© 2004 by Institute of Chartered Foresters
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The species and chloroplast DNA haplotype composition of oakwoods in the Forest of Dean planted between 1720 and 1993
A1 Forest Research, Northern Research Station, Roslin, Midlothian, Scotland EH25 9SY
This paper reports the results of a detailed sampling and chloroplast DNA (cpDNA) analysis of oak trees from woods in the Forest of Dean. The survey revealed the presence of four haplotypes in the area, of which three were Iberian (haplotypes 10, 11 and 12) and one was non-Iberian (haplotype 7). Haplotype 7, which is rare elsewhere is Britain, was the most common cpDNA variant in the oldest trees that were sampled and was present in trees that were established as long ago as the 1680s. Although the means whereby haplotype 7 arrived in the area remains an open question, no historic documentation could be found which suggests that this haplotype was introduced to the area by human activity in the relatively recent past. Human mediated planting of oak has been a common occurrence in the area for centuries and there is some evidence to indicate that this activity has disrupted the natural pattern of cpDNA variation in the area. The changes in the cpDNA haplotype composition of the woods over time are discussed in relation to the documented history of the area.
* Corresponding author. E-mail: joan.cottrell{at}forestry.gsi.gov.uk