Data from: Bringing habitat information into statistical tests of local adaptation in quantitative traits: a case study of nine-spined sticklebacks ...

• Main Authors: Karhunen, Markku, Ovaskainen, Otso, Herczeg, Gabor, Merilä, Juha
• Format: Dataset
• Language: English
• Published: Dryad 2013
• Subjects: Pungitius pungitius; Holocene; Fennoscandian
• Online Access: https://dx.doi.org/10.5061/dryad.sg546; https://datadryad.org/stash/dataset/doi:10.5061/dryad.sg546

Detection of footprints of historical natural selection on quantitative traits in cross-sectional data sets is challenging, especially when the number of populations to be compared is small and the populations are subject to strong random genetic drift. We extend a recent Bayesian multivariate approach to differentiate between selective and neutral causes of population differentiation by the inclusion of habitat information. The extended framework allows one to test for signals of selection in two ways: by comparing the patterns of population differentiation in quantitative traits and in neutral loci, and by comparing the similarity of habitats and phenotypes. We illustrate the framework using data on variation of eight morphological and behavioral traits among four populations of nine-spined sticklebacks (Pungitius pungitius). In spite of the strong signal of genetic drift in the study system (average FST = 0.35 in neutral markers), strong footprints of adaptive population differentiation were uncovered ... : Microsatellite data for Fennoscandian Pungitius pungitiusThis data set covers 183 individuals from 4 local populations genotyped for 12 microsatellite loci. The genotypes refer to sequence lengths.KarhunenEtAl_Evolution_genotypes.txtMorphological and behavioral measurements from Pungitius pungitiusThis data set involves 92 individuals from four local populations. The entry for each individual covers data needed for animal-model type analyses (parents, sex, origin of parents), behavioral and morphometric measurements. The behavioral variables involve number of attacks against stimulus conspecific, time to orient and time to 'full out' in seconds and feeding behavior recorded as a binary variable. All morphometric measurements are given in millimetres. SL refers to standard length.KarhunenEtAl_Evolution_phenotypes.txt ...