Abstract
Thirteen natural populations from throughout the range of the Chinese pine (Pinus tabulaeformis Carr.) were examined using inter-simple sequence repeat markers to characterize the genetic structure at the species level and to compare the extent and distribution of genetic variation among central, intermediate, and marginal populations. Although the total genetic variation in the Chinese pine was mainly maintained within populations, the genetic differentiation among populations was significant (P < 0.001). The genetic divergence was significantly correlated with geographic distance (P < 0.05). Genetic diversity tended to decrease from the central to intermediate and marginal populations. The marginal populations had significantly lower intrapopulation genetic diversity than central populations (P < 0.05). Cluster analysis based on Nei’s unbiased genetic distances confirmed the difference among four central populations and the rest. Both historical and contemporary factors may have played key roles in shaping the spatial genetic structure of this species.
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Acknowledgments
This research was funded by the National Natural Science Foundation of China (30570284). We thank Dr. Cai-Ping Feng for laboratory assistance; Drs. Jian-Quan Liu, Hong-Jian Li, Jian-Wen Chen, Xiao-Yan Di, Xiang-Yang Hou, and Risu Na, Mr. Tian-Xi Zhang, and Mr. Deng-Hai Zhao for assistance in the field; and Dr. Ming-Shu Cao and anonymous reviewers for valuable comments on the manuscript.
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Wang, MB., Hao, ZZ. Rangewide Genetic Diversity in Natural Populations of Chinese Pine (Pinus tabulaeformis). Biochem Genet 48, 590–602 (2010). https://doi.org/10.1007/s10528-010-9341-4
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DOI: https://doi.org/10.1007/s10528-010-9341-4