8 Works

Data from: Social effects for locomotion vary between environments in Drosophila melanogaster females

Sarah A. Signor, Mohammad Abbasi, Paul Marjoram & Sergey V. Nuzhdin
Despite strong purifying or directional selection, variation is ubiquitous in populations. One mechanism for the maintenance of variation is indirect genetic effects, as the fitness of a given genotype will depend somewhat on the genes of its social partners. Indirect genetic effects (IGEs) describe the effect of genes in social partners on the expression of the phenotype of a focal individual. Here we ask what effect IGEs, and variation in IGEs between abiotic environments, has...

Data from: Cannabinoids disrupt memory encoding by functionally isolating hippocampal CA1 from CA3

Roman A. Sandler, Dustin Fetterhoff, Robert E. Hampson, Sam A. Deadwyler, Vasilis Z. Marmarelis & Roman Sandler
Much of the research on cannabinoids (CBs) has focused on their effects at the molecular and synaptic level. However, the effects of CBs on the dynamics of neural circuits remains poorly understood. This study aims to disentangle the effects of CBs on the functional dynamics of the hippocampal Schaffer collateral synapse by using data-driven nonparametric modeling. Multi-unit activity was recorded from rats doing an working memory task in control sessions and under the influence of...

Data from: Variation of stomatal traits from cold-temperate to tropical forests and association with water use efficiency

Congcong Liu, Nianpeng He, Jiahui Zhang, Ying Li, Qiufeng Wang, Lawren Sack & Guirui Yu
1.Stomata control carbon and water vapor exchange between leaves and the atmosphere, thus it can influence water use efficiency and reflect plant adaptation to climate. However, the spatial patterns of leaf stomatal traits and relationships between stomatal trait and water use efficiency across natural communities remain unclear. 2.We measured stomatal density, stomatal size, and stomatal area fraction for 737 plant species from nine forests ranging from tropical to cold-temperate forests. 3.Stomatal density, stomatal size, and...

Data from: Inferring individual-level processes from population-level patterns in cultural evolution

Anne Kandler, Bryan Wilder & Laura Fortunato
Our species is characterized by a great degree of cultural variation, both within and between populations. Understanding how group-level patterns of culture emerge from individual-level behaviour is a long-standing question in the biological and social sciences. We develop a simulation model capturing demographic and cultural dynamics relevant to human cultural evolution, focusing on the interface between population-level patterns and individual-level processes. The model tracks the distribution of variants of cultural traits across individuals in a...

Data from: Basic reversal-learning capacity in flies suggests rudiments of complex cognition

Brad R. Foley, Paul Marjoram & Sergey V. Nuzhdin
The most basic models of learning are reinforcement learning models (for instance, classical and operant conditioning) that posit a constant learning rate; however many animals change their learning rates with experience. This process is sometimes studied by reversing an existing association between cues and rewards, and measuring the rate of relearning. Augmented reversal-learning, where learning rates increase with practice, can be an important component of behavioral flexibility; and may provide insight into higher cognition. Previous...

Data from: Effects of ultraviolet radiation on photosynthetic performance and N2 fixation in Trichodesmium erythraeum IMS 101

Xiaoni Cai, David A. Hutchins, Feixue Fu & Kunshan Gao
Biological effects of ultraviolet radiation (UVR; 280–400 nm) on marine primary producers are of general concern, as oceanic carbon fixers that contribute to the marine biological CO2 pump are being exposed to increasing UV irradiance due to global change and ozone depletion. We investigated the effects of UV-B (280–320 nm) and UV-A (320–400 nm) on the biogeochemically critical filamentous marine N2-fixing cyanobacterium Trichodesmium (strain IMS101) using a solar simulator as well as under natural solar...

Data from: Ecology and genomics of an important crop wild relative as a prelude to agricultural innovation

Eric J. B. Von Wettberg, Peter L Chang, Fatma Başdemir, Noelia Carrasquila-Garcia, Lijalem Korbu, Susan M. Moenga, Gashaw Bedada, Alex Greenlon, Ken S. Moriuchi, Vasantika Suryawanshi, Matilde A Cordeiro, Nina V. Noujdina, Kassaye Negash Dinegde, Syed Gul Abbas Shah Sani, Tsegaye Getahun, Lisa Vance, Emily Bergmann, Donna Lindsay, Bullo Erena Mamo, Emily J. Warschefsky, Emmanuel Dacosta-Calheiros, Edward Marques, Mustafa Abdullah Yilmaz, Ahmet Murat Cakmak, Janna Rose … & Douglas R. Cook
Domesticated species are impacted in unintended ways during domestication and breeding. Changes in the nature and intensity of selection impart genetic drift, reduce diversity, and increase the frequency of deleterious alleles. Such outcomes constrain our ability to expand the cultivation of crops into environments that differ from those under which domestication occurred. We address this need in chickpea, an important pulse legume, by harnessing the diversity of wild crop relatives. We document an extreme domestication-related...

Data from: Functional genomic analysis of corals from natural CO2-seeps reveals core molecular responses involved in acclimatization to ocean acidification

Carly D. Kenkel, Aurelie Moya, Julia Strahl, Craig Humphrey & Line K. Bay
Little is known about the potential for acclimatization or adaptation of corals to ocean acidification and even less about the molecular mechanisms underpinning these processes. Here we examine global gene expression patterns in corals and their intracellular algal symbionts from two replicate population pairs in Papua New Guinea that have undergone long-term acclimatization to natural variation in pCO2. In the coral host, only 61 genes were differentially expressed in response to pCO2 environment, but the...

Registration Year

  • 2017
    8

Resource Types

  • Dataset
    8

Affiliations

  • University of Southern California
    8
  • Xiamen University
    1
  • Department of Plant Biology
    1
  • University of Saskatchewan
    1
  • Ethiopian Institute of Agricultural Research
    1
  • Central Research Institute
    1
  • Wake Forest University
    1
  • Gaziantep University
    1
  • Dicle University
    1
  • Florida International University
    1