Figure 2

Relative expression obtained through qRT-PCR for the transgenes cry1Ab and nptII in transgenic Populus lines. The data are shown relative to the endogenous actin gene. Boxes: interquartile range, or the middle 50% of observations; dotted line: median gene expression; whiskers: minimum and maximum observations. Data are expressed as mean ± 95% confidence limit after 10000 permutations and have a p = 0.000 – 0.002.