93 Works

Data from: The fossil Osmundales (Royal Ferns)—a phylogenetic network analysis, revised taxonomy, and evolutionary classification of anatomically preserved trunks and rhizomes

Guido W. Grimm, Benjamin Bomfleur & Stephen McLoughlin
The Osmundales (Royal Fern order) originated in the late Paleozoic and is the most ancient surviving lineage of leptosporangiate ferns. In contrast to its low diversity today (less than 20 species in six genera), it has the richest fossil record of any extant group of ferns. The structurally preserved trunks and rhizomes alone are referable to more than 100 fossil species that are classified in up to 20 genera, four subfamilies, and two families. This...

Data from: Mechanistic model of evolutionary rate variation en route to a nonphotosynthetic lifestyle in plants

Susann Wicke, Kai F. Müller, Claude W. DePamphilis, Dietmar Quandt, Sidonie Bellot & Gerald M. Schneeweiss
Because novel environmental conditions alter the selection pressure on genes or entire subgenomes, adaptive and nonadaptive changes will leave a measurable signature in the genomes, shaping their molecular evolution. We present herein a model of the trajectory of plastid genome evolution under progressively relaxed functional constraints during the transition from autotrophy to a nonphotosynthetic parasitic lifestyle. We show that relaxed purifying selection in all plastid genes is linked to obligate parasitism, characterized by the parasite’s...

Data from: Variation in the post-mating fitness landscape in fruitflies

Claudia Fricke & Tracey Chapman
Sperm competition is pervasive and fundamental to determining a male’s overall fitness. Sperm traits and seminal fluid proteins (Sfps) are key factors. However, studies of sperm competition may often exclude females that fail to remate during a defined period. Hence, the resulting datasets contain fewer data from the potentially fittest males that have most success in preventing female remating. It is also important to consider a male’s reproductive success before entering sperm competition, which is...

Data from: Visible persistence of single-transient random dot patterns: spatial parameters affect the duration of fading percepts

Maximilian Bruchmann, Kathrin Thaler & Dirk Vorberg
Visible persistence refers to the continuation of visual perception after the physical termination of a stimulus. We studied an extreme case of visible persistence by presenting two matrices of randomly distributed black and white pixels in succession. On the transition from one matrix to the second, the luminance polarity of all pixels within a disk- or annulus-shaped area reversed, physically creating a single second-order transient signal. This transient signal produces the percept of a disk...

Data from: Adaptive shaping of the behavioural and neuroendocrine phenotype during adolescence

Tobias D. Zimmermann, Sylvia Kaiser, Michael B. Hennessy & Norbert Sachser
Environmental conditions during early life can adaptively shape the phenotype for the prevailing environment. Recently, it has been suggested that adolescence represents an additional temporal window for adaptive developmental plasticity, though supporting evidence is scarce. Previous work has shown that male guinea pigs living in large mixed-sex colonies develop a low-aggressive phenotype as part of a queuing strategy that is adaptive for integrating into large unfamiliar colonies. By contrast, males living in pairs during adolescence...

Data from: Resting-state gamma-band power alterations in schizophrenia reveal E/I-balance abnormalities across illness-stages

Tineke Grent-'T-Jong, Joachim Gross, Jozien Goense, Michael Wibral, Ruchika Gajwani, Andrew I. Gumley, Stephen M. Lawrie, Matthias Schwannauer, Frauke Schultze-Lutter, Tobias Navarro Schröder, Dagmar Koethe, F. Markus Leweke, Wolf Singer & Peter J. Uhlhaas
We examined alterations in E/I-balance in schizophrenia (ScZ) through measurements of resting-state gamma-band activity in participants meeting clinical high-risk (CHR) criteria (n = 88), 21 first episode (FEP) patients and 34 chronic ScZ-patients. Furthermore, MRS-data were obtained in CHR-participants and matched controls. Magnetoencephalographic (MEG) resting-state activity was examined at source level and MEG-data were correlated with neuropsychological scores and clinical symptoms. CHR-participants were characterized by increased 64–90 Hz power. In contrast, FEP- and ScZ-patients showed...

