21 Works

Data from: Kin association during brood care in a facultatively social bird: active discrimination or byproduct of partner choice and demography?

Kim Jaatinen, Kristina Noreikiene, Juha Merilä & Markus Öst
Intra-group relatedness does not necessarily imply kin selection, a leading explanation for social evolution. An overlooked mechanism for generating population genetic structure is variation in longevity and fecundity, referred to as individual quality, affecting kin structure and the potential for cooperation. Individual quality also affects choosiness in partner choice, a key process explaining cooperation through direct fitness benefits. Reproductive skew theory predicts that relatedness decreases with increasing group size, but this relationship could also arise...

Data from: Bayesian adaptive Markov Chain Monte Carlo estimation of genetic parameters

Boby Mathew, Andrea M. Bauer, Petri Koistinen, Tobias C. Reetz, Jens Léon & Mikko J. Sillanpää
Accurate and fast estimation of genetic parameters that underlie quantitative traits using mixed linear models with additive and dominance effects is of great importance in both natural and breeding populations. Here we propose a new fast adaptive Markov Chain Monte Carlo (MCMC) sampling algorithm for the estimation of genetic parameters in the linear mixed model with several random effects. In the learning phase of our algorithm, we use the hybrid Gibbs sampler to learn the...

Data from: Evidence for genetic differentiation in timing of maturation among nine-spined stickleback populations

Nurul Izza Ab Ghani, Gábor Herczeg, Tuomas Leinonen & Juha Merilä
Timing of maturation is an important life-history trait that is likely to be subjected to strong natural selection. Although population differences in timing of maturation have been frequently reported in studies of wild animal populations, little is known about the genetic basis of this differentiation. Here, we investigated population and sex differences in timing of maturation within and between two nine-spined stickleback (Pungitius pungitius) populations in a laboratory breeding experiment. We found that fish from...

Data from: High degree of cryptic population differentiation in the Baltic Sea herring Clupea harengus

Jukka Corander, Kerttu Majander, Lu Cheng & Juha Merilä
Marine fish species are characterised by a low degree of population differentiation at putatively neutral marker genes. This has been traditionally attributed to ecological homogeneity and a lack of obvious dispersal barriers in marine habitats, as well as to large (effective) population sizes of most marine fish species. The herring (Clupea harengus) is a case in point – the levels of population differentiation at neutral markers, even across vast geographic areas, are typically very low...

Data from: Genetic diversity in widespread species is not congruent with species richness in alpine plant communities

Pierre Taberlet, Niklaus E. Zimmermann, Thorsten Englisch, Andreas Tribsch, Rolf Holderegger, Nadir Alvarez, Harald Niklfeld, Zbigniew Mirek, Atte Moilanen, Wolfgang Ahlmer, Paolo Ajmone Marsan, Enzo Bona, Maurizio Bovio, Philippe Choler, Elżbieta Cieślak, Gheorghe Coldea, Licia Colli, Vasile Cristea, Jean-Pierre Dalmas, Božo Frajman, Luc Garraud, Myriam Gaudeul, Ludovic Gielly, Walter Gutermann, Nejc Jogan … & Karol Marhold
The Convention on Biological Diversity (CBD) aims at the conservation of all three levels of biodiversity, i.e. ecosystems, species and genes. Genetic diversity represents evolutionary potential and is important for ecosystem functioning. Unfortunately, genetic diversity in natural populations is hardly considered in conservation strategies because it is difficult to measure and has been hypothesized to co-vary with species richness. This means that species richness is taken as a surrogate of genetic diversity in conservation planning,...

Data from: The Paleozoic origin of enzymatic lignin decomposition reconstructed from 31 fungal genomes

Dimitrios Floudas, Manfred Binder, Robert Riley, Kerrie Barry, Robert A. Blanchette, Bernard Henrissat, Angel T. Martínez, Robert Ortillar, Joseph W. Spatafora, Jagjit S. Yadav, Andrea Aerts, Isabelle Benoit, Alex Boyd, Alexis Carlson, Alex Copeland, Pedro M. Coutinho, Ronald P. De Vries, Patricia Ferreira, Keisha Findley, Brian Foster, Jill Gaskell, Dylan Glotzer, Paweł Górecki, Joseph Heitman, Cedar Hesse … & David S. Hibbett
Wood is a major pool of organic carbon that is highly resistant to decay, owing largely to the presence of lignin. The only organisms capable of substantial lignin decay are white rot fungi in the Agaricomycetes, which also contains non–lignin-degrading brown rot and ectomycorrhizal species. Comparative analyses of 31 fungal genomes (12 generated for this study) suggest that lignin-degrading peroxidases expanded in the lineage leading to the ancestor of the Agaricomycetes, which is reconstructed as...

Data from: What is a disease? Perspectives of the public, health professionals, and legislators

Kari A. O. Tikkinen, Janne S. Leinonen, Gordon H. Guyatt, Shanil Ebrahim & Teppo L. N. Järvinen
Objective: To assess the perception of diseases and the willingness to use public tax revenue for their treatment among relevant stakeholders. Design: A population-based, cross-sectional mailed survey. Setting: Finland Participants: 3 000 laypeople, 1 500 doctors, 1 500 nurses (randomly identified from the databases of the Finnish Population Register, the Finnish Medical Association and the Finnish Nurses Association), and all 200 parliament members. Main outcome measures: Respondents’ perspectives on a 5-point Likert scale on two...

Data from: Environmentally induced dispersal-related life history syndrome in the tropical butterfly, Bicyclus anynana

Marjo Saastamoinen, Paul M. Brakefield & Otso Ovaskainen
Dispersal is a key process for understanding the persistence of populations as well as the capacity of organisms to respond to environmental change. Therefore understanding factors that may facilitate or constrain the evolution of dispersal is of crucial interest. Assessments of phenotypic variation in various behavioural, physiological and morphological traits related to insect dispersal and flight performance are common, yet very little is known about the genetic associations among these traits. We have used experiments...

Data from: Phylogenomic insights into the cambrian explosion, the colonization of land and the evolution of flight in arthropoda

Christopher W. Wheat & Niklas Wahlberg
The timing of the origin of arthropods in relation to the Cambrian explosion is still controversial, as are the timing of other arthropod macroevolutionary events such as the colonization of land and the evolution of flight. Here we assess the power of a phylogenomic approach to shed light on these major events in the evolutionary history of life on earth. Analyzing a large phylogenomic dataset (122 taxa, 62 genes) with a Bayesian-relaxed molecular clock, we...

Data from: Comparative genomics of chemosensory protein genes reveals rapid evolution and positive selection in ant-specific duplicates

Jonna Kulmuni, Yannick Wurm & Pekka Pamilo
Gene duplications can have a major role in adaptation, and gene families underlying chemosensation are particularly interesting due to their essential role in chemical recognition of mates, predators and food resources. Social insects add yet another dimension to the study of chemosensory genomics, as the key components of their social life rely on chemical communication. Still, chemosensory gene families are little studied in social insects. Here we annotated chemosensory protein (CSP) genes from seven ant...

Data from: Multiple evolutionary pathways to decreased lateral plate coverage in freshwater threespine sticklebacks

Tuomas Eerikki Leinonen, R.J. Scott McCairns, Gabor Herczeg & Juha Merila
Adaptation to novel environments can be based either on standing genetic variation or variation attributable to new mutations. When standing genetic variation for a functional adaptation is lacking, and variation due to new mutations is not yet available, adaptation is possible only through alternative functional solutions. Reduction in the number of bony lateral plates as an adaptation to freshwater colonization by marine threespine sticklebacks (Gasterosteus aculeatus) has occurred in numerous independent cases through allelic substitution...

Data from: The predictive adaptive response: modeling the life history evolution of the butterfly, Bicyclus anynana, in seasonal environments.

Joost Van Den Heuvel, Marjo Saastamoinen, Paul M. Brakefield, Thomas B. L. Kirkwood, Bas J. Zwaan & Daryl P. Shanley
A predictive adaptive response (PAR) is a type of developmental plasticity where the response to an environmental cue is not immediately advantageous but instead is later in life. The PAR is a way for organisms to maximize fitness in varying environments. Insects living in seasonal environments are valuable model systems for testing the existence and form of PAR. Previous manipulations of the larval and the adult environments of the butterfly Bicyclus anynana have shown that...

Data from: Genetic variation in HIF signaling underlies quantitative variation in physiological and life history traits within lowland butterfly populations

James H. Marden, Howard W. Fescemyer, Rudolf J. Schilder, William R. Doerfler, Juan Cristobal Vera & Christopher W. Wheat
Oxygen conductance to the tissues determines aerobic metabolic performance in most eukaryotes but has cost/benefit tradeoffs. Here we examine in lowland populations of a butterfly a genetic polymorphism affecting oxygen conductance via the hypoxia inducible factor (HIF) pathway, which senses intracellular oxygen and controls the development of oxygen delivery networks. Genetically distinct clades of Glanville fritillary (Melitaea cinxia) across a continental scale maintain, at intermediate frequencies, alleles in a metabolic enzyme (succinate dehydrogenase, SDH) that...

Data from: Plasticity and heritability of morphological variation within and between parapatric stickleback demes

R. J. Scott McCairns & Louis Bernatchez
The threespine stickleback (Gasterosteus aculeatus) has emerged as an important model organism in evolutionary ecology, largely due to the repeated, parallel evolution of divergent morphotypes found in populations having colonized freshwater habitats. However, morphological divergence following colonization is not a universal phenomenon. We explore this in a large-scale estuarine ecosystem inhabited by two parapatric stickleback demes, each physiologically adapted to divergent osmoregulatory environments (fresh vs. saline waters). Using geometric morphometric analyses of wild-caught individuals, we...

