Ecological Archives E089-007-A2

Marc T. J. Johnson. 2008. Bottom-up effects of plant genotype on aphids, ants, and predators. Ecology 89:145–154.

Appendix B. Descriptive statistics for the effects of plant genotype on plant traits.

TABLE B1. Descriptive statistics for the effects of plant genotype on plant traits.Included are the range of breed values for each trait, variance explained by plant genotype (VC), the coefficient of genetic variation (CVg), broad-sense heritability (H2), and thechisqrand P value from a log-likelihood ratio test for the effect of plant genotype. I measured traits from plants that received zero aphids. Significant effects (P < 0.05) are in bold.


Plant trait

Range

VC

CVg

H2

 

chisqr

P


Leaf water content (%)

75.4 – 81.2

3.15

2.18

0.1

 

9.4

0.001

Specific leaf area

240.1 – 283.4

265.39

4.41

0.08

 

4.5

0.02

Leaf carbon (%)

43.9 – 44.5

0.11

0.76

0.21

 

1.4

0.12

Leaf nitrogen (%)

2.4 – 2.6

0.02

4.96

0.14

 

3.8

0.03

Peroxidase

2.0 – 3.4

0.23

22.65

0.07

 

6.4

0.006

Trichome density

163.5 – 364.9

3148.88

23.65

0.54

 

30.9

<0.001

Plant dry biomass

5.3 – 10.0

2.17

18.03

0.2

 

6.2

0.006




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