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In this work the authors investigated the patterns of intraspecific variation and …

Biology Articles » Evolutionary Biology » Evolution of male genitalia: environmental and genetic factors affect genital morphology in two Drosophila sibling species and their hybrids » Tables

Tables
- Evolution of male genitalia: environmental and genetic factors affect genital morphology in two Drosophila sibling species and their hybrids

Table 1
Shape variation.

Intraespecific analyses
 Interespecific analysis

D. koepferae
 D. buzzatii
 Parental species + hybrids
Shape variables
 Eigenvalue
 Proportion(%)
 Eigenvalue
 Proportion(%)
 Eigenvalue
 Proportion(%)
PC1
 1.94E-03
 36.6
 2.63E-03
 30.3
 6.26E-03
 50.4
PC2
 8.95E-04
 16.8
 1.57E-03
 18.1
 2.02E-03
 16.3
PC3
 4.85E-04
 9.1
 1.21E-03
 13.9
 1.05E-03
 8.4
PC4
 3.70E-04
 7
 8.16E-04
 9.4
 5.57E-04
 4.5
PC5
 2.50E-04
 4.7
 5.22E-04
 6
 4.97E-04
 4
Percent of genital morphological variance explained by the first 5 principal components (PCs) in intraspecific and global (Dorosphila buzzattii + D. Koepferace + hybrids) analyses.

 

Table 2
Sources of variation of male genitalia in Drosophila buzzatii and D. koepferae.
Sources of variation
 df
 Size
 Shape



PC1
 PC2
 PC3
 PC4
 PC5
a)






Species (Sp)
 1
 1812.95*
 3519.85*
 3.39
 0.15
 0.11
 5.07*
Cactus
 1
 6.56*
 0.04
 0.95
 1.47
 0.39
 2.62
Species × Cactus
 1
 0.77
 0.53
 0.02
 0.99
 1.42
 1.18
Line(Sp)
 28
 2.05*
 5.91*
 2.36*
 3.66*
 3.08*
 1.75
Line(Sp)*Cactus
 28
 1.99*
 1.33
 1.72*
 0.99
 1.88*
 1.74*
Error
 487













b)






Drosophila koepferae






Line
 14
 4.71*
 6.99*
 4.35*
 3.97*
 3.29*
 2.63*
Cactus
 1
 4.02
 0.62
 0.24
 0.5
 0.49
 0.23
Line × Cactus
 14
 1.12
 0.89
 1.1
 2.00*
 1.41
 1.35
Error
 264













Drosophila buzzatii






Line
 14
 1.39
 3.25*
 3.71*
 4.08*
 6.87*
 3.65*
Cactus
 1
 3.31
 0.07
 1.67
 2.71
 1.88
 0.04
Line × Cactus
 14
 2.47*
 2.18*
 1.1
 1.06
 1.25
 1.33
Error
 224





F values of the ANOVAs and MANOVAs for aedeagus size and shape respectively in interspecific (a) and intraspecific (b) analyses. * p
Table 3
Within organ allometry. Correlation coefficients between size and each one of the principal components (PC) scores accounting for shape variation in the aedeagus of D. koepferae, D. buzzatii and F1 hybrids.
Shape variables
 Genital size

D. koepferae
 D. buzzatii
 F1 Hybrids
PC1
 -0.08
 -0.17*
 0.61*
PC2
 -0.07
 0.45*
 -0.21
PC3
 -0.03
 0.24*
 0.1
PC4
 0.02
 0.16*
 0.14
PC5
 0.03
 0.01
 -0.02
Total allometric shape variance (%)
 0.0
 16.6
 30.7
Allometric shape variance was calculated as the sum of partial allometric variance of each PC significantly correlated with size. * p
Table 4
Sources of variation of male genitalia interspecific crosses.
Sources of variation
 Crosses

3512
 4855
 8832
 4853
Size








df
 F
 df
 F
 df
 F
 df
 F
Genotype
 2
 359.96**
 2
 204.17**
 2
 609.06**
 2
 176.73**
Cactus
 1
 0.33
 1
 0.41
-
-
Genotype × Cactus
 2
 0.14
 2
 4.49*
-
-
Error
 38
69
56
34









Shape








df
 λ
 df
 λ
 df
 λ
 df
 λ
Genotype
 20
 0.015**
 20
 0.095**
 20
 0.015**
 20
 0.014**
Cactus
 10
 0.865
 10
 0.914
-
-
Genotype × Cactus
 20
 0.635
 20
 0.672
-
-
F values of the ANOVAs and Wilk's lambda of MANOVAs for aedeagus size and shape respectively. *p p

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