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Ma Xiao-Ying, Wei Wei, Shen Lin, Wang Ke, Yu Jing. Genetic diversity and differentiation between coastal and inland populations of mosses: a case study of Bryum argenteum Hedw.[J]. Plant Science Journal, 2019, 37(3): 295-302. DOI: 10.11913/PSJ.2095-0837.2019.30295
Citation: Ma Xiao-Ying, Wei Wei, Shen Lin, Wang Ke, Yu Jing. Genetic diversity and differentiation between coastal and inland populations of mosses: a case study of Bryum argenteum Hedw.[J]. Plant Science Journal, 2019, 37(3): 295-302. DOI: 10.11913/PSJ.2095-0837.2019.30295

Genetic diversity and differentiation between coastal and inland populations of mosses: a case study of Bryum argenteum Hedw.

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This work was supported by grants from the National Natural Science Foundation of China (31570208), Shanghai Engineering Research Centre of Plant Germplasm Resources (17DZ2252700), and Prospective Project of Shanghai Normal University (DYL201503).

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  • Received Date: October 10, 2018
  • Revised Date: November 06, 2018
  • Available Online: October 31, 2022
  • Published Date: June 27, 2019
  • The genetic diversity of Bryum argenteum Hedw. was studied based on 252 samples from 11 inland and 32 island populations using Inter-Simple Sequence Repeat (ISSR) markers. Significant genetic differentiation between island and inland populations was detected, with a higher degree of differentiation found in the island populations (Gst=0.453) compared with the continental populations (Gst=0.387). There was a significant correlation between genetic differentiation of the tested samples and their geographical origin (r=0.478, n=175, P<0.001), indicating a significant effect of geographical isolation on genetic differentiation among the populations of mosses. Genetic variation among the island populations of B. argenteum was low, varying from 29.4% to 29.7% among populations. 43 populations were divided into 10 groups based on the ISSR results using cluster analysis. Both geographic origin and environmental heterogeneity exerted marked effects on the genetic diversity of B. argenteum. The spread of propagules was likely impacted by watershed isolation to a certain degree.
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