Figure 1

Overview of gene classification into expression categories based on mapped reads number. Genes were grouped into four categories: ‘Very highly expressed’ (read count > = 1000), ‘Highly expressed’ (1000 > read count > = 100), ‘Medium expressed’ (100 > read count > = 15) and ‘Low expressed’ (15 > read count > 5); male gametes (purple circle) and female gametes (blue circle).