You are here: Home
/ Publication Information
Title: Genetic structure, diversity, and inbreeding of eastern white pine under different management conditions
Author: Marquardt, Paula E.; Echt, Craig S.; Epperson, Bryan K.; Pubanz, Dan M.
Source: Canadian Journal of Forest Research. 37: 2652-2662.
Description: Resource sustainability requires a thorough understanding of the influence of forest management programs on the conservation of genetic diversity in tree populations. To observe how differences in forest structure affect the genetic structure of eastern white pine (Pinus strobus L.), we evaluated six eastern white pine sites across the 234000 acre (1 acre =0.4046856 ha) Menominee Indian Reservation in northeastern Wisconsin (45?00?N, 88?45'W). The six sites sampled for nuclear and chloroplast DNA microsatellite markers were of contrasting densities and managed by different management systems: shelterwood, pine release, plantation, and old growth. Three of the sites had natural regeneration, which was also sampled. Mean values of spatial genetic autocorrelation were positive in all mature populations and variable; the strongest spatial structuring of genes occurred in the least disturbed old-growth site (I - E(I) = 0.031). Genetic structuring at the historical old-growth site fit the isolation-by-distance model for a neighborhood size of 130 individuals. Significant inbreeding occurred in five populations, but the seedling or sapling populations as a group (f = 0.088) are significantly less inbred than the local mature populations (f = 0.197). The increase in heterozygosity between generations was attributed to harvesting having reduced the spatial genetic structure of the mature trees.
View or Print this Publication (1.2 MB)
- 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.
- This publication may be available in hard copy. Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
Marquardt, Paula E.; Echt, Craig S.; Epperson, Bryan K.; Pubanz, Dan M. 2007. Genetic structure, diversity, and inbreeding of eastern white pine under different management conditions. Canadian Journal of Forest Research. 37: 2652-2662.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility