Fig. 3

The distribution of markers based on the IGTV margin (grey box: the IGTV margin in different directions, blue dot: in the IGTV margin, red dot: outside the IGTV marker)
The distribution of markers based on the IGTV margin (grey box: the IGTV margin in different directions, blue dot: in the IGTV margin, red dot: outside the IGTV marker)