18 Works

Data from: The evolutionary origins of the cat attractant nepetalactone in catnip

Benjamin R. Lichman, Grant T. Godden, John P. Hamilton, Lira Palmer, Mohamed O. Kamileen, Dongyan Zhao, Brieanne Vaillancourt, Joshua Wood, Miao Sun, Taliesin J. Kinser, Laura K. Henry, Carlos Rodriguez Lopez, Natalia Dudareva, Douglas E. Soltis, Pamela S. Soltis, C. Robin Buell & Sarah E. O’Connor
The evolutionary origins of the cat attractant nepetalactone in catnip

Data from: Behavioral constraints on local adaptation and counter-gradient variation: implications for climate change

Brandon Quinby, Mark Belk & J. Curtis Creighton
Resource allocation to growth, reproduction, and body maintenance varies within species along latitudinal gradients. Two hypotheses explaining this variation are local adaptation and counter-gradient variation. The local adaptation hypothesis proposes that populations are adapted to local environmental conditions and are therefore less adapted to environmental conditions at other locations. The counter-gradient variation hypothesis proposes that one population out performs others across an environmental gradient because its source location has greater selective pressure than other locations....

Demographic characteristics, site and phylogenetic distribution of dogs with appendicular osteosarcoma: 744 dogs (2000-2015)

Laura Selmic, Marejka Shaevitz, Joanne Tuohy, Laura Garrett & Audrey Ruple
Objective: To report demographic characteristics of a contemporary population of dogs with appendicular osteosarcoma and assess the relationship between demographic characteristics, site distribution, and phylogenetic breed clusters. Design: Retrospective case series. Methods: A search of the Veterinary Medical Database was performed for dogs with appendicular osteosarcoma as a new diagnosis. Entries were reviewed for the sex, neuter status, age at diagnosis, breed, affected limb, and tumor location. The reported breed for purebred dogs was used...

Among‐family variation in survival and gene expression uncovers adaptive genetic variation in a threatened fish

Avril M. Harder, Janna R. Willoughby, William R. Ardren & Mark R. Christie
Variation in among‐family transcriptional responses to different environmental conditions can help to identify adaptive genetic variation, even prior to a selective event. Coupling differential gene expression with formal survival analyses allows for the disentanglement of treatment effects, required for understanding how individuals plastically respond to environmental stressors, from the adaptive genetic variation responsible for differential survival. We combined these two approaches to investigate responses to an emerging conservation issue, thiamine (vitamin B1) deficiency, in a...

Data from: Lousy grouse: comparing evolutionary patterns in Alaska galliform lice to understand host evolution and host-parasite interactions

Andrew Sweet, Robert Wilson, Sarah Sonsthagen & Kevin Johnson
Understanding both sides of host-parasite relationships can provide more complete insights into host and parasite biology in natural systems. For example, phylogenetic and population genetic comparisons between a group of hosts and their closely associated parasites can reveal patterns of host dispersal, interspecies interactions, and population structure that might not be evident from host data alone. These comparisons are also useful for understanding factors that drive host-parasite coevolutionary patterns (e.g., codivergence or host switching) over...

Demographic analysis of invasible habitat fraction identifies context-dependent roles of resource availability and biotic resistance in determining invasion success

Alden Griffith, Vikki Rodgers & Jeffrey Dukes
Theories of plant invasions predict that plant communities should be more easily invaded when resources increase and/or competition decreases. We tested this with an experimentally introduced plant population by manipulating precipitation and resident community biomass. We used a spatially-explicit demographic approach to develop a new population-level metric of invasibility that quantifies the invasible habitat fraction (IHF) across the landscape. The existing community was essentially uninvasible (median IHF ≈ 0%), but experimental manipulations greatly increased the...

Structure of phospholipase Cε reveals an integrated RA1 domain and previously unidentified regulatory elements

Angeline Lyon, Ngango Rugema, Elisabeth Garland-Kuntz, Monita Sieng, Kaushik Muralidharan, Michelle M. Van Camp, Hannah O’Neill, William Mbongo, Arielle F. Selvia, Andrea T. Marti, Amanda Everly, Emmanda McKenzie & Angeline M. Lyon
Phospholipase Cepsilon (PLCepsilon) generates lipid-derived second messengers in the cardiovascular system at the plasma and perinuclear membranes. It is activated in response to a wide variety of signals, such as those conveyed by Rap1A and Ras, through a mechanism that involves its C-terminal Ras association (RA) domains (RA1 and RA2). However, the complexity and size of PLCepsilon has hindered its structural and functional analysis. In this manuscript, we report the 2.7 Å crystal structure of...

Extensive in situ radiation of feather lice on tinamous

Stephany Virrueta Herrera, Andrew Sweet, Julie Allen, Kimberly Walden, Jason Weckstein & Kevin Johnson
Tinamous host the highest generic diversity of lice of any group of birds, as well as hosting representatives of all four avian feather louse ecomorphs. Although the generic diversity of tinamou feather lice is well documented, few attempts have been made to reconstruct the phylogenetic relationships among these lice. To test whether tinamou feather lice form a monophyletic group as a whole, we used whole genome sequencing to estimate a higher-level phylogeny of tinamou feather...

Data from: Testing a key assumption of using drones as frightening devices: do birds perceive drones as risky?

Conor C. Egan, Bradley F. Blackwell, Esteban Fernandez-Juricic & Page E. Klug
Wildlife managers have recently suggested the use of unmanned aircraft systems or drones as nonlethal hazing tools to deter birds from areas of human-wildlife conflict. However, it remains unclear if birds perceive common drone platforms as threatening. Based on field studies assessing behavioral and physiological responses, it is generally assumed that birds perceive less risk from drones than from predators. However, studies controlling for multiple confounding effects have not been conducted. Our goal was to...

Genome sequencing of four culinary herbs reveals terpenoid genes underlying chemodiversity in the Nepetoideae

Nolan Bornowski, John P. Hamilton, Joshua Wood, Pan Liao, Natalia Dudareva & C. Robin Buell
Species within the mint family, Lamiaceae, are widely used for their culinary, cultural, and medicinal properties due to production of a wide variety of specialized metabolites, especially terpenoids. To further our understanding of genome diversity in the Lamiaceae and to provide a resource for mining biochemical pathways, we generated high-quality genome assemblies of four economically important culinary herbs, namely, sweet basil (Ocimum basilicum L.), sweet marjoram (Origanum majorana L.), oregano (Origanum vulgare L.), and rosemary...

Spatial-numerical associations in humans

Luke Greenacre, Jair E. Garcia, Eugene Chan, Scarlett R. Howard & Adrian G. Dyer
Number sense requires an ability to estimate values and respective differences - although how brains most efficiently processes information remains unknown. We tested if participants demonstrate processing preferences for horizontal or vertical representations during paired number comparisons. For numbers above the subitizing range of 1-4 with the largest number positioned upwards, participants demonstrated significantly faster and more accurate responses.

Priority determines tribolium competitive outcome in a food-limited environment

Aaron Smith & Zane Holditch
Flour beetles are a classic model system for studying competitive dynamics between species occupying the same ecological niche. Competitive performance is often interpreted in terms of biological species traits such as fecundity, resource use, and predation. However, many studies only measure competitive ability when species enter an environment simultaneously, and thus do not consider how the relative timing of species’ arrival may determine competitive outcome (i.e., priority effects). Whether priority effects may influence competition in...

Differing, multi-scale landscape effects on genetic diversity and differentiation in eastern chipmunks

Elizabeth Kierepka, Sara Anderson, Robert Swihart &
Understanding how habitat loss and fragmentation impact genetic variation is a major goal in landscape genetics, but to date, most studies have focused solely on the correlation between intervening matrix and genetic differentiation at a single spatial scale. Several caveats exist in these study designs, among them is the inability to include measures of genetic diversity in addition to differentiation. Both genetic metrics help predict population persistence, but are expected to function at differing spatial...

Toxin or medication? Immunotherapeutic effects of nicotine on a specialist caterpillar

Michael Garvey, Justin Bredlau, Karen Kester, Curtis Creighton & Ian Kaplan
1. A core tenant in the field of ecological immunology is that immune responses trade off with other physiological functions due to resource-allocation costs. Caterpillars, for example, tend to exhibit reduced immune responses when reared on more toxic food plants due to a cost from detoxifying or sequestering secondary metabolites, also known as the “vulnerable host hypothesis”. However, support for this hypothesis is mixed, and studies have not yet mechanistically isolated the relative contributions of...

Data from: Nighttime warming enhances ecosystem carbon-use efficiency in a temperate steppe

Jing Wang, Qian Zhang, Jian Song, Jingyi Ru, Zhenxing Zhou, Jianyang Xia, Jeffrey Dukes & Shiqiang Wan
1. Reductions in the diurnal temperature range (DTR), e.g., greater increases in daily minimum than maximum temperatures, have occurred for several decades and are projected to continue over this century, which could affect terrestrial carbon (C) cycling. Carbon-use efficiency of plants (CUEp) and ecosystems (CUEe) represents the capacity of plants to capture C and ecosystems to store C fixed from the atmosphere, respectively. Few studies have examined how grassland CUE responds to asymmetric warming. 2....

Data from: Structure, gene order, and nucleotide composition of mitochondrial genomes in parasitic lice from Amblycera

Andrew Sweet, Kevin Johnson, Yanghui Cao, Robert De Moya, Rachel Skinner, Milton Tan, Stephany Virrueta Herrera & Stephen Cameron
Parasitic lice have unique mitochondrial (mt) genomes characterized by rearranged gene orders, variable genome structures, and less AT content compared to most other insects. However, relatively little is known about the mt genomes of Amblycera, the suborder sister to all other parasitic lice. Comparing among nine different genera (including representative of all seven families), we show that Amblycera have variable and highly rearranged mt genomes. Some genera have fragmented genomes that vary considerably in length,...

Screening for simple sequences repeat markers in Hemileia vastatrix

Luis A. Ramirez Camejo, Luis C. Mejía, Amnat Eamvijarn, Jorge Díaz-Valderram, Elena Karlsen-Ayala, Elizabeth Johnson, Sòlene Pruvot-Woehl, Christophe Montagnon & M. Catherine Aime
Hemileia vastatrix is the most important fungal pathogen affecting Coffea arabica and has invaded nearly every coffee-growing region in the world and the causal agent of recurrent disease epidemics. The development of resistant varieties of coffee against H. vastatrix requires fundamental understanding of the biology of the fungus. However, the complete life cycle of H. vastatrix remains unknown and conflicting studies exist as to whether the fungus is capable of sexual reproduction or not. Here...

Hunt honey bee markers

Brock Harpur
Early honey bee QTL studies relied on RAPD markers. There was a large effort in 2007 to re-map these (Hunt et al. 2007). The sequences were often not included in the final publication and could be accessed by emailing the lead author. These markers were discovered on Greg Hunt's desktop computer in 2019. The list is composed of published and unpublished marker sequences corresponding to those in QTL papers from 1995 onwards. This is not...

Registration Year

  • 2020

Resource Types

  • Dataset


  • Purdue University
  • Purdue University West Lafayette
  • University of Illinois at Urbana Champaign
  • University of Florida
  • Purdue University Northwest
  • Michigan State University
  • Department of Agriculture
  • Henan University
  • The Ohio State University
  • Babson College