Fig. 3: The effect of inversions on gene expression variation.

a The estimation of inversion effects on gene expression is illustrated using data from an exocyst complex protein gene (MgIM767.06G148700). This gene resides within inv_25 which is carried by five alternative lines (155, 444, 909, 1034, and 1192) which makes five of the F2 populations segregating. b The linear regression of gene expression level onto alternative allele count is reported for each of the nine F₂ populations. Expression levels have been standardized to a mean value of 1 within each population. c The average pairwise distance is reported for four categories. The p-values refer to comparisons between versus within cross type (left) and within-Ancestral versus within-Derived (right). 932 genes assayed for between/within cross types, 872 for within-Ancestral, and 168 for within-Derived. The 95% confidence bands are from averages across genes, while the test p-values were obtained by permutation. d The results of permutation for between cross-type (orange) and within cross-type (blue) reveal the observed pairwise distances (indicated by arrows) to be well outside the null distribution. Source data are provided as a Source Data file.