Joshua G. Harrison
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View article: High Quality Diet Enhances Immune Response and Affects Gene Expression During Viral Infection in an Insect Herbivore
High Quality Diet Enhances Immune Response and Affects Gene Expression During Viral Infection in an Insect Herbivore Open
Herbivorous insects tolerate chemical and metabolic variation in their host plant diet by modulating physiological traits. Insect immune response is one such trait that plays a crucial role in maintaining fitness but can be heavily influen…
View article: Collaborative consortia can boost postdoctoral workforce development
Collaborative consortia can boost postdoctoral workforce development Open
Emotions coordinate our behavior and physiological states during survival-salient events and pleasurable interactions. Even though we are often consciously aware of our current emotional state, such as anger or happiness, the mechanisms gi…
View article: Interpretable and predictive models based on high-dimensional data in ecology and evolution
Interpretable and predictive models based on high-dimensional data in ecology and evolution Open
The proliferation of high-dimensional data in ecology and evolutionary biology raise the promise of statistical and machine learning models that are highly predictive and interpretable. However, high-dimensional data are commonly burdened …
View article: Rhizosphere microbial community composition shifts diurnally and in response to natural variation in host clock phenotype
Rhizosphere microbial community composition shifts diurnally and in response to natural variation in host clock phenotype Open
Plant-associated microbial assemblages are known to shift at time scales aligned with plant phenology, as influenced by the changes in plant-derived nutrient concentrations and abiotic conditions observed over a growing season. But these s…
View article: Heightened sympathetic neuron activity and altered cardiomyocyte properties in spontaneously hypertensive rats during the postnatal period
Heightened sympathetic neuron activity and altered cardiomyocyte properties in spontaneously hypertensive rats during the postnatal period Open
The Spontaneously Hypertensive Rat (SHR) has increased sympathetic drive to the periphery that precedes and contributes to the development of high blood pressure, making it a useful model for the study of neurogenic hypertension. Compariso…
View article: Additive genetic effects in interacting species jointly determine the outcome of caterpillar herbivory
Additive genetic effects in interacting species jointly determine the outcome of caterpillar herbivory Open
Plant–insect interactions are common and important in basic and applied biology. Trait and genetic variation can affect the outcome and evolution of these interactions, but the relative contributions of plant and insect genetic variation a…
View article: The abundances and occurrences of foliar microbes are poorly predicted by variation in plant traits and abiotic conditions
The abundances and occurrences of foliar microbes are poorly predicted by variation in plant traits and abiotic conditions Open
Much effort has been made to understand why foliar microbes live where they do. However, whether foliar microbiome composition can be predicted is unknown. Here, we determine the limits of prediction using metabarcoding data of both fungal…
View article: Aquatic Macrophytes Are Associated With Variation in Biogeochemistry and Bacterial Assemblages of Mountain Lakes
Aquatic Macrophytes Are Associated With Variation in Biogeochemistry and Bacterial Assemblages of Mountain Lakes Open
In aquatic systems, microbes likely play critical roles in biogeochemical cycling and ecosystem processes, but much remains to be learned regarding microbial biogeography and ecology. The microbial ecology of mountain lakes is particularly…
View article: Additive genetic effects in interacting species jointly determine the outcome of caterpillar herbivory
Additive genetic effects in interacting species jointly determine the outcome of caterpillar herbivory Open
Plant-insect interactions are common and important in basic and applied biology. Trait and genetic variation can affect the outcome and evolution of these interactions, but the relative contributions of plant and insect genetic variation a…
View article: Whole-Genome Duplication and Host Genotype Affect Rhizosphere Microbial Communities
Whole-Genome Duplication and Host Genotype Affect Rhizosphere Microbial Communities Open
Plants influence the composition of their associated microbial communities, yet the underlying host-associated genetic determinants are typically unknown. Genome duplication events are common in the evolutionary history of plants and affec…
View article: Characterizing Microbiomes via Sequencing of Marker Loci: Techniques To Improve Throughput, Account for Cross-Contamination, and Reduce Cost
Characterizing Microbiomes via Sequencing of Marker Loci: Techniques To Improve Throughput, Account for Cross-Contamination, and Reduce Cost Open
New methods to characterize microbiomes reduce technology-imposed limitations to study design, but many new approaches have not been widely adopted. Here, we present techniques to increase throughput and reduce contamination alongside a th…
View article: A suite of rare microbes interacts with a dominant, heritable, fungal endophyte to influence plant trait expression
A suite of rare microbes interacts with a dominant, heritable, fungal endophyte to influence plant trait expression Open
Endophytes are microbes that live, for at least a portion of their life history, within plant tissues. Endophyte assemblages are often composed of a few abundant taxa and many infrequently observed, low-biomass taxa that are, in a word, ra…
View article: Caterpillars on a phytochemical landscape: The case of alfalfa and the Melissa blue butterfly
Caterpillars on a phytochemical landscape: The case of alfalfa and the Melissa blue butterfly Open
Modern metabolomic approaches that generate more comprehensive phytochemical profiles than were previously available are providing new opportunities for understanding plant‐animal interactions. Specifically, we can characterize the phytoch…
View article: The diversity and distribution of endophytes across biomes, plant phylogeny and host tissues: how far have we come and where do we go from here?