Data from: A multi-faceted approach testing the effects of previous bacterial exposure on resistance and tolerance

Megan A. M. Kutzer, Joachim Kurtz & Sophie A. O. Armitage
1. Hosts can alter their strategy towards pathogens during their lifetime, i.e., they can show phenotypic plasticity in immunity or life history. Immune priming is one such example, where a previous encounter with a pathogen confers enhanced protection upon secondary challenge, resulting in reduced pathogen load (i.e. resistance) and improved host survival. However, an initial encounter might also enhance tolerance, particularly to less virulent opportunistic pathogens that establish persistent infections. In this scenario, individuals are...

Data from: Crop identity and memory effects on aboveground arthropods in a long-term crop rotation experiment

Michael Meyer, David Ott, Philipp Götze, Heinz-Josef Koch & Christoph Scherber
Agricultural landscapes are globally dominated by monocultures under intensive management. This is one of the main reasons for biodiversity loss and insect population decline in many regions all over the world. Agroecosystem biodiversity in these areas can be enhanced by cropping system diversification, such as crop rotations. Yet, long-term studies on effects of crop rotations on aboveground agrobiodiversity are lacking. We set up a 10-year long-term crop-rotation experiment in Central Germany and monitored the temporal...

Data from: An integrated model of phenotypic trait changes and site-specific sequence evolution

Eli Levy Karin, Susann Wicke, Tal Pupko & Itay Mayrose
Recent years have seen a constant rise in the availability of trait data, including morphological features, ecological preferences, and life history characteristics. These phenotypic data provide means to associate genomic regions with phenotypic attributes, thus allowing the identification of phenotypic traits associated with the rate of genome and sequence evolution. However, inference methodologies that analyze sequence and phenotypic data in a unified statistical framework are still scarce. Here, we present TraitRateProp, a probabilistic method that...

Data from: Haemoglobin-mediated response to hyper-thermal stress in the keystone species Daphnia magna

Maria Cuenca Cambronero, Bettina Zeis & Luisa Orsini
Anthropogenic global warming has become a major geological and environmental force driving drastic changes in natural ecosystems. Due to the high thermal conductivity of water and the effects of temperature on metabolic processes, freshwater ecosystems are among the most impacted by these changes. The ability to tolerate changes in temperature may determine species long-term survival and fitness. Therefore, it is critical to identify coping mechanisms to thermal and hyper-thermal stress in aquatic organisms. A central...

Data and code for: Replay of innate vocal patterns during sleep in suboscines

Juan Francisco Döppler, Manon Peltier, Ana Amador, Franz Goller & Gabriel Mindlin
Activation of forebrain circuitry during sleep has been variably characterized as ‘pre- or replay’ and has been linked to memory consolidation. The evolutionary origins of this mechanism, however, are unknown. Sleep activation of the sensori-motor pathways of learned birdsong is a particularly useful model system because the muscles controlling the vocal organ are activated, revealing syringeal activity patterns for direct comparison with those of day-time vocal activity. Here we show that suboscine birds, which develop...

Data from: Growth and survival of the superorganism: ant colony macronutrient intake and investment

Chris Smith & Yeisson Gutierrez
In this study, we used two common ant species (Lasius niger and L. neoniger) to assay how they translate variation in the diet (both in composition and frequency) into growth. We measured colony development for over 8 months and measured several phenotypic traits of the worker caste, and examined whether forager preference corresponded with diet quality. Optimal colony growth was a balance between survival and growth, and each of these were maximized with different nutrient...

Reproductive ecology of Drosophila obscura: A cold adapted species

Berta Canal, Aileen Seipelt & Claudia Fricke
The study of insect reproductive ecology is essential to determine species distributions and fate under changing environments. Species adapted to harsh environments are good examples to investigate the reproductive mechanisms that allow them to cope with the challenging conditions. We here focus on studying for the first time the reproductive ecology of a cold-adapted D. obscura strain collected in Finland (subarctic climate region). We tested several reproductive traits such as fertility and fecundity to observe...

