10.1371/journal.pgen.1008707.g005 Tuomas Hämälä Tuomas Hämälä Amanda J. Gorton Amanda J. Gorton David A. Moeller David A. Moeller Peter Tiffin Peter Tiffin Simulated population fitness under different levels of pleiotropy, i.e. the number of phenotypes controlled by a single QTL (horizontal axis). Public Library of Science 2020 pleiotropic adaptation populations face novel phenotype ragweed allele optima gene networks artemisiifolia connectivity trait evolution states Pleiotropy putatively adaptive loci human-mediated habitat change use genotype-expression mapping Ambrosia North American range pleiotropy 2020-03-25 17:33:56 Figure https://plos.figshare.com/articles/figure/Simulated_population_fitness_under_different_levels_of_pleiotropy_i_e_the_number_of_phenotypes_controlled_by_a_single_QTL_horizontal_axis_/12032055 <p>Phenotypes start from an initial value 0 and selection acts to move them towards three different optima. Shown are medians and interquartile ranges (IQR) from 300 simulation. The fitness estimates were normalized in relation to the non-pleiotropic class (median = 0, IQR = 1).</p>