Fig. 1From: Negative frequency dependent selection on sympatric mtDNA haplotypes in Drosophila subobscura Observed frequency of mtDNA haplotype II in the four replicate cage populations (a black; b red; c blue; d green) over time. Error bars denote empirical 95% CI [46]. Shown are also predicted values from the best fitting polynomial regression models of haplotype frequencies in the four replicates. Data from [33]Back to article page