Data from: The roles of interspecific variability in seed mass and soil resource availability in root system developmentTereza Mašková & Martin Weiser
Aims Because plant roots serve mainly as organs for the uptake of water and nutrients, we aimed to test whether the development of seedling roots is influenced by the two principal nutrient sources—the substrate and the pool stored in the seed itself. Methods Using seven Fabaceae species that differ in seed mass, we observed their early root system development under four levels of nutrient availability. Transparent-wall rhizoboxes allowed us to track root development and to...
Data from: Golden orbweavers ignore biological rules: phylogenomic and comparative analyses unravel a complex evolution of sexual size dimorphismMatjaz Kuntner, Chris Hamilton, Ren-Chung Cheng, Matjaz Gregoric, Nik Lupse, Tjasa Lokovsek, Emily Moriarty Lemmon, Alan R. Lemmon, Ingi Agnarsson, Jonathan A. Coddington, Jason Bond, Chris A Hamilton & Jason E Bond
Instances of sexual size dimorphism (SSD) provide the context for rigorous tests of biological rules of size evolution, such as Cope’s Rule (phyletic size increase), Rensch’s Rule (allometric patterns of male and female size), as well as male and female body size optima. In certain spider groups, such as the golden orbweavers (Nephilidae), extreme female-biased SSD (eSSD, female:male body length ≥ 2) is the norm. Nephilid genera construct webs of exaggerated proportions, which can be...
Data from: Sperm divergence in a passerine contact zone: indication of reinforcement at the gametic levelTomas Albrecht, Kamila Opletalova, Jiří Reif, Vaclav Janousek, Lubomir Pialek, Emily Rebecca Alison Cramer, Arild Johnsen & Radka Reifová
Postcopulatory sexual selection may promote evolutionary diversification in sperm form, but the contribution of between-species divergence in sperm morphology to the origin of reproductive isolation and speciation remains little understood. To assess the possible role of sperm diversification in reproductive isolation, we studied sperm morphology in two closely related species, the common nightingale (Luscinia megarhynchos) and the thrush nightingale (L. luscinia), that hybridize in a secondary contact zone spanning Central and Eastern Europe. We found:...
Ongoing climate change is thought to disrupt trophic relationships, with consequences for complex interspecific interactions, yet the effects of climate change on species interactions are poorly understood, and such effects have not been documented at a global scale. Using a single database of 38,191 nests from 237 populations, we found that shorebirds have experienced a worldwide increase in nest predation over the past 70 years. Historically, there existed a latitudinal gradient in nest predation, with...
Data from: A single Tim translocase in the mitosomes of Giardia intestinalis illustrates convergence of protein import machines in anaerobic eukaryotesEva Pyrihova, Alžběta Motyčková, Luboš Voleman, Natalia Wandyszewska, Radovan Fišer, Gabriela Seydlová, Andrew J. Roger, Martin Kolisko, Pavel Dolezal & Andrew Roger
Mitochondria have evolved diverse forms across eukaryotic diversity in adaptation to anaerobiosis. Mitosomes are the simplest and the least well-studied type of anaerobic mitochondria. Transport of proteins via TIM complexes, composed of three proteins of the Tim17 protein family (Tim17/22/23), is one of the key unifying aspects of mitochondrial and mitochondria-derived organelles. However, multiple experimental and bioinformatic attempts have so far failed to identify the nature of TIM in mitosomes of the anaerobic metamonad protist,...
Data from: DNA methylation as a possible mechanism affecting ability of natural populations to adapt to changing climateZuzana Munzbergova, Vit Latzel, Maria Surinova & Vera Hadincova
Environmentally induced epigenetic variation has been recently recognized as a possible mechanism allowing plants to rapidly adapt to novel conditions. Despite increasing evidence on the topic, little is known on how epigenetic variation affects responses of natural populations to changing climate. We studied the effects of experimental demethylation (DNA methylation is an important mediator of heritable control of gene expression) on performance of a clonal grass, Festuca rubra, coming from localities with contrasting temperature and...
University of South Bohemia in České Budějovice4
Academy of Sciences of the Czech Republic4
Czech University of Life Sciences Prague3
University of Konstanz3
Institute of Vertebrate Biology3
Moscow State University2
German Center for Integrative Biodiversity Research2
Institute of Microbiology2