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. 2017 Sep 28;22(10):1630.
doi: 10.3390/molecules22101630.

Predicting the Global Potential Distribution of Four Endangered Panax Species in Middle-and Low-Latitude Regions of China by the Geographic Information System for Global Medicinal Plants (GMPGIS)

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Predicting the Global Potential Distribution of Four Endangered Panax Species in Middle-and Low-Latitude Regions of China by the Geographic Information System for Global Medicinal Plants (GMPGIS)

Zhixia Du et al. Molecules. .

Abstract

Global biodiversity is strongly influenced by the decrease in endangered biological species. Predicting the distribution of endangered medicinal plants is necessary for resource conservation. A spatial distribution model-geographic information system for global medicinal plants (GMPGIS)-is used to predict the global potential suitable distribution of four endangered Panax species, including Panax japonicas (T. Nees) C. A. Meyer and Panax japonicas var. major (Burkill) C. Y. Wu & K. M. Feng distributed in low- and middle-latitude, Panax zingiberensis C. Y. Wu & K. M. Feng and Panax stipuleanatus C. T. Tsai & K. M. Feng in low-latitude regions of China based on seven bioclimatic variables and 600 occurrence points. Results indicate that areas of P. japonicus and P. japonicusvar. major are 266.29 × 10⁵ and 77.5 × 10⁵ km², respectively, which are mainly distributed in China and America. By contrast, the areas of P. zingiberensis and P. stipuleanatus are 5.09 × 10⁵ and 2.05 × 10⁵ km², respectively, which are mainly distributed in Brazil and China. P. japonicus has the widest distribution among the four species. The data also indicate that the mean temperature of coldest quarter is the most critical factor. This scientific prediction can be used as reference for resource conservation of endangered plants and as a guide to search for endangered species in previously unknown areas.

Keywords: Panax; geographic information system for global medicinal plants (GMPGIS); global potential distribution.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Global spatial distribution of sample points for four endangered Panax species, (blue) P. japonicas; (red) P. japonicus var. major; (yellow) P. zingiberensis; (green) P. stipuleanatus.
Figure 2
Figure 2
Boxplot of ecological factor of four endangered Panax species by MATLAB, ecological factor scope of P. japonicus and P. japonicus var. major are much broader(1: P. japonicas; 2: P. japonicus var. major; 3: P. zingiberensis; 4: P. stipuleanatus).
Figure 3
Figure 3
Spatial distribution map of potential suitable distribution for P. japonicus by GMPGIS. (A) Global potential distribution; (B) Global rank of the potential distribution area; (C) Chinese potential distribution.
Figure 4
Figure 4
Spatial distribution map of potential suitable distribution for P. japonicus var. major by GMPGIS. (A) Global potential distribution; (B) Global rank of the potential distribution area; (C) Chinese potential distribution.
Figure 5
Figure 5
Spatial distribution map of potential suitable distribution for P. zingiberensis by GMPGIS. (A) Global potential distribution; (B) Global rank of the potential distribution area; (C) Chinese potential distribution.
Figure 6
Figure 6
Spatial distribution map of potential suitable distribution for P. stipuleanatus by GMPGIS. (A) Global potential distribution; (B) Global rank of the potential distribution area; (C) Chinese potential distribution.
Figure 7
Figure 7
Spatial distribution map of potential distribution for four endangered Panax species based on MaxEnt. (A: P. japonicas; B: P. japonicus var. major; C: P. zingiberensis; D: P. stipuleanatus).
Figure 8
Figure 8
Picture of plant and materials (A) (1: P. japonicus, 2, 5: P. japonicus var. major, 3: P. zingiberensis, 4: P. stipuleanatus), and flow-chart of potential distribution similarity analysis (B).

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