Figure 9

Histogram of frequency of intra-species (black) and inter-species (red) of Orchidaceae based on K2P distance of candidate genes. The X-axis represents the genetic distance, and the Y-axis represents the frequency.
Histogram of frequency of intra-species (black) and inter-species (red) of Orchidaceae based on K2P distance of candidate genes. The X-axis represents the genetic distance, and the Y-axis represents the frequency.