Safety Assessment of Transgenic Organisms, Volume 3

OECD Consensus Documents

image of Safety Assessment of Transgenic Organisms, Volume 3

The books on “Safety Assessment of Transgenic Organisms” constitute a compilation of the OECD Biosafety Consensus Documents. When published, Volume 1 and 2 contained the documents issued before 2006; Volume 3 and 4 are a continuation of the compilation up to 2010.

The OECD Biosafety Consensus Documents identify elements of scientific information used in the environmental safety and risk assessment of transgenic organisms which are common to OECD member countries and some non members associated with the work. This is intended to encourage information sharing, promote harmonised practices, and prevent duplication of effort among countries.

These books offer ready access to those consensus documents which have been issued on the website thus far. As such, it should be of value to applicants for commercial uses of transgenic organisms (crops, trees, microorganisms), to regulators and risk assessors in national authorities, as well as the wider scientific community.

More information on the OECD's work related to the biosafety of transgenic organisms is found at BioTrack Online (http://www.oecd.org/biotrack).


Section 4 - Douglas-Fir (Pseudotsuga menziesii)

Pseudotsuga menziesii (Mirbel) Franco is generally called Douglas-fir (so spelled to maintain its distinction from true firs, the genus Abies). Pseudotsuga Carrière is in the kingdom Plantae, division Pinophyta (traditionally Coniferophyta), class Pinopsida, order Pinales (conifers), and family Pinaceae. The genus Pseudotsuga is most closely related to Larix (larches), as indicated in particular by cone morphology and nuclear, mitochondrial and chloroplast DNA phylogenies (Silen 1978; Wang et al. 2000); both genera also have non-saccate pollen (Owens et al. 1981, 1994). Based on a molecular clock analysis, Larix and Pseudotsuga are estimated to have diverged more than 65 million years ago in the Late Cretaceous to Paleocene (Wang et al. 2000). The earliest known fossil of Pseudotsuga dates from 32 Mya in the Early Oligocene (Schorn and Thompson 1998).


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