10 Works

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: SNP-array reveals genome wide patterns of geographical and potential adaptive divergence across the natural range of Atlantic salmon (Salmo salar)

Vincent Bourret, Matthew P. Kent, Craig R. Primmer, Anti Vasemägi, Sten Karlsson, Kjetil Hindar, Philip McGinnity, Eric Verspoor, Louis Bernatchez & Sigbjørn Lien
Atlantic salmon (Salmo salar) is one of the most extensively studied fish species in the world due to its significance in aquaculture, fisheries and ongoing conservation efforts to protect declining populations. Yet, limited genomic resources have hampered our understanding of genetic architecture in the species and the genetic basis of adaptation to the wide range of natural and artificial environments it occupies. In this paper, we describe the development of a medium density Atlantic salmon...

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: 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: Adiposity, compared with masculinity, serves as a more valid cue to immunocompetence in human mate choice

Markus J. Rantala, Vinet Coetzee, Fhionna R. Moore, Ilona Skrinda, Sanita Kecko, Tatjana Krama, Inese Kivleniece & Indrikis Krams
According to the “good genes” hypothesis, females choose males based on traits that indicate the male’s genetic quality in terms of disease resistance. The “immunocompetence handicap hypothesis (ICHH)” proposed that secondary sexual traits serve as indicators of male genetic quality because they indicate that males can contend with the immunosuppressive effects of testosterone. Masculinity is commonly assumed to serve as such a secondary sexual trait. Yet women do not consistently prefer masculine looking men, nor...

Data from: Positive relationships between association strength and phenotypic similarity characterize the assembly of mixed-species bird flocks worldwide

Hari Sridhar, Umesh Srinivasan, Robert A. Askins, Julio Cesar Canales Delgadillo, Chao-Chieh Chen, David N. Ewert, George A. Gale, Eben Goodale, Wendy K. Gram, Patrick J. Hart, Keith A. Hobson, Richard L. Hutto, Sarath W. Kotagama, Jessie L. Knowlton, Tien Ming Lee, Charles A. Munn, Somchai Nimnuan, B. Z. Nizam, Guillaume Péron, V. V. Robin, Amanda D. Rodewald, Paul G. Rodewald, Robert L. Thomson, Pranav Trivedi, Steven L. Van Wilgenburg … & Kartik Shanker
Competition theory predicts that communities at small spatial scales should consist of species more dissimilar than expected by chance. We find a strikingly different pattern in a multi-continent dataset (55 presence-absence matrices from 24 locations) on the composition of mixed-species bird flocks, important subunits of local bird communities the world over. Using null models and randomization tests followed by meta-analysis, we find the association strength of species in flocks to be strongly related to similarity...

Data from: Genetic factors affecting food-plant specialization of an oligophagous seed predator

Liisa Laukkanen, Roosa Leimu, Anne Muola, Marianna Lilley & Pia Mutikainen
Several ecological and genetic factors affect the diet specialization of insect herbivores. The evolution of specialization may be constrained by lack of genetic variation in herbivore performance on different food plant species. By traditional view, trade-offs, i.e., negative genetic correlations between the performance of the herbivores on different food-plant species favour the evolution of specialization. To investigate whether there is genetic variation or trade-offs in herbivore performance between different food plants that may influence specialization...

Data from: Insect herbivores drive real-time ecological and evolutionary change in plant populations

Anurag A. Agrawal, Amy P. Hastings, M. T. J. Johnson, J. L. Maron & Juha-Pekka Salminen
Insect herbivores are hypothesized to be major factors affecting the ecology and evolution of plants. We tested this prediction by suppressing insects in replicated field populations of a native plant, Oenothera biennis, which reduced seed predation, altered interspecific competitive dynamics, and resulted in rapid evolutionary divergence. Comparative genotyping and phenotyping of nearly 12,000 O. biennis individuals revealed that in plots protected from insects, resistance to herbivores declined through time due to changes in flowering time...

Data from: Senescence in immune priming and attractiveness in a beetle

Janina Daukšte, Inese Kivleniece, Tatjana Krama, Markus J. Rantala & Indrikis Krams
Age-related decline in immune activity is referred to as immunosenescence and has been observed for both the adaptive immune response of vertebrates and the innate immune system of invertebrates. Since maintaining a basic level of immune defence and mounting an immune response is costly, optimal investment in immune function should vary over a wide range of individual states such as the individual’s age. In this study we tested whether the immune response and immunological priming...

Data from: There is more than one way to skin a G matrix

Derek A. Roff, Markus J. Rantala, Jenni M. Prokkola & Indrikis Krams
Because of its importance in directing evolutionary trajectories there has been considerable interest in comparing variation among genetic variance-covariance ( G) matrices. Numerous statistical approaches have been suggested but no general analysis of the relationship among these methods has previously been published. In this paper we used data from a half-sib experiment and simulations to explore the results of applying eight tests (T method, modified Mantel test, Bartlett’s test, Flury hierarchy, Jackknife-MANOVA, Jackknife-eigenvalue test, random...

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