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Table 1 Absolute and relative mean differences between treatments in seed capsule production and TPI levels from either untransformed wildtype (WT) or homozygous T3 independently transformed lines of a WT genotype of Nicotiana attenuata which had been transformed with constructs containing the pi gene in an anti-sense orientation (AS –, AS-); absolute and relative mean differences between untransformed plants of the Arizona (A) genotype and plants of the Arizona genotype transformed with constructs containing the full-length pi gene in a sense (S++) orientation, that were either unattacked or attacked by Manduca sexta larvae for 11 days.

From: Fitness benefits of trypsin proteinase inhibitor expression in Nicotiana attenuata are greater than their costs when plants are attacked.

Genotypes

Mean diff. in capsule number

% Mean diff. in capsule number

P

TPI levels

WT

18.04

54.18

<0.0001

High

AS--

40.36

91.35

<0.0001

Low

AS-

23.14

68.14

<0.0001

Intermediate

S++

12.64

35.47

<0.0001

High

A

32.25

65.58

<0.0001

No TPI

  1. P-values are from one-way ANOVAs between treatments.