The diversity and distribution of endophytes across biomes, plant phylogeny and host tissues: how far have we come and where do we go from here? Open
Summary The interiors of plants are colonized by diverse microorganisms that are referred to as endophytes. Endophytes have received much attention over the past few decades, yet many questions remain unanswered regarding patterns in their…
View article: Novaseq DNA data for Astralagus lentiginosus microbiome manipulation
Novaseq DNA data for Astralagus lentiginosus microbiome manipulation Open
Within the zip file there is a README and a file called trait_and_treatment_data.csv that contains a large amount of information for each replicate within this experiment
View article: RNA sequence data for Lycaeides melissa
RNA sequence data for Lycaeides melissa Open
Dataset size: 104.3 GB, ReadMe available below; RNA sequence data for Lycaeides melissa
View article: Sequence data from one and two-step library preparation procedures
Sequence data from one and two-step library preparation procedures Open
Dataset size: 520.4 MB, ReadMe available below; Sequence data from one and two-step library preparation procedures
View article: Tree Diversity Reduces Fungal Endophyte Richness and Diversity in a Large-Scale Temperate Forest Experiment
Tree Diversity Reduces Fungal Endophyte Richness and Diversity in a Large-Scale Temperate Forest Experiment Open
Although decades of research have typically demonstrated a positive correlation between biodiversity of primary producers and associated trophic levels, the ecological drivers of this association are poorly understood. Recent evidence sugg…
View article: The diversity and distribution of endophytes across biomes, plant phylogeny, and host tissues—how far have we come and where do we go from here?
The diversity and distribution of endophytes across biomes, plant phylogeny, and host tissues—how far have we come and where do we go from here? Open
The interiors of plants are colonized by diverse microorganisms that are referred to as endophytes. Endophytes have received much attention over the past few decades, yet many questions remain unanswered regarding patterns in their biodive…
View article: Dirichlet-multinomial modelling outperforms alternatives for analysis of microbiome and other ecological count data
Dirichlet-multinomial modelling outperforms alternatives for analysis of microbiome and other ecological count data Open
Molecular ecology regularly requires the analysis of count data that reflect the relative abundance of features of a composition (e.g., taxa in a community, gene transcripts in a tissue). The sampling process that generates these data can …
View article: A suite of rare microbes interacts with a dominant, heritable, fungal endophyte to influence plant trait expression
A suite of rare microbes interacts with a dominant, heritable, fungal endophyte to influence plant trait expression Open
Endophytes are microbes that live, for at least a portion of their life history, within plant tissues. Endophyte assemblages are often composed of a few abundant taxa and many infrequently-observed, rare taxa. The ways in which most endoph…
View article: Rarity does not limit genetic variation or preclude subpopulation structure in the geographically restricted desert forb <i>Astragalus lentiginosus</i> var. <i>piscinensis</i>
Rarity does not limit genetic variation or preclude subpopulation structure in the geographically restricted desert forb <i>Astragalus lentiginosus</i> var. <i>piscinensis</i> Open
Premise of the Study Characteristics of rare taxa include small population sizes and limited geographical ranges. The genetic consequences of rarity are poorly understood for most taxa. A small geographical range could result in reduced op…
View article: Caterpillars on a phytochemical landscape: the case of alfalfa and the Melissa blue butterfly
Caterpillars on a phytochemical landscape: the case of alfalfa and the Melissa blue butterfly Open
Modern metabolomic approaches that generate more comprehensive phytochemical profiles than were previously available are providing new opportunities for understanding plant-animal interactions. Specifically, we can characterize the phytoch…
View article: Peer Review #2 of "Temporal shifts in endophyte bacterial community composition of sessile oak (Quercus petraea) are linked to foliar nitrogen, stomatal length, and herbivory (v0.1)"
Peer Review #2 of "Temporal shifts in endophyte bacterial community composition of sessile oak (Quercus petraea) are linked to foliar nitrogen, stomatal length, and herbivory (v0.1)" Open
We studied the relationship between plant functional foliar traits and the endophytic bacterial communities associated in trees, taking the example of sessile oak (Quercus petraea (Matt.)Liebl).Forty-five samples with replicates of eight l…
View article: Peer Review #2 of "Temporal shifts in endophyte bacterial community composition of sessile oak (Quercus petraea) are linked to foliar nitrogen, stomatal length, and herbivory (v0.2)"
Peer Review #2 of "Temporal shifts in endophyte bacterial community composition of sessile oak (Quercus petraea) are linked to foliar nitrogen, stomatal length, and herbivory (v0.2)" Open
We studied the relationship between plant functional foliar traits and the endophytic bacterial communities associated in trees, taking the example of sessile oak (Quercus petraea (Matt.)Liebl).Forty-five samples with replicates of eight l…
View article: A heritable symbiont and host‐associated factors shape fungal endophyte communities across spatial scales
A heritable symbiont and host‐associated factors shape fungal endophyte communities across spatial scales Open
Microbial ecologists are intensely interested in the processes governing microbial community assembly; however, progress has been limited by a lack of studies that span multiple geographical scales and levels of biological organization. We…