiva, Alexandra M. Campbell, Alexander Wolf, Maggy M. Nugues, Greg W. Rouse & Anja Schulze
Over the last few decades, advances in molecular techniques have led to the detection of strong geographic population structure and cryptic speciation in many benthic marine taxa, even those with long-lived pelagic larval stages. Polychaete annelids, in particular, generally show a high degree of population divergence, especially in mitochondrial genes. Rarely have molecular studies confirmed the presence of ‘cosmopolitan’ species. The amphinomid polychaete Hermodice carunculata was long considered the sole species within its genus, with...

Data from: Combined analyses of kinship and FST suggest potential drivers of chaotic genetic patchiness in high gene flow populations

Matthew Iacchei, Tal Ben-Horin, Kimberly A. Selkoe, Christopher E. Bird, Francisco J. Garcia-Rodriguez & Robert J. Toonen
We combine kinship estimates with traditional F-statistics to explain contemporary drivers of population genetic differentiation despite high gene flow. We investigate range-wide population genetic structure of the California spiny (or red rock) lobster (Panulirus interruptus) and find slight, but significant global population differentiation in mtDNA (ΦST = 0.006, P = 0.001; Dest_Chao = 0.025) and seven nuclear microsatellites (FST = 0.004, P < 0.001; Dest_Chao = 0.03), despite the species’ 240- to 330-day pelagic larval...

Data from: Gene trees, species trees and Earth history combine to shed light on the evolution of migration in a model avian system

Gary Voelker, Rauri C. K. Bowie & John Klicka
The evolution of migration in birds has fascinated biologists for centuries. In this study, we performed phylogenetic-based analyses of Catharus thrushes, a model genus in the study of avian migration, and their close relatives. For these analyses, we used both mitochondrial and nuclear genes, and the resulting phylogenies were used to trace migratory traits and biogeographic patterns. Our results provide the first robust assessment of relationships within Catharus and relatives and indicate that both mitochondrial...

Data from: Validating the use of coloration patterns for individual recognition in the worm pipefish using a novel set of microsatellite markers

Nuno M. Monteiro, Rodolfo M. Silva, Mário Cunha, Agostinho Antunes, Adam G. Jones & Maria N. Vieira
In studies of behaviour, ecology and evolution, identification of individual organisms can be an invaluable tool, capable of unravelling otherwise cryptic information regarding group structure, movement patterns, population size and mating strategies. The use of natural markings is arguably the least invasive method for identification. However, to be truly useful natural markings must be sufficiently variable to allow for unique identification, while being stable enough to permit long-term studies. Non-invasive marking techniques are especially important...

Data from: Populations at risk: conservation genetics of kangaroo mice (Microdipodops) of the Great Basin Desert

John J. Andersen, David S. Portnoy, John C. Hafner & Jessica E. Light
The Great Basin Desert of western North America has experienced frequent habitat alterations due to a complex biogeographic history and recent anthropogenic impacts, with the more recent alterations likely resulting in the decline of native fauna and flora. Dark (Microdipodops megacephalus) and pallid (M. pallidus) kangaroo mice are ecological specialists found within the Great Basin Desert and are potentially ideal organisms for assessing ecosystem health and inferring the biogeographic history of this vulnerable region. Herein,...

Data from: Microsatellite analysis of genetic diversity and population structure of Arabian horse populations

Anas Khanshour, Eleanore Conant, Rytis Juras & Ernest Gus Cothran
The Arabian horse ignites imagination throughout the world. Populations of this breed exist in many countries, and recent genetic work has examined the diversity and ancestry of a few of these populations in isolation. Here we explore seven different populations of Arabians represented by 682 horses. Three of these are Middle Eastern populations from near the historical origin of the breed, including Syrian, Persian, and Saudi Arabian. The remaining Western populations are found in Europe...

Data from: Phylogenomics reveals extensive reticulate evolution in Xiphophorus fishes

Rongfeng Cui, Molly Schumer, Karla Kruesi, Ronald Brice Walter, Peter Andolfatto, Gil G. Rosenthal & Ronald Walter
Hybridization is increasingly being recognized as a widespread process, even between ecologically and behaviorally divergent animal species. Determining phylogenetic relationships in the presence of hybridization remains a major challenge for evolutionary biologists, but advances in sequencing technology and phylogenetic techniques are beginning to address these challenges. Here we reconstruct evolutionary relationships among swordtails and platyfishes (Xiphophorus: Poeciliidae), a group of species characterized by remarkable morphological diversity and behavioral barriers to interspecific mating. Past attempts to...

