38 Works

Data from: Natural selection on MHC IIβ in parapatric lake and stream stickleback: balancing, divergent, both or neither?

William E. Stutz & Daniel I. Bolnick
Major histocompatibility (MHC) genes encode proteins that play a central role in vertebrates’ adaptive immunity to parasites. MHC loci are among the most polymorphic in vertebrates’ genomes, inspiring many studies to identify evolutionary processes driving MHC polymorphism within populations, and divergence between populations. Leading hypotheses include balancing selection favoring rare alleles within populations, and spatially divergent selection. These hypotheses do not always produce diagnosably distinct predictions, causing many studies of MHC to yield inconsistent or...

Data from: Stronger selective constraint on downstream genes in the oxidative phosphorylation pathway of cetaceans

Ran Tian, Shixia Xu, Simin Chai, Daiqing Yin, Harold Zakon & Guang Yang
The oxidative phosphorylation (OXPHOS) pathway is an efficient way to produce energy via adenosine triphosphate (ATP), which is critical for sustaining an energy supply for cetaceans in a hypoxic environment. Several studies have shown that natural selection may shape the evolution of the genes involved in OXPHOS. However, how network architecture drives OXPHOS protein sequence evolution remains poorly explored. Here, we investigated the evolutionary patterns of genes in the OXPHOS pathway across six cetacean genomes...

Data from: Male-mimicking females increase male-male interactions, and decrease male survival and condition in a female-polymorphic damselfly

Eben Jordan Gering
Biologists are still discovering diverse and powerful ways sexual conflicts shape biodiversity. The present study examines how the proportion of females in a population that exhibit male mimicry, a mating resistance trait, influences conspecific males’ behavior, condition and survival. Like most female-polymorphic damselflies, Ischnura ramburii harbors both “andromorph” females, which closely resemble males, and sexually dimorphic “gynomorph” counterparts. There is evidence that male mimicry helps andromorphs evade detection and harassment, but males can also learn...

Data from: Recombination-dependent replication and gene conversion homogenize repeat sequences and diversify plastid genome structure

Tracey A. Ruhlman, Jin Zhang, John C. Blazier, Jamal S. M. Sabir & Robert K. Jansen
PREMISE OF THE STUDY: There is a misinterpretation in the literature regarding the variable orientation of the small single copy region of plastid genomes (plastomes). The common phenomenon of small and large single copy inversion, hypothesized to occur through intramolecular recombination between inverted repeats (IR) in a circular, single unit-genome, in fact more likely occurs through recombination-dependent replication (RDR) of linear plastome templates. If RDR can be primed through both intra- and intermolecular recombination, then...

Data from: Environmental conditions limit attractiveness of a complex sexual signal in the túngara frog

Wouter Halfwerk, Judith A. H. Smit, Hugo Loning, Amanda M. Lea, Inga Geipel, Jacintha Ellers & Michael J. Ryan
Animals choosing particular display sites often balance sexual and natural selection pressures. Here we assess how physical properties of display sites can alter this balance by influencing signal production and attractiveness of the túngara frog (Physalaemus pustulosus). Males that call from very shallow water bodies (few mm depth) benefit from reduced predation risk, but by manipulating water levels, we show that this comes at a cost of reduced attractiveness to females. Our data show that...

Data from: Predators regulate prey species sorting and spatial distribution in microbial landscapes

George Livingston, Kayoko Fukumori, Diogo Provete, Masanobu Kawachi, Noriko Takamura, Mathew Leibold & Mathew A. Leibold
1. The role of predation in determining the metacommunity assembly model of prey communities is understudied relative to that of interspecific competition among prey. Previous work on metacommunity dynamics of competing species has shown that sorting by habitat patch type and spatial patterning can be affected by disturbances. 2. Microcosms offer a useful model system to test the effect of multi-trophic interactions and disturbance on metacommunity dynamics. Here, we investigated the potential role of predators...

Data from: Resolution of a global mango and fig pest identity crisis

Andrew J. Johnson, Miloš Knížek, Thomas H. Atkinson, Bjarte H. Jordal, Randy C. Ploetz & Jiri Hulcr
Hypocryphalus Hopkins, 1915 and Cryphalus Erichson, 1836 (Curculionidae: Scolytinae: Cryphalini) are significant pests of fig, mango, and other economically important fruit trees, yet have received little attention from systematists. An integrated approach using molecular and morphological evidence resolved the identities of the species feeding on mango and fig. The following taxonomic changes are proposed: Hypocryphalus mangiferae (Stebbing, 1914), stat. rev.; Hypocryphalus dilutus (Eichhoff, 1878a), stat. rev. (=Cryphalus dilutusEichhoff, 1878b, syn. n.); Hypocryphalus discretus (Eichhoff, 1878a),...

