Differential expression of splicing factor genes in different tissues and genotypes. Splicing factor average expression value (FPKM) grouping the samples according to genotype (A) or tissue (B). Boxes on panel A shows the expression levels of the variants that were significantly expressed between genotype. The number above each box represents the number of the isoform. Stars over the bar plots indicate the comparisons that resulted significantly different (t-test with a p-value < 0.05 after FDR correction).