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32
datasets available to search
ShareScore release 0.9.0
Dataset results
32 results for “Populus tremuloides”
Populus tremuloides (Salicaceae) - twig - orientation of petioles
Image of Populus tremuloides (Salicaceae) - twig - orientation of petioles
Populus tremuloides (Salicaceae) - leaf - showing orientation on twig
Image of Populus tremuloides (Salicaceae) - leaf - showing orientation on twig
Populus tremuloides (Salicaceae) - whole tree (or vine) - view up trunk
Image of Populus tremuloides (Salicaceae) - whole tree (or vine) - view up trunk
Populus tremuloides (Salicaceae) - bark - of a medium tree or large branch
Image of Populus tremuloides (Salicaceae) - bark - of a medium tree or large branch
Populus tremuloides (Salicaceae) - whole tree (or vine) - general
Image of Populus tremuloides (Salicaceae) - whole tree (or vine) - general
Populus tremuloides (Salicaceae) - twig - orientation of petioles
Image of Populus tremuloides (Salicaceae) - twig - orientation of petioles
Populus tremuloides (Salicaceae) - leaf - whole upper surface
Image of Populus tremuloides (Salicaceae) - leaf - whole upper surface
Populus tremuloides (Salicaceae) - leaf - margin of upper + lower surface
Image of Populus tremuloides (Salicaceae) - leaf - margin of upper + lower surface
Populus tremuloides (Salicaceae) - leaf - whole upper surface
Image of Populus tremuloides (Salicaceae) - leaf - whole upper surface
Species mixture effects and climate influence growth, recruitment and mortality in Interior West U.S.A. Populus tremuloides - conifer communities
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Populus tremuloides (Salicaceae) - whole tree (or vine) - general
Image of Populus tremuloides (Salicaceae) - whole tree (or vine) - general
Populus tremuloides (Salicaceae) - whole tree (or vine) - general
Image of Populus tremuloides (Salicaceae) - whole tree (or vine) - general
Populus tremuloides (Salicaceae) - whole tree (or vine) - general
Image of Populus tremuloides (Salicaceae) - whole tree (or vine) - general
Environment and genotype influence on Populus tremuloides condensed tannin composition
<p>This dataset contains concentration and molecular structural information (mean degree of polymerization, procyanidin:prodelphinidin ratios, stereochemistry) describing condensed tannins in <em>Populus tremuloides</em> (aspen) tree foliage in different genotypes and in response to altered environmental conditions (warming, freeze damage, ozone exposure, elevated carbon dioxide, elevated soil nutrients, altered soil microbiome, mammal browsing, and insect herbivory).</p>
Data from: Genomic and transcriptomic analyses reveal polygenic architecture for ecologically-important functional traits in aspen (Populus tremuloides Michx.)
<p>Intraspecific genetic variation in foundation species such as aspen (<em>Populus</em> <em>tremuloides</em> Michx.) shapes their impact on forest structure and function. Identifying genes underlying ecologically important traits is key to understanding that impact. Previous studies, using single-locus genome-wide association (GWA) analyses to identify candidate genes, have identified fewer genes than anticipated for highly heritable quantitative traits. Mounting evidence suggests that polygenic control of quantitative traits is largely responsible for this "missing heritability" phenomenon. Our research characterized the genetic architecture of 30 ecologically important traits using a common garden of aspen through genomic and transcriptomic analyses. A multilocus association model revealed that most traits displayed a highly polygenic architecture, with most variation explained by loci with small effects (likely below the detection levels of single-locus GWA methods). Consistent with a polygenic architecture, our single-locus GWA analyses found only 38 significant SNPs in 22 genes across 15 traits. Next, we used differential expression analysis on a subset of aspen genets with divergent concentrations of salicinoid phenolic glycosides (key defense traits). This complementary method to traditional GWA discovered 1,243 differentially expressed genes for a polygenic trait. Soft clustering analysis revealed three gene clusters (241 candidate genes) involved in secondary metabolite biosynthesis and regulation. Our work reveals that ecologically important traits governing higher-order community- and ecosystem-level attributes of a foundation forest tree species have complex underlying genetic structures and will require methods beyond traditional GWA analyses to unravel.</p>
Data from: Genomic and transcriptomic analyses reveal polygenic architecture for ecologically-important functional traits in aspen (Populus tremuloides Michx.)
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Environment and genotype influence on Populus tremuloides condensed tannin composition
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Cytotype and genotype predict mortality and recruitment in Colorado quaking aspen (Populus tremuloides)
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Cedar Creek Ecosystem Science Reserve site, station Old Field 35 at Cedar Creek, study of plant cover of Populus tremuloides in units of percent on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Cedar Creek Ecosystem Science Reserve (CDR) contains plant cover of Populus tremuloides measurements in percent units and were aggregated to a yearly timescale.
Cedar Creek Ecosystem Science Reserve site, station Old Field 76 at Cedar Creek, study of plant cover of Populus tremuloides in units of percent on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Cedar Creek Ecosystem Science Reserve (CDR) contains plant cover of Populus tremuloides measurements in percent units and were aggregated to a yearly timescale.
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