Fig. 4

The total base count and read pairs of 48 short-read datasets. The x-axis and y-axis represent the total base count and the read pairs (read amount) of 48 short-read datasets from three poplar clones (I45, I69 and NL895), respectively. The horizontal and vertical green dashed lines represent the equations ‘y = 2 × 10⁸’ and ‘x =1 × 10⁶’, respectively