Figure 2 Phylogenetic trees and networks showing genetic relationships among observed ITS ribotypes in (a ) 2016 and (c ) 2022 and trn L-F and ycf 1b chlorotypes in (b ) 2016 and (d ) 2022 of Primulina heterotrichapopulations. The relative sizes of the circles in the network are proportional to the haplotype frequencies, and missing haplotypes are represented by a small red spot. The frames indicate different clades.