Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (614 KB bytes)

Title: Founder effects and the genetic structure of coulter pine

Author: Ledig, F. Thomas;

Date: 2000

Source: The American Genetic Association 91:307-315

Publication Series: Miscellaneous Publication

Description: Mean expected heterozygosity at 33 isozyme loci decreased with latitude from 0.193 near the southern extreme of Coulter pine's range to 0.107 at its northern extreme. This decrease was paralleled by a loss of alleles north of the Peninsular Ranges of southern California. Fiftenn alleles dropped out along the roughly linear range, at points coincident with large gaps in the species' disturbution. The pattern may reflect a cascading series of founder events as Coulter pine nvaded the Transverse Ranges and the South Coast Ranges from Pleistoncen refugia. Alleles were not replaced following colonization, probably because migration, Nm, among populations is only 0.74-1.27, depending on estimator, the lowest values reported in any pines. Wright's (FST) indicated that 16.5% of teh total genic diversity is among populations. The fixation index, (FIS) of 0.072 indicated only a moderate excess of homozygotes.

Publication Notes:

  • 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.

XML: View XML

Citation:


Ledig, F. Thomas 2000. Founder effects and the genetic structure of coulter pine. The American Genetic Association 91:307-315

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.