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Table 3 Results of the analysis of molecular variance (AMOVA).

From: Big mountains but small barriers: Population genetic structure of the Chinese wood frog (Rana chensinensis) in the Tsinling and Daba Mountain region of northern China

A Source of variation Sum of square Variance components Percentage variation P-value
  Among groups 272.039 0.24305 4.25577 < 0.00001
  Among sites within groups 478.176 0.57788 10.11878 < 0.00001
  Within populations 4899.441 4.89003 85.62546 < 0.00001
  Total 5649.656 5.71096   
B Source of variation Sum of square Variance components Percentage variation P-value
  Among groups 147.848 0.16706 2.91249 < 0.00001
  Among sites within groups 266.329 0.39323 6.85549 < 0.00001
  Among individuals within sites 4202.064 5.17572 90.23202 < 0.00001
  Total 4616.242 5.73601   
  1. Sites are separated into three groups under the hypothesis that the Tsinling and Daba Mountains present significant barriers to gene flow. A: analysis includes all 12 sites; group 1 = sites for north of the Tsinling Mountains (1, 2, 3, 4 and 5), and group 2 = sites from south of the Tsinling Mountains (6, 7, 8 and 9), and group 3 = sites from south of the Daba Mountains (10, 11 and 12). B: analysis includes only the 10 central sites; group 1 = sites 1, 2, 3, 4 and 5, group 2 = sites 6, 7, 8 and 9, and group 3 = site 10.