Data from: Sexual selection on song and cuticular hydrocarbons in two distinct populations of Drosophila montanaParis Veltsos, Claude Wicker-Thomas, Roger K. Butlin, Anneli Hoikkala & Michael G. Ritchie
Sexual selection has the potential to contribute to population divergence and speciation. Most studies of sexual selection in Drosophila have concentrated on a single signaling modality, usually either courtship song or cuticular hydrocarbons (CHCs), which can act as contact pheromones. We have examined the relationship between both signal types and reproductive success using F1-3 offspring of wild-collected flies, raised in the lab. We used two populations of the Holarctic species Drosophila montana, that represent different...
Data from: Food makes you a target: disentangling genetic, physiological, and behavioral effects determining susceptibility to infectionOtto Seppälä, Anssi Karvonen, Maarit Haataja, Marja Kuosa & Jukka Jokela
Genetics, physiology and behavior are all expected to influence the susceptibility of hosts to parasites. Furthermore, interactions between genetic and other factors are suggested to contribute to the maintenance of genetic polymorphism in resistance when the relative susceptibility of host genotypes is context dependent. We used a maternal sibship design and long- and short-term food deprivation treatments to test the role of family-level genetic variation, body condition, physiological state and foraging behavior on the susceptibility...
Data from: Two distinct genomic regions, harbouring the period and fruitless genes, affect male courtship song in Drosophila montanaMalgorzata Lagisz, Shuo-Yang Wen, Jarkko Routtu, Kirsten Klappert, Dominique Mazzi, Ramiro Morales-Hojas, Jorge Vieira, Anneli Hoikkala, Michael G. Ritchie, Roger K. Butlin, Martin A Schäfer & S-Y Wen
Acoustic signals often play a significant role in pair formation and in species recognition. Determining the genetic basis of signal divergence will help to understand signal evolution by sexual selection and its role in the speciation process. An earlier study investigated QTL for male courtship song carrier frequency in Drosophila montana using microsatellite markers. We refined this study by adding to the linkage map markers for ten candidate genes known to affect song production in...
Data from: Multiple quantitative trait loci influence intra-specific variation in genital morphology between phylogenetically distinct lines of Drosophila montanaMartin A Schäfer, Jarkko Routtu, Jorge Vieira, Anneli Hoikkala, Mike G Ritchie & Christian Schlötterer
The evolution of animal genitalia has gained renewed interest, because of their potential roles during sexual selection and early stages of species formation. Although central to understanding the evolutionary process, knowledge of the genetic basis of natural variation in genital morphology is limited to a very few species. Using an out-bred cross between phylogenetically distinct lines of Drosophila montana, we characterized quantitative trait loci (QTLs) affecting the size and shape of the distiphallus, a prominent...
Data from: Negative frequency-dependent selection of sexually antagonistic alleles in Myodes glareolusMikael Mokkonen, Hanna Kokko, Esa Koskela, Jussi Lehtonen, Tapio Mappes, Henna Martiskainen & Suzanne C. Mills
Sexually antagonistic genetic variation, where optimal values of traits are sex-dependent, is known to slow the loss of genetic variance associated with directional selection on fitness-related traits. However, sexual antagonism alone is not sufficient to maintain variation indefinitely. Selection of rare forms within the sexes can help to conserve genotypic diversity. We combined theoretical models and a field experiment with Myodes glareolus to show that negative frequency-dependent selection on male dominance maintains variation in sexually...
University of Jyväskylä5
University of St Andrews3
French National Centre for Scientific Research2
University of Porto2
University of Sheffield2
Swiss Federal Institute of Aquatic Science and Technology1
Australian National University1
University of Veterinary Medicine Vienna1
University of Zurich1
University of Basel1