Research Article

Genetic diversity and taxonomic status of Pinus tabulaeformis f. shekanensis revealed by ISSR markers

Published: February 06, 2015
Genet. Mol. Res. 14 (1) : 1034-1043 DOI: https://doi.org/10.4238/2015.February.6.7
Cite this Article:
(2015). Genetic diversity and taxonomic status of Pinus tabulaeformis f. shekanensis revealed by ISSR markers. Genet. Mol. Res. 14(1): gmr4375. https://doi.org/10.4238/2015.February.6.7
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Abstract

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. Inter-simple sequence repeat marker data revealed higher genetic diversity in the P. tabulaeformis f. shekanensis population than in the other populations. Population genetic analysis (neighbor-joining cluster analysis, principal coordinate analysis, and structure clustering) revealed that P. tabulaeformis f. shekanensis and P. tabulaeformis are likely conspecific (the former may be a variety of the latter). Strategies are also proposed for the conservation of P. tabulaeformis f. shekanensis.

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. Inter-simple sequence repeat marker data revealed higher genetic diversity in the P. tabulaeformis f. shekanensis population than in the other populations. Population genetic analysis (neighbor-joining cluster analysis, principal coordinate analysis, and structure clustering) revealed that P. tabulaeformis f. shekanensis and P. tabulaeformis are likely conspecific (the former may be a variety of the latter). Strategies are also proposed for the conservation of P. tabulaeformis f. shekanensis.

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