Data from: Signatures of selection in the Iberian honey bee (Apis mellifera iberiensis) revealed by a genome scan analysis of single nucleotide polymorphisms

Julio Chávez-Galarza, Dora Henriques, J. Spencer Johnston, João C. Azevedo, John C. Patton, Irene Muñoz, Pilar De La Rúa & Maria Alice Pinto
Understanding the genetic mechanisms of adaptive population divergence is one of the most fundamental endeavours in evolutionary biology and is becoming increasingly important as it will allow predictions about how organisms will respond to global environmental crisis. This is particularly important for the honey bee, a species of unquestionable ecological and economical importance that has been exposed to increasing human-mediated selection pressures. Here, we conducted a single nucleotide polymorphism (SNP)-based genome scan in honey bees...

Data from: Male killing Spiroplasma protects Drosophila melanogaster against two parasitoid wasps

Jialei Xie, Sarah Butler, Grecia Sanchez & Mariana Mateos
Maternally transmitted associations between endosymbiotic bacteria and insects are diverse and widespread in nature. Owing to imperfect vertical transmission, many heritable microbes have evolved compensational mechanisms to enhance their persistence in host lineages, such as manipulating host reproduction and conferring fitness benefits to host. Symbiont-mediated defense against natural enemies of hosts is increasingly recognized as an important mechanism by which endosymbionts enhance host fitness. Members of the genus Spiroplasma associated with distantly related Drosophila hosts...

Data from: Nutrient regulation strategies differ between cricket morphs that trade-off dispersal and reproduction

Rebecca M. Clark, Ashley McConnell, Anthony J. Zera & Spencer T. Behmer
1. Nutrient regulation should covary with life history, but actual demonstrations of this connection are rare. 2. Here we use a wing-polymorphic cricket, Gryllus firmus, that trades-off dispersal and reproduction; the long-winged morph with functional flight muscles (LW(f)) is adapted for dispersal at the expense of egg production, while the short-winged (SW) morph is adapted for egg production at the expense of flight. We explore the extent to which these two morphs differentially regulate macronutrient...

Data from: Genetic variation and differentiation of extant bison (Bison bison) subspecies and cattle (Bos taurus) breeds and subspecies

Matthew A. Cronin, Michael D. MacNeil, Ninh Vu, Vicki Leesburg, Harvey D. Blackburn & James N. Derr
The genetic relationship of American plains bison (Bison bison bison) and wood bison (B. b. athabascae) was quantified and compared with that among breeds and subspecies of cattle. Plains bison from nine herds (N=136), wood bison from three herds (N=65), taurine cattle (Bos taurus taurus) from fourteen breeds (N=244), and indicine cattle (B. t. indicus) from two breeds (N=53) were genotyped for 29 polymorphic microsatellite loci. Bayesian cluster analyses indicate three groups, two of which...

Data from: The effects of synthetic estrogen exposure on pre-mating and post-mating episodes of selection in sex-role-reversed Gulf pipefish

Emily Rose, Kimberly A. Paczolt & Adam G. Jones
Environmental estrogens have been shown to affect populations of aquatic organisms in devastating ways, including feminization of males, alterations in mating behaviors, and disruption of sexual selection. Studies have shown 17α-ethinylestradiol (EE2) exposure to induce female-like secondary sexual traits in male Gulf pipefish, changing how females perceive affected males. We aimed to understand the effects of EE2 exposure on the sex-role-reversed mating system and the strength of selection in Gulf pipefish. We used artificial Gulf...

Data from: Large fluctuations in the effective population size of the malaria mosquito Anopheles gambiae s.s. during vector control cycle

Theresa K. Hodges, Giridhar Athrey, Kevin C. Deitz, Hans J. Overgaard, Abrahan Matias, Aldalgisa Caccone, Michel A. Slotman & Adalgisa Caccone
On Bioko Island, Equatorial Guinea, indoor residual spraying (IRS) has been part of the Bioko Island Malaria Control Project since early 2004. Despite success in reducing childhood infections, areas of high transmission remained on the island. We therefore examined fluctuations in the effective population size (N_e) of the malaria vector Anopheles gambiae in an area of persistent high transmission over two spray rounds. We analyzed data for 13 microsatellite loci from 791 An. gambiae specimens...

Data from: No evidence for size-assortative mating in the wild despite mutual mate choice in sex-role-reversed pipefishes

Kenyon B. Mobley, Maria Abou Chakra & Adam G. Jones
Size-assortative mating is a nonrandom association of body size between members of mating pairs and is expected to be common in species with mutual preferences for body size. In this study, we investigated whether there is direct evidence for size-assortative mating in two species of pipefishes, Syngnathus floridae and S. typhle, that share the characteristics of male pregnancy, sex-role reversal, and a polygynandrous mating system. We take advantage of microsatellite-based “genetic-capture” techniques to match wild-caught...

