10 Works

Data from: Large effect quantitative trait loci for salicinoid phenolic glycosides in Populus: implications for gene discovery

Scott A. Woolbright, Brian J. Rehill, Richard L. Lindroth, Stephen P. DiFazio, Gregory D. Martinsen, Mathew S. Zinkgraf, Gerard J. Allan, Paul Keim, Thomas G. Whitham & Matthew S. Zinkgraf
Genomic studies have been used to identify genes underlying many important plant secondary metabolic pathways. However, genes for salicinoid phenolic glycosides (SPGs)—ecologically important compounds with significant commercial, cultural, and medicinal applications—remain largely undescribed. We used a linkage map derived from a full‐sib population of hybrid cottonwoods (Populus spp.) to search for quantitative trait loci (QTL) for the SPGs salicortin and HCH‐salicortin. SSR markers and primer sequences were used to anchor the map to the V3.0...

Data from: Genetic analyses reveal cryptic introgression in secretive marsh bird populations

Stephanie S. Coster, Amy B. Welsh, Gary Costanzo, Sergio R. Harding, James T. Anderson, Susan B. McRae & Todd E. Katzner
Hybridization is common in bird populations but can be challenging for management, especially if one of the two parent species is of greater conservation concern than the other. King rails (Rallus elegans) and clapper rails (R. crepitans) are two marsh bird species with similar morphologies, behaviors, and overlapping distributions. The two species are found along a salinity gradient with the king rail in freshwater marshes and the clapper in estuarine marshes. However, this separation is...

Data from: Altered spring phenology of North American freshwater turtles and the importance of representative populations

Fredric J. Janzen, Luke A. Hoekstra, Ronald J. Brooks, David M. Carroll, J. Whitfield Gibbons, Judith L. Greene, John B. Iverson, Jacqueline D. Litzgus, Edwin D. Michael, Steven G. Parren, Willem M. Roosenburg, Gabriel F. Strain, John K. Tucker & Gordon R. Ultsch
Globally, populations of diverse taxa have altered phenology in response to climate change. However, most research has focused on a single population of a given taxon, which may be unrepresentative for comparative analyses, and few long‐term studies of phenology in ectothermic amniotes have been published. We test for climate‐altered phenology using long‐term studies (10–36 years) of nesting behavior in 14 populations representing six genera of freshwater turtles (Chelydra, Chrysemys, Kinosternon, Malaclemys, Sternotherus, and Trachemys). Nesting...

Data from: Sulfur resistance of Ce-Mn/TiO2 catalysts for low-temperature NH3–SCR

Quan Xu, Wenjing Yang, Shitong Cui, Jason Street & Yan Luo
Ce-Mn/TiO2 catalyst prepared using a simple impregnation method demonstrated a better low-temperature selective catalytic reduction of NO with NH3 (NH3-SCR) activity in comparison with the sol-gel method. The Ce-Mn/TiO2 catalyst loading with 20% Ce had the best low-temperature activity and achieved a NO conversion rate higher than 90% at 140-260°C with a 99.7% NO conversion rate at 180 °C. The Ce-Mn/TiO2 catalyst only had a 6% NO conversion rate decrease after 100 ppm of SO2...

Data from: Dense infraspecific sampling reveals rapid and independent trajectories of plastome degradation in a heterotrophic orchid complex

Craig F. Barrett, Susann Wicke & Chodon Sass
Heterotrophic plants provide excellent opportunities to study the effects of altered selective regimes on genome evolution. Plastid genome (plastome) studies in heterotrophic plants are often based on one or a few highly divergent species or sequences as representatives of an entire lineage, thus missing important evolutionary-transitory events. Here we present the first infraspecific analysis of plastome evolution in any heterotrophic plant. By combining genome skimming and targeted sequence capture, we address hypotheses on the degree...

Data from: State-space modelling of the flight behaviour of a soaring bird provides new insights to migratory strategies

Enrico Pirotta, Todd Katzner, Tricia A. Miller, Adam E. Duerr, Melissa A. Braham & Leslie New
1. Characterizing the spatiotemporal variation of animal behaviour can elucidate the way individuals interact with their environment and allocate energy. Increasing sophistication of tracking technologies paired with novel analytical approaches allows the characterisation of movement dynamics even when an individual is not directly observable. 2. In this study, high-resolution movement data collected via global positioning system (GPS) tracking in three dimensions were paired with topographical information and used in a Bayesian state-space model to describe...

