Fig. 3From: Differential gene expression patterns during gametophyte development provide insights into sex differentiation in the dioicous kelp Saccharina japonica Boxplot showing the mean expression levels (FPKM) of female- and male-biased genes for immature (A) and mature (B) gametophytes. Asterisks indicate a significant difference (Mann–Whitney U test, p < 0.05)Back to article page