Data from: Comparative transcriptomic analysis of the mechanisms underpinning ageing and fecundity in social insects

Judith Korb, Karen Meusemann, Denise Aumer, Abel Bernadou, Daniel Elsner, Barbara Feldmeyer, Susanne Foitzik, Jürgen Heinze, Romain Libbrecht, Silu Lin, Megha Majoe, José Manuel Monroy Kuhn, Volker Nehring, Matteo A. Negroni, Robert J. Paxton, Alice C. Séguret, Marah Stoldt & Thomas Flatt
Exceptional longevity of social insect queens despite their lifelong high fecundity remains poorly understood in ageing biology. To gain insights into the mechanisms that might underlie ageing in social insects, we compared gene expression patterns between young and old castes (both queens and workers) across different lineages of social insects (two termite, two bee and two ant species). After global analyses, we paid particular attention to genes of the insulin/insulin-like growth factor 1 signalling (IIS)/target...

Evidence for reduced immune gene diversity and activity during the evolution of termites

Shulin He, Thorben Sieksmeyer, Yanli Che, M. Alejandra Esparza Mora, Ronald Banasiak, Mark C. Harrison, Petr Stiblik, Šobotník Jan, Zongqing Wang, Paul Johnston, Dino P. McMahon, Jan Šobotník & Paul R. Johnston
This dataset contains data from a termite immunity related study described in the paper: “He Shulin, Sieksmeyer Thorben, Che Yanli, Mora M. Alejandra Esparza, Stiblik Petr, Banasiak Ronald, Harrison Mark C., Šobotník Jan, Wang Zongqing, Johnston Paul R. and McMahon Dino P. 2021Evidence for reduced immune gene diversity and activity during the evolution of termitesProc. R. Soc. B.288:20203168.http://doi.org/10.1098/rspb.2020.3168”. The study investigates the evolution of termite molecular immune system: evolution of immune gene family along a...

Data from: The representational dynamics of perceived voice emotions evolve from categories to dimensions

Bruno L. Giordano, Caroline Whiting, Nikolaus Kriegeskorte, Sonja A. Kotz, Joachim Gross & Pascal Belin
Long-standing affective science theories conceive the perception of emotional stimuli either as discrete categories (for example, an angry voice) or continuous dimensional attributes (for example, an intense and negative vocal emotion). Which position provides a better account is still widely debated. Here we contrast the positions to account for acoustics-independent perceptual and cerebral representational geometry of perceived voice emotions. We combined multimodal imaging of the cerebral response to heard vocal stimuli (using functional magnetic resonance...

Data from: Plant provenance affects pollinator network: implications for ecological restoration

Anna Bucharova, Christian Lampei, Malte Conrady, Janis Matheja, Emilia May, Michael Meyer & David Ott
The selection of plant provenance for ecological restoration is an intensively debated topic. Throughout this debate, arguments mostly focus on plant performance, but little attention is paid to the effects of provenance on other members of the restored ecosystem. On the other hand, in restoration projects that focus specifically on supporting interacting biota, for example, flower stripes among fields to support pollinators, the provenance choice is often not considered, partly because the effect of provenance...

Data from: A barrier island perspective on species-area-relationships

Christoph Scherber, Hagen Andert, Rolf Niedringhaus & Teja Tscharntke
Predictions of species richness by island area are a classical cornerstone in ecology, while the specific features of barrier islands have been little appreciated. Many shorelines are occupied by barrier islands, which are shaped by offshore sedimentation processes and annual storm tide events. Hence, the appearance of these islands may vary between years if they are not protected by dykes. Here, we analyzed more than 2,990 species across 36 taxonomic groups (including vertebrates, invertebrates and...

