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Table 1 Hierarchical analysis of molecular variance (AMOVA) of ITS and Tpi sequences and nSSRs from 14 populations of Platycrater arguta var. sinensis (East China) and var. arguta (South Japan)

From: A strong ‘filter’ effect of the East China Sea land bridge for East Asia’s temperate plant species: inferences from molecular phylogeography and ecological niche modelling of Platycrater arguta(Hydrangeaceae)

Data sets/regional grouping of populations

Source of variation

d.f.

Sum of squares

Variance components

Variance explained (%)

F- or R-statistics (P)

ITS

      

var. sinensis (China) vs. var. arguta (Japan)

 

Among groups

1

528.415

13.954

70.28

FCT = 0.703**

 

Among populations within groups

12

312.118

4.912

24.74

FSC = 0.833**

 

Within populations

58

57.315

0.988

4.98

FST = 0.950**

Tpi

      

var. sinensis (China) vs. var. arguta (Japan)

 

Among groups

1

357.190

4.053

66.70

FCT = 0.667**

 

Among populations within groups

12

175.449

0.979

16.11

FSC = 0.484**

 

Within populations

187

195.305

1.044

17.19

FST = 0.828**

nSSRs

      

var. sinensis (China) vs. var. arguta (Japan)

 

Among groups

1

25515.13

96.12

13.52

RCT = 0.135**

 

Among populations within groups

12

7106.99

178.93

25.17

RSC = 0.290**

 

Within populations

530

231038.92

435.92

61.31

RST = 0.390**

  1. d.f., degrees of freedom; grouping of populations: Chinese group (populations C1–C7), Japanese group (populations J1–J7; for population codes see Additional file 1: Table S1, Supporting information); ** P < 0.001.
  2. Estimators for Tpi and ITS were calculated based on the infinite alleles model (F-statistics) and those for nSSRs on the stepwise mutation model (R-statistics).