Pinus tabulaeformis f. shekanensis is a rare taxon endemic in the Ziwuling Loess Plateau, of which only one population is known. Inter-simple sequence repeat molecular markers were employed to compare the taxon’s genetic diversity with its 4 nearest wild relatives (P. tabulaeformis, P. tabulaeformis var. mukdensis, P. massoniana, and P. henryi) to assess the taxonomic status of P. tabulaeformis f. shekanensis.
The taxonomic status of Pinus henryi, a rare species endemic to China, is still ambiguous. In this study, the genetic relationships among P. henryi and its congeners (P. tabulaeformis, P. tabulaeformis var. mukdensis, and P. massoniana) were revealed using multiplexed microsatellite markers, including chloroplast microsatellites, nuclear microsatellites, and expressed sequence tag microsatellites. The results refute the hypothesis that P. henryi is a subspecies of P. tabulaeformis or P.