Data from: The rediscovery of a long described species reveals additional complexity in speciation patterns of poeciliid fishes in sulfide springs

Maura Palacios, Lenin Arias-Rodrigues, Martin Plath, Constanze Eifert, Hannes Lerp, Anton Lamboj, Gary Voelker, Michael Tobler & Lenin Arias-Rodriguez
The process of ecological speciation drives the evolution of locally adapted and reproductively isolated populations in response to divergent natural selection. In Southern Mexico, several lineages of the freshwater fish species of the genus Poecilia have independently colonized toxic, hydrogen sulfide-rich springs. Even though ecological speciation processes are increasingly well understood in this system, aligning the taxonomy of these fish with evolutionary processes has lagged behind. While some sulfide spring populations are classified as ecotypes...

Data from: Using Illumina Next Generation Sequencing Technologies to sequence multigene families in de novo species

Graham M. Hughes, Li Gang, William J. Murphy, Desmond G. Higgins & Emma C. Teeling
The advent of Next Generation Sequencing Technology (NGST) has revolutionized molecular biology research, allowing for rapid gene/genome sequencing from a multitude of diverse species. As high throughput sequencing becomes more accessible, more efficient workflows must be developed to deal with the amounts of data produced and better assemble the genomes of de novo lineages. We combine traditional laboratory methods with Illumina NGST to amplify and sequence the largest mammalian multigene family, the Olfactory Receptor gene...

Data from: A complex evolutionary history in a remote archipelago: phylogeography and morphometrics of the Hawaiian endemic Ligia isopods

Carlos A. Santamaria, Mariana Mateos, Stefano Taiti, Thomas J. DeWitt & Luis A. Hurtado
Compared to the striking diversification and levels of endemism observed in many terrestrial groups within the Hawaiian Archipelago, marine invertebrates exhibit remarkably lower rates of endemism and diversification. Supralittoral invertebrates restricted to specific coastal patchy habitats, however, have the potential for high levels of allopatric diversification. This is the case of Ligia isopods endemic to the Hawaiian Archipelago, which most likely arose from a rocky supralittoral ancestor that colonized the archipelago via rafting, and diversified...

Data from: Aquatic community structure across an Andes-to-Amazon fluvial gradient

Nathan K. Lujan, Katherine A. Roach, Dean Jacobsen, Kirk O. Winemiller, Vanessa Meza Vargas, Vania Rimarachín Ching & Jerry Arana Maestre
Aim: Little is known about factors affecting the elevational and longitudinal zonation of tropical Andean stream communities. We investigated epilithon, macroinvertebrate and fish assemblages along a 4100-m elevational–longitudinal gradient in an Andean headwater of the Amazon Basin. We interpret our results within the context of environmental factors, emphasizing temperature, as well as ecological theory relating shifts in metazoan functional feeding groups to shifts in basal resources along the fluvial continuum. Location: Arazá-Inambari-Madre de Dios watershed,...

Data from: Physiological adaptation along environmental gradients and replicated hybrid zone structure in swordtails (Teleostei: Xiphophorus)

Z. W. Culumber, D. B. Shepard, S. W. Coleman, G. G. Rosenthal & M. Tobler
Local adaptation is often invoked to explain hybrid zone structure, but empirical evidence of this is generally rare. Hybrid zones between two poeciliid fishes, Xiphophorus birchmanni and X. malinche, occur in multiple tributaries with independent replication of upstream-to-downstream gradients in morphology and allele frequencies. Ecological niche modelling revealed that temperature is a central predictive factor in the spatial distribution of pure parental species and their hybrids and explains spatial and temporal variation in the frequency...

Data from: Sexual conflict over mating in red-sided garter snakes (Thamnophis sirtalis) as indicated by experimental manipulation of genitalia

Christopher R. Friesen, Emily J. Uhrig, Mattie K. Squire, Robert T. Mason & Patricia L. R. Brennan
Sexual conflict over mating can result in sex specific morphologies and behaviors that allow each sex to exert control over the outcome of reproduction. Genital traits, in particular, are often directly involved in conflict interactions. Via genital manipulation, we experimentally investigated whether genital traits in red-sided garter snakes influence copulation duration and formation of a copulatory plug. The hemipenes of male red-sided garter snakes have a large basal spine that inserts into the female cloaca...

Registration Year

  • 2013

Resource Types

  • Dataset


  • Texas A&M University
  • Yale University
  • University of Massachusetts Amherst
  • Princeton University
  • Polytechnic Institute of Bragança
  • Texas A&M University at Galveston
  • Sam Houston State University
  • Oregon State University
  • University of California, San Diego
  • University of Minnesota