Data from: True homoplasy of retrotransposon insertions in primates

Liliya Doronina, Olga Reising, Hiram Clawson, David A. Ray & Jürgen Schmitz
How reliable are the presence/absence insertion patterns of the supposedly homoplasy-free retrotransposons, that were randomly inserted in the quasi infinite genomic space? To systematically examine this question in an up-to-date, multi-genome comparison, we screened millions of primate transposed Alu SINE elements for incidences of homoplasious precise insertions and deletions. In genome-wide analyses, we identified and manually verified nine cases of precise parallel Alu insertions of apparently identical elements at orthologous positions in two ape lineages...

Data from: Perceptually relevant speech tracking in auditory and motor cortex reflects distinct linguistic features

Anne Keitel, Joachim Gross & Christoph Kayser
During online speech processing, our brain tracks the acoustic fluctuations in speech at different timescales. Previous research has focused on generic timescales (for example, delta or theta bands) that are assumed to map onto linguistic features such as prosody or syllables. However, given the high intersubject variability in speaking patterns, such a generic association between the timescales of brain activity and speech properties can be ambiguous. Here, we analyse speech tracking in source-localised magnetoencephalographic data...

Data from: Dichoptic metacontrast masking functions to infer transmission delay in optic neuritis

Maximilian Bruchmann, Catharina Korsukewitz, Julia Krämer, Heinz Wiendl & Sven G. Meuth
Optic neuritis (ON) has detrimental effects on the transmission of neuronal signals generated at the earliest stages of visual information processing. The amount, as well as the speed of transmitted visual signals is impaired. Measurements of visual evoked potentials (VEP) are often implemented in clinical routine. However, the specificity of VEPs is limited because multiple cortical areas are involved in the generation of P1 potentials, including feedback signals from higher cortical areas. Here, we show...

Data from: The effect of diet and time after bacterial infection on fecundity, resistance, and tolerance in Drosophila melanogaster

Megan A. M. Kutzer & Sophie A. O. Armitage
Mounting and maintaining an effective immune response in the face of infection can be costly. The outcome of infection depends on two host immune strategies: resistance and tolerance. Resistance limits pathogen load, while tolerance reduces the fitness impact of an infection. While resistance strategies are well studied, tolerance has received less attention, but is now considered to play a vital role in host–pathogen interactions in animals. A major challenge in ecoimmunology is to understand how...

Data from: Geographical variation in the heterogeneity of mutualistic networks

Shoko Sakai, Sören Metelmann, Yukihiko Toquenaga & Arndt Telshow
Plant–animal mutualistic networks are characterized by highly heterogeneous degree distributions. The majority of species interact with few partner species, while a small number are highly connected to form network hubs that are proposed to play an important role in community stability. It has not been investigated, however, if or how the degree distributions vary among types of mutualisms or communities, or between plants and animals in the same network. Here, we evaluate the degree distributions...

Data from: Downregulation of the evolutionary capacitor Hsp90 is mediated by social cues

Robert Peuß, Hendrik Eggert, Sophie A. O. Armitage & Joachim Kurtz
The relationship between robustness and evolvability is a long-standing question in evolution. Heat shock protein 90 (HSP90), a molecular chaperone, has been identified as a potential capacitor for evolution, since it allows for the accumulation and release of cryptic genetic variation, and also for the regulation of novel genetic variation through transposon activity. However, to date, it is unknown whether Hsp90 expression is regulated upon demand (i.e. when the release of cryptic genetic variation is...

Data from: Male pregnancy and bi-parental immune priming

Olivia Roth, Verena Klein, Anne Beemelmanns, Jörn P. Scharsack & Thorsten B. H. Reusch
In vertebrates, maternal transfer of immunity via the eggs or the placenta provides offspring with crucial information on prevailing pathogens and parasites. Males contribute little to such trans-generational immune priming, either because they do not share the environment and parasite pressure of the offspring, or because sperm are suggested to be too small for transfer of immunity. In the teleost group of Syngnathids (pipefish, seahorses and sea dragons) males brood female eggs in a placenta-like...

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