Data from: Arthropod diversity in a tropical forest

Yves Basset, Lukas Cizek, Philippe Cuénoud, Raphael K. Didham, François Guilhaumon, Olivier Missa, Vojtech Novotny, Frode Ødegaard, Tomas Roslin, Jürgen Schmidl, Alexey K. Tishechkin, Neville N. Winchester, David W. Roubik, Henri-Pierre Aberlenc, Johannes Bail, Héctor Barrios, Jon R. Bridle, Gabriela Castaño-Meneses, Bruno Corbara, Gianfranco Curletti, Wesley Duarte Da Rocha, Domir De Bakker, Jacques H. C. Delabie, Alain Dejean, Laura L. Fagan … & Maurice Leponce
Most eukaryotic organisms are arthropods. Yet, their diversity in rich terrestrial ecosystems is still unknown. Here we produce tangible estimates of the total species richness of arthropods in a tropical rainforest. Using a comprehensive range of structured protocols, we sampled the phylogenetic breadth of arthropod taxa from the soil to the forest canopy in the San Lorenzo forest, Panama. We collected 6,144 arthropod species from 0.48 ha and extrapolated total species richness to larger areas...

Data from: Cultural and climatic changes shape the evolutionary history of the Uralic languages

T Honkola, O Vesakoski, N Wahlberg, J Lehtinen & K Korhonen
Quantitative phylogenetic methods have been used to study the evolutionary relationships and divergence times of biological species, and recently, these have also been applied to linguistic data to elucidate the evolutionary history of language families. In biology, the factors driving macroevolutionary processes are assumed to be either mainly biotic (the Red Queen model) or mainly abiotic (the Court Jester model) or a combination of both. The applicability of these models is assumed to depend on...

Data from: Oceanographic connectivity and environmental correlates of genetic structuring in Atlantic herring in the Baltic Sea

Amber G. F. Teacher, Carl André, Per R. Jonsson & Juha Merilä
Marine fish often show little genetic structuring in neutral marker genes, and Atlantic herring (Clupea harengus) in the Baltic Sea are no exception; historically, very low levels of population differentiation (FST ≈ 0.002) have been found, despite a high degree of interpopulation environmental heterogeneity in salinity and temperature. Recent exome sequencing and SNP studies have however shown that many loci are under selection in this system. Here, we combined population genetic analyses of a large...

Data from: Genetic estimates of population age in the water flea, Daphnia magna

John D. Robinson, Christoph R. Haag, David W. Hall, V. Pajunen & John P. Wares
Genetic datasets can be used to date evolutionary events, even on recent time scales if sufficient data are available. We used statistics calculated from multilocus microsatellite datasets to estimate population ages in data generated through coalescent simulations and in samples from populations of known age in a metapopulation of Daphnia magna in Finland. Our simulation results show that age estimates improve with additional loci and define a time frame over which these statistics are most...

Data from: Molecular evolutionary and population genomic analysis of the nine-spined stickleback using a modified restriction-site-associated DNA tag approach

Matthieu Bruneaux, Susan E. Johnston, Gábor Herczeg, Juha Merilä, Craig R. Primmer & Anti Vasemägi
In recent years, the explosion of affordable next generation sequencing technology has provided an unprecedented opportunity to conduct genome-wide studies of adaptive evolution in organisms previously lacking extensive genomic resources. Here, we characterise genome-wide patterns of variability and differentiation using pooled DNA from eight populations of the nine-spined stickleback (Pungitius pungitius L.) from marine, lake and pond environments. We developed a novel genome complexity reduction protocol, defined as paired-end double restriction-site associated DNA (PE dRAD),...

Data from: Heterozygosity-behaviour correlations in nine-spined stickleback (Pungitius pungitius) populations: contrasting effects at random and functional loci

Veronika N. Laine, Gábor Herczeg, Takahito Shikano & Craig R. Primmer
The study of heterozygosity-fitness correlations has a long history in the fields of ecology and evolutionary biology but remains controversial. Recently, it has been shown that the location of markers i.e. their genomic position with respect to their distance from functional loci can be an important factor to be considered in addition to marker number and variability. In this study, we investigated the correlation between individual heterozygosity and behaviour (aggression, boldness and feeding activity) in...

Data from: Mosaic structure of native ant supercolonies

Perttu Seppä, Helena Johansson, Niclas Gyllenstrand, Snaebjorn Palsson & Pekka Pamilo
According to the inclusive fitness theory, some degree of positive relatedness is required for the evolution and maintenance of altruism. However, ant colonies are sometimes large interconnected networks of nests which are genetically homogenous entities, causing a putative problem for the theory. We studied spatial structure and genetic relatedness in two supercolonies of the ant Formica exsecta, by using nuclear and mitochondrial markers. We show that there may be multiple pathways to supercolonial social organization...

Registration Year

  • 2012

Resource Types

  • Dataset


  • University of Helsinki
  • University of Turku
  • Leiden University
  • Universidad De Panama
  • National Museum of Natural History
  • University of Erlangen-Nuremberg
  • Research Institute for Nature and Forest
  • Department of Plant Biology
  • University of Georgia
  • University of Neuchâtel