You are here: Home
/ Publication Information
Title: Genetic analysis of growth curves for a woody perennial species, Pinus taeda L.
Author: Gwaze, D.P.; Bridgwater, F.E.; Williams, C.G.;
Source: Theor Appl Genet (2002) 105:526-531
Publication Series: Miscellaneous Publication
Description: Inheritance of growth curves is critical for understanding evolutionary change and formulating efficient breeding plans, yet has received limited attention. Growth curves, like other characters that change in concert with development, often have higher heritability than age-specific traits. This study compared genetic parameters of height-growth curves with those of age-specific heights for a conifer, Pinus taeda L. Growth curves were fitted with: (1) a linear regression model, and (2) a non-linear model based on Richards' function using two sources of height data: two six-parent diallel tests assessed at age 2 to 10 years and two tests from a nestedmating design with 222 parents assessed at 1 to 25 years. Additive genetic control of growth-curve parameters was moderate (h² = 0.06 to 0.26) and slightly lower than that for age-specific heights. Additive variance exceeded dominance variance for rate and shape parameters, but not for the asymptote. Genetic correlations among growth-curve parameters were high. Early selection on height was as efficient as selection on growth-curve parameters.
- 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.
- 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.)
XML: View XML
Gwaze, D.P.; Bridgwater, F.E.; Williams, C.G. 2002. Genetic analysis of growth curves for a woody perennial species, Pinus taeda L. Theor Appl Genet (2002) 105:526-531
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility