13 Works

Data from: Using simulations to evaluate Mantel-based methods for assessing landscape resistance to gene flow

Katherine A. Zeller, Tyler G. Creech, Katie L. Millette, Rachel S. Crowhurst, Robert A. Long, Helene H. Wagner, Niko Balkenhol & Erin L. Landguth
Mantel-based tests have been the primary analytical methods for understanding how landscape features influence observed spatial genetic structure. Simulation studies examining Mantel-based approaches have highlighted major challenges associated with the use of such tests and fueled debate on when the Mantel test is appropriate for landscape genetics studies. We aim to provide some clarity in this debate using spatially explicit, individual-based, genetic simulations to examine the effects of the following on the performance of Mantel-based...

Data from: Evidence of phenotypic plasticity of penis morphology and delayed reproductive maturation in response to male competition in waterfowl

Patricia L. R. Brennan, Richard O. Prum & Derek Feng
Ducks are an excellent group to study avian genital evolution. Penis morphology of ducks is diverse, and penis length and elaboration are positively correlated with levels of male competition resulting from forced extra-pair copulations, and with female genital elaboration resulting from sexual conflict. Here we examined whether penis morphology is affected by social environment. We found experimental evidence that in a male-biased social environment, consisting of several males and fewer females, the penis in Lesser...

Data from: Baby fish working out: an epigenetic source of adaptive variation in the cichlid jaw

Yinan Hu & R. Craig Albertson
Understanding the developmental processes that underlie the production of adaptive variation (i.e. the ‘arrival of the fittest’) is a major goal of evolutionary biology. While most evo-devo studies focus on the genetic underpinnings of adaptive phenotypic variation, factors beyond changes in nucleotide sequence can also play a major role in shaping developmental outcomes. Here, we document a vigorous but enigmatic gaping behaviour during the early development of Lake Malawi cichlid larvae. The onset of the...

Data from: Experimental test of genetic rescue in isolated populations of brook trout

Zachary L. Robinson, Jason A. Coombs, Mark Hudy, Keith H. Nislow, Benjamin H. Letcher & Andrew R. Whiteley
Genetic rescue is an increasingly considered conservation measure to address genetic erosion associated with habitat loss and fragmentation. The resulting gene flow from facilitating migration may improve fitness and adaptive potential, but is not without risks (e.g., outbreeding depression). Here, we conducted a test of genetic rescue by translocating ten (five of each sex) brook trout (Salvelinus fontinalis) from a single source to four nearby and isolated stream populations. To control for the demographic contribution...

Data from: All roads lead to weediness: patterns of genomic divergence reveal extensive recurrent weedy rice origins from South Asian Oryza

Zhongyun Huang, Nelson D. Young, Michael Reagon, Katie E. Hyma, Kenneth M. Olsen, Yulin Jia & Ana L. Caicedo
Weedy rice (Oryza spp.), a weedy relative of cultivated rice (O. sativa), infests and persists in cultivated rice fields worldwide. Many weedy rice populations have evolved similar adaptive traits, considered part of the “agricultural weed syndrome,” making this an ideal model to study the genetic basis of parallel evolution. Understanding parallel evolution hinges on accurate knowledge of the genetic background and origins of existing weedy rice groups. Using population structure analyses of South Asian and...

Data from: Gypsy moth herbivory induced volatiles and reduced parasite attachment to cranberry hosts

Muvari C. Tjiurutue, Hilary A. Sandler, Monica F. Kersch-Becker, Nina Theis & Lynn S. Adler
Interactions between species can have cascading effects that shape subsequent interactions. For example, herbivory can induce plant defenses that affect subsequent interactions with herbivores, pathogens, mycorrhizae, and pollinators. Parasitic plants are present in most ecosystems, and play important roles in structuring communities. However, the effects of host herbivory on parasitic plants, and the potential mechanisms underlying such effects, are not well known. We conducted a greenhouse study to ask whether gypsy moth (Lymantria dispar) damage,...

Data from: Comparison of photo-matching algorithms commonly used for photographic capture-recapture studies

Maximilian Matthé, Marco Sannolo, Kristopher Winiarski, Annemarieke Spitzen-Van Der Sluijs, Daniel Goedbloed, Sebastian Steinfartz & Ulrich Stachow
Photographic capture–recapture is a valuable tool for obtaining demographic information on wildlife populations due to its noninvasive nature and cost-effectiveness. Recently, several computer-aided photo-matching algorithms have been developed to more efficiently match images of unique individuals in databases with thousands of images. However, the identification accuracy of these algorithms can severely bias estimates of vital rates and population size. Therefore, it is important to understand the performance and limitations of state-of-the-art photo-matching algorithms prior to...

Data from: Neighbor effects on tree architecture: functional trade-offs balancing crown competitiveness with wind resistance

David W. MacFarlane & Brian Kane
1. The architecture of trees is the result of constrained, morphologically plastic growth—constrained by an underlying architectural model embedded in their genome, the structure of which can be significantly altered during growth to match the changing environmental conditions to which the tree is exposed. Here, we examined the hypothesis that crowding from neighbors should cause trees to optimize traits for light competition at the expense of wind resistance, with the reverse being true for trees...

Data from: Effect of craniofacial genotype on the relationship between morphology and feeding performance in cichlid fishes

Dave G. Matthews, R. Craig Albertson & David G. Matthews
The relationship between morphology and performance is complex, but important for understanding the adaptive nature of morphological variation. Recent studies have sought to better understand this system by illuminating the interconnectedness of different functional systems; however, the role of genetics is often overlooked. In this study, we attempt to gain insights into this relationship by examining the effect of genotypic variation at putative craniofacial loci on the relationship between morphology and feeding performance in cichlids....

Data from: Trpc2 Pseudogenization dynamics in bats reveal ancestral vomeronasal signaling, then pervasive loss

Laurel R. Yohe, Ramatu Abubakar, Christina Giordano, Elizabeth Dumont, Karen Sears, Stephen J. Rossiter, Liliana M. Davalos & Karen E. Sears
Comparative methods are often used to infer loss or gain of complex phenotypes, but few studies take advantage of genes tightly linked with complex traits to test for shifts in the strength of selection. In mammals vomerolfaction detects chemical cues mediating many social and reproductive behaviors and is highly conserved, but all bats exhibit degraded vomeronasal structures with the exception of two families (Phyllostomidae and Miniopteridae). These families either regained vomerolfaction after ancestral loss, or...

Data from: Co-occurrence and hybridization of anther-smut pathogens specialized on Dianthus hosts

Elsa Petit, Casey Silver, Amandine Cornille, Pierre Gladieux, Lisa Rosenthal, Emily Bruns, Sarah Yee, Janis Antonovics, Tatiana Giraud & Michael Hood
Host specialization has important consequences for the diversification and ecological interactions of obligate pathogens. The anther-smut disease of natural plant populations, caused by Microbotryum fungi, has been characterized by specialized host-pathogen interactions, which contribute in part to the isolation among these numerous fungal species. This study investigated the molecular variation of Microbotryum pathogens within the geographic and host-specific distributions on wild Dianthus species in southern European Alps. In contrast to prior studies on this pathogen...

Data from: Common evolutionary trends underlie the four-bar linkage systems of sunfish and mantis shrimp

Yinan Hu, Nathan Nelson-Maney, Philip S.L. Anderson & Philip S. L. Anderson
Comparative biomechanics offers an opportunity to explore the evolution of disparate biological systems that share common underlying mechanics. Four-bar linkage modelling has been applied to various biological systems such as fish jaws and crustacean appendages to explore the relationship between biomechanics and evolutionary diversification. Mechanical sensitivity states that the functional output of a mechanical system will show differential sensitivity to changes in specific morphological components. We document similar patterns of mechanical sensitivity in two disparate...

Data from: Functional and evolutionary consequences of cranial fenestration in birds

Sander W.S. Gussekloo, Michael A. Berthaume, Daniel R Pulaski, Irene Westbroek, Jan H. Waarsing, Robin Heinen, Ian R. Grosse, Elizabeth R. Dumont & Sander W. S. Gussekloo
Ostrich-like birds (Palaeognathae) show very little taxonomic diversity while their sister taxon (Neognathae) contains roughly 10000 species. The main anatomical differences between the two taxa are in the crania. Palaeognaths lack an element in the bill called the lateral bar that is present in both ancestral theropods and modern neognaths, have thin zones in the bones of the bill, and robust bony elements on the ventral surface of their crania. Here we use a combination...

Registration Year

  • 2017
    13

Resource Types

  • Dataset
    13

Affiliations

  • University of Massachusetts Amherst
    13
  • University of Montana
    2
  • University of Illinois System
    2
  • Biology and Genetics of Plant-Pathogen Interactions
    1
  • Oregon State University
    1
  • Technische Universität Braunschweig
    1
  • University of Rhode Island
    1
  • University of Virginia
    1
  • Erasmus University Medical Center
    1
  • Nederlands Instituut voor Ecologie
    1