The genetic distances between group 1 (P. bocourti), group 3 (P. krempfi) and group 4 (P. larnaudii) are small, from 0.09285 to 0.09531
they all belong to the genus Pangasius, subgenus Pangasius and are grouped into the group Pangasius. The genetic distance between group 2 (P. hypophthalmus) and group Pangasius is as large as 0.11982. Group 2 belongs to the genus Pangasius, subgenus Pangasianodon and is named group Pangasianodon. The genetic diversity of group 1 was highest with Hd = 0.700, followed by group 3 and group 4 with Hd = 0.500, and group 2 was the lowest with Hd = 0.400