Skip to Main Content
Isozymes and the genetic resources of forest treesAuthor(s): A. H. D. Brown; G. F. Moran
Source: Gen. Tech. Rep. PSW-GTR-48. Berkeley, CA: Pacific Southwest Forest and Range Exp. Stn, Forest Service, U.S. Department of Agriculture: p. 1-10
Publication Series: General Technical Report (GTR)
Station: Pacific Southwest Research Station
PDF: View PDF (415 KB)
DescriptionGenetic data are an essential prerequisite for analysing the genetic structure of tree populations. The isozyme technique is the best currently available method for obtaining such data. Despite several shortcomings, isozyme data directly evaluate the genetic resources of forest trees, and can thus be used to monitor and manipulate these resources. For example, preliminary isozyme data indicate that domestication of cultivated species has generally reduced variation within populations. Geographic differences among natural populations are less evident in trees than in herbaceous plants, but need to be considered in sampling and conservation strategies. In dealing with remnant population size (Nr) and distribution, management programs should recognize that the half-life of heterozygosity is about 1.4 Nr generations, whereas the number of trees required to retain half the current alleles after a bottleneck is about the square root of the original population size.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationBrown, A. H. D.; Moran, G. F. 1981. Isozymes and the genetic resources of forest trees. Gen. Tech. Rep. PSW-GTR-48. Berkeley, CA: Pacific Southwest Forest and Range Exp. Stn, Forest Service, U.S. Department of Agriculture: p. 1-10
- Levels of genetic variation in trees: influence of life history characteristics
- Communicating the role of genetics in management
- Allozyme and microsatellite data reveal small clone size and high genetic diversity in aspen in the southern Cascade Mountains
XML: View XML