Comparison of genetic parameters between optimal and marginal populations of oriental sweet gum on adaptive traits
iForest - Biogeosciences and Forestry, Volume 11, Issue 4, Pages 510-516 (2018)
doi: https://doi.org/10.3832/ifor2450-011
Published: Jul 18, 2018 - Copyright © 2018 SISEF
Research Articles
Collection/Special Issue: COST Action FP1202
Strengthening conservation: a key issue for adaptation of marginal/peripheral populations of forest trees to climate change in Europe (MaP-FGR)
Guest Editors: Fulvio Ducci, Kevin Donnelly
Abstract
Genetic parameters of 9 oriental sweetgum (Liquidambar orientalis Mill.) populations were estimated at a common garden test. Open-pollinated seeds were collected from 16-27 families for each population. The common garden test was established in 2009 using a randomized complete block design in 25 blocks with single tree plot, with each block included 223 families. Breast height diameter, height and crown diameter were measured at the age of five. The purpose of study was to compare the genetic parameters of optimal and marginal populations and to assess the findings for genetic conservation. The study revealed significant variability in all traits evaluated. In variance components, variation among populations was three times higher than that of families. Individual heritability estimates for breast height diameter, height and crown diameter pooled across the whole dataset (marginal and optimal populations) were 0.21 ± 0.04, 0.27 ± 0.04 and 0.11 ± 0.03 and additive genetic coefficients of variation were 13.4%, 9.1% and 7.1%, respectively. Individual heritability estimates for breast height diameter, height and crown diameter in marginal and optimal populations were 0.27 ± 0.10, 0.19 ± 0.08 and 019 ± 0.08 and 0.19 ± 0.04, 0.29 ± 0.05 and 0.09 ± 0.03, respectively. Additive genetic coefficients of variation for breast height diameter, height and crown diameter were 16.7%, 8.3% and 10.8% in marginal and 12.8%, 9.1% and 6.2% in optimal populations, respectively. While breast height diameter and crown diameter were more heritable for marginal populations, height was more heritable for optimal populations. These findings are discussed in terms of genetic conservation of oriental sweet gum.
Keywords
Liquidambar orientalis, Genetic Variation, Individual Heritability, Gene Conservation, Climate Change
Authors’ Info
Authors’ address
Karabuk University, Faculty of Forestry, Karabuk (Turkey)
Corresponding author
Paper Info
Citation
Alan M (2018). Comparison of genetic parameters between optimal and marginal populations of oriental sweet gum on adaptive traits. iForest 11: 510-516. - doi: 10.3832/ifor2450-011
Academic Editor
Fulvio Ducci
Paper history
Received: Apr 04, 2017
Accepted: May 15, 2018
First online: Jul 18, 2018
Publication Date: Aug 31, 2018
Publication Time: 2.13 months
Copyright Information
© SISEF - The Italian Society of Silviculture and Forest Ecology 2018
Open Access
This article is distributed under the terms of the Creative Commons Attribution-Non Commercial 4.0 International (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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