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Table 2 Analyses of molecular variance (AMOVA) in cave and surface populations for 26 microsatellite loci

From: Gene flow and population structure in the Mexican blind cavefish complex (Astyanax mexicanus)

Structure tested

SS

VC

%VAR

Fstat

P

TWO GROUPS: O1-O8 vs. S1-S4 + N1-N3

     

Among groups

372.71

0.43

4.52

0.07

< 0.000001

Among populations within groups

1288.50

1.51

15.76

0.16

< 0.000001

Among individuals within populations

3743.17

0.58

6.02

0.04

< 0.000001

Within individuals

3373.50

7.06

73.70

0.26

< 0.000001

THREE GROUPS: O1-O8 vs . N1-N3 vs . S1-S4

     

Among groups

560.21

0.45

4.73

0.05

< 0.000001

Among populations within groups

1100.99

1.41

1.41

0.16

< 0.000001

Among individuals within populations

3743.17

0.58

6.08

0.08

< 0.000001

Within individuals

3373.50

7.06

74.31

0.26

< 0.000001

FOUR GROUPS: O1-O7 vs . N1-N3 vs . S1-S4 vs . O8

     

Among groups

575.99

0.67

6.95

0.06

< 0.000001

Among populations within groups

1085.21

1.32

13.75

0.14

< 0.000001

Among individuals within populations

3743.17

0.58

5.99

0.07

< 0.000001

Within individuals

3373.50

7.06

73.30

0.26

< 0.000001

FIVE GROUPS: O1-O7 vs . N1-N2 vs . S1-S4 vs . N3 vs . O8

     

Among groups

1034.04

0.86

9.05

0.13

< 0.000001

Among populations within groups

539.32

1.20

12.64

0.09

< 0.000001

Among individuals within populations

3191.16

0.59

6.19

0.07

< 0.000001

Within individuals

2852.00

6.83

72.11

0.27

< 0.000001

FIVE GROUPS: O2-O8 vs . N1-N2 vs . S1-S4 vs . N3 vs . O8 vs . O1

     

Among groups

1198.68

1.18

12.42

0.12

< 0.000001

Among populations within groups

374.68

0.89

9.39

0.1

< 0.000001

Among individuals within populations

3191.16

0.59

6.18

0.07

< 0.000001

Within individuals

2852.00

6.83

72.00

0.28

< 0.000001

  1. SS - Sum of squares; VC - Variance components; % VAR - Percentage of variation; Fstat = F-statistics; P = P values.