Principal Component Analysis (PCA), based on genetic distance using SNPs data A all 57 samples representing 22 species B 37 samples representing 12 species, including Populus gonggaensis and its most closely-related species C plotted by adding PC3 (Z-axis) to B. Points inside red circle represents P. lasiocarpa, while those inside blue circle represent P. cathayana and P. koreana.

 
 
  Part of: Du W, Wang Y, Xie D, Li E, Bai Y, Shang C, Zhang Z (2024) Phylogenomics reveal Populus gonggaensis as a hybrid between P. lasiocarpa and P. cathayana (Salicaceae). PhytoKeys 237: 161-177. https://doi.org/10.3897/phytokeys.237.103012