Data from: Complex selection on a regulator of social cognition: evidence of balancing selection, regulatory interactions and population differentiation in the prairie vole Avpr1a locus

Alejandro Berrio, Rafael F. Guerrero, Galina V. Aglyamova, Mariam Okhovat, Mikhail V. Matz & Steven M. Phelps
Adaptive variation in social behavior depends upon standing genetic variation, but we know little about how evolutionary forces shape genetic diversity relevant to brain and behavior. In prairie voles (Microtus ochrogaster), variants at the Avpr1a locus predict expression of the vasopressin 1a receptor in the retrosplenial cortex (RSC), a brain region that mediates spatial and contextual memory; cortical V1aR abundance in turn predicts diversity in space-use and sexual fidelity in the field. To examine the...

Data from: Field-based high throughput phenotyping rapidly identifies genomic regions controlling yield components in rice

Paul Tanger, Stephen Klassen, Julius P. Mojica, John T. Lovell, Brook T. Moyers, Marietta Baraoidan, Maria Elizabeth B. Naredo, Kenneth L. McNally, Jesse Poland, Daniel R. Bush, Hei Leung, Jan E. Leach & John K. McKay
To ensure food security in the face of population growth, decreasing water and land for agriculture, and increasing climate variability, crop yields must increase faster than the current rates. Increased yields will require implementing novel approaches in genetic discovery and breeding. Here we demonstrate the potential of field-based high throughput phenotyping (HTP) on a large recombinant population of rice to identify genetic variation underlying important traits. We find that detecting quantitative trait loci (QTL) with...

Data from: Many-to-one form-to-function mapping weakens parallel morphological evolution

Cole J. Thompson, Newaz Ahmed, Thor Veen, Catherine Lynn Peichel, Andrew P. Hendry, Daniel I. Bolnick & Yoel E. Stuart
Evolutionary ecologists aim to explain and predict evolutionary change under different selective regimes. Theory suggests that such evolutionary prediction should be more difficult for biomechanical systems in which different trait combinations generate the same functional output: “many-to-one mapping”. Many-to-one mapping of phenotype to function enables multiple morphological solutions to meet the same adaptive challenges. Therefore, many-to-one mapping should undermine parallel morphological evolution, and hence evolutionary predictability, even when selection pressures are shared among populations. Studying...

Data from: Gene expression stasis and plasticity following migration into a foreign environment

Brian K. Lohman, William E. Stutz & Daniel I. Bolnick
Selection against migrants is key to maintaining genetic differences between populations linked by dispersal. However, migrants may mitigate fitness costs by proactively choosing among available habitats, or by phenotypic plasticity. We previously reported that a reciprocal transplant of lake and stream stickleback (Gasterosteus aculeatus) found little support for divergent selection. Here, we revisit that experiment to test whether phenotypic plasticity in gene expression may have helped migrants adjust to unfamiliar habitats. We measured gene expression...

Data from: Idiosyncratic responses to climate-driven forest fragmentation and marine incursions in reed frogs from Central Africa and the Gulf of Guinea Islands

Rayna C. Bell, Juan L. Parra, Gabriel Badjedjea, Michael F. Barej, David C. Blackburn, Marius Burger, Alan Channing, J. Maximilian Dehling, Eli Greenbaum, Václav Gvoždík, Jos Kielgast, Chifundera Kusamba, Stefan Lötters, Patrick J. McLaughlin, Zoltán T. Nagy, Mark-Oliver Rödel, Daniel M. Portik, Bryan L. Stuart, Jeremy VanDerWal, Ange-Ghislain Zassi Boulou & Kelly R. Zamudio
Organismal traits interact with environmental variation to mediate how species respond to shared landscapes. Thus, differences in traits related to dispersal ability or physiological tolerance may result in phylogeographic discordance among co-distributed taxa, even when they are responding to common barriers. We quantified climatic suitability and stability, and phylogeographic divergence within three reed frog species complexes across the Guineo-Congolian forests and Gulf of Guinea archipelago of Central Africa to investigate how they responded to a...

Data from: Adding landscape genetics and individual traits to the ecosystem function paradigm reveals the importance of species functional breadth

Antonio R. Castilla, Nathaniel S. Pope, Megan O´Connell, María F. Rodriguez, Laurel Treviño, Alonso Santos & Shalene Jha
Animal pollination mediates both reproduction and gene flow for the majority of plant species across the globe. However, past functional studies have focused largely on seed production; although useful, this focus on seed set does not provide information regarding species-specific contributions to pollen-mediated gene flow. Here we quantify pollen dispersal for individual pollinator species across more than 690 ha of tropical forest. Specifically, we examine visitation, seed production, and pollen-dispersal ability for the entire pollinator...

Registration Year

  • 2017
    38

Resource Types

  • Dataset
    38

Affiliations

  • The University of Texas at Austin
    38
  • University of California, Berkeley
    3
  • University of Florida
    3
  • University of Wyoming
    2
  • University of Bern
    2
  • King Abdulaziz University
    2
  • Smithsonian Tropical Research Institute
    2
  • James Cook University
    2
  • University of Bath
    1
  • Sun Yat-sen University
    1