Table 1

Repeatabilities of centroid size and landmark positions in the Wabasso population of Drosophila melanogaster. Centroid size is in units of μm. Point locations are in units of mean centroid size/1000.

Percent of within-sex variance


Over repeated

imaging

Over fitting,

models



Trait

Differencea

|♀-♂|

Among fly varianceb

% Fly

% Operator

% Fly







Centroid size

164.83

517.21

96.2

0.5

99.5

Landmark:

1

3.32

52.67

90.2

1.1

***

97.4

2

6.83

22.54

91.1

0.0

96.7

3

4.18

21.78

89.5

0.3

*

96.7

4

11.68

75.15

91.6

0.9

***

96.1

5

3.44

14.32

46.9

2.4

*

72.6

6

3.16

11.71

75.7

3.2

***

94.6

7

4.60

39.82

94.3

0.2

**

97.8

8

2.19

43.83

95.2

0.2

***

98.0

9

1.42

24.57

90.6

0.9

***

96.3

10

2.61

26.74

91.7

0.4

***

97.5

11

2.17

7.67

64.5

1.6

***

78.7

12

4.08

12.39

65.8

0.6

***

71.0

Landmark total

355.17

86.0

0.8

92.7


* P < 0.05; ** P < 0.01; *** P < 0.001. aDistance between mean locations of each point. All differences between the sexes are significant at P < 0.0001. bAll among fly differences are significant at P < 0.0001. Point variances are the sums of variance components in the x and y dimensions.

Houle et al. BMC Evolutionary Biology 2003 3:25   doi:10.1186/1471-2148-3-25

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