Data from: Quantitative acoustic differentiation of cryptic species illustrated with King and Clapper rails

Lydia L. Stiffler, Katie M. Schroeder, James T. Anderson, Susan B. McRae & Todd E. Katzner
Reliable species identification is vital for survey and monitoring programs. Recently, the development of digital technology for recording and analyzing vocalizations has assisted in acoustic surveying for cryptic, rare, or elusive species. However, the quantitative tools that exist for species differentiation are still being refined. Using vocalizations recorded in the course of ecological studies of a King Rail (Rallus elegans) and a Clapper Rail (R. crepitans) population, we assessed the accuracy and effectiveness of three...

Data from: Isotopic evidence for oligotrophication of terrestrial ecosystems

Joseph M. Craine, Andrew J. Elmore, Lixin Wang, Julieta Aranibar, Marijn Bauters, Pascal Boeckx, Brooke E. Crowley, Melissa A. Dawes, Sylvain Delzon, Alex Fajardo, Yunting Fang, Lei Fujiyoshi, Alan Gray, Rossella Guerrieri, Michael J. Gundale, David J. Hawke, Peter Hietz, Mathieu Jonard, Elizabeth Kearsley, Tanaka Kenzo, Mikhail Makarov, Sara Marañón-Jiménez, Terrence P. McGlynn, Brenden E. McNeil, Stella G. Mosher … & Katarzyna Zmudczyńska-Skarbek
Human societies depend on an Earth System that operates within a constrained range of nutrient availability, yet the recent trajectory of terrestrial nitrogen (N) availability is uncertain. Examining patterns of foliar N concentrations ([N]) and isotope ratios (15N) from more than 42,000 samples acquired over 37 years, here we show that foliar [N] declined by 8% and foliar 15N declined by 0.8 – 1.9 ‰. Examining patterns across different climate spaces, foliar 15N declined across...

Data from: Mammal communities are larger and more diverse in moderately developed areas

Arielle Waldstein Parsons, Tavis Forrester, Megan C. Baker-Whatton, William J. McShea, Christopher T. Rota, Stephanie G. Schuttler, Joshua J. Millspaugh & Roland Kays
Developed areas are thought to have low species diversity, low animal abundance, few native predators, and thus low resilience and ecological function. Working with citizen scientist volunteers to survey mammals at 1427 sites across two development gradients (wild-rural-exurban-suburban-urban) and four plot types (large forests, small forest fragments, open areas and residential yards) in the eastern US, we show that developed areas actually had significantly higher or statistically similar mammalian occupancy, relative abundance, richness and diversity...

Data from: Landscape of tumor mutation load, mismatch repair deficiency, and PD-L1 expression in a large patient cohort of gastrointestinal cancers

Mohamed E. Salem, Alberto Puccini, Axel Grothey, Derek Raghavan, Richard M. Goldberg, Joanne Xiu, W. Michael Korn, Benjamin A. Weinberg, Jimmy J. Hwang, Anthony F. Shields, John L. Marshall, Philip A. Philip & Heinz-Josef Lenz
Purpose: The efficacy of immunotherapy varies widely among different gastrointestinal cancers. Response to immune checkpoint inhibitors is shown to correlate with tumor mutation load (TML), mismatch repair deficiency status (dMMR), and programmed cell death-ligand 1 (PD-L1) expression. Herein, we attempt to quantify TML, dMMR, and PD-L1 expression and determine their interrelationship in gastrointestinal cancers. Experimental Design: A total of 4125 tumors from 14 different gastrointestinal cancer sites were studied. Next-generation sequencing was performed on genomic...

Registration Year

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Affiliations

  • West Virginia University
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  • United States Geological Survey
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  • East Carolina University
    2
  • South African National Biodiversity Institute
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  • University of Montana
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  • Ghent University
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  • Karmanos Cancer Institute
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  • University of Münster
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  • Centre for Ecology and Hydrology
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  • Oregon Department of Fish and Wildlife
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