iForest - Biogeosciences and Forestry


A comparative fluctuating asymmetry study between two walnut (Juglans regia L.) populations may contribute as an early signal for bio-monitoring

YAI Kourmpetis (1), FA Aravanopoulos (2)   

iForest - Biogeosciences and Forestry, Volume 3, Issue 6, Pages 150-152 (2010)
doi: https://doi.org/10.3832/ifor0552-003
Published: Nov 15, 2010 - Copyright © 2010 SISEF

Research Articles

Developmental stability, the ability of an individual to eliminate environmental disturbances while expressing a heritable phenotypic trait, was compared in two walnut (Juglans regia L.) populations, a natural and an artificial. Bilateral leaf morphometrics were used to estimate fluctuating asymmetry which refers to random deviation from perfect symmetry of bilateral traits resulting from extrinsic and intrinsic perturbations not buffered during development. Fluctuating asymmetry was used as a proxy of developmental stability. We analyzed our data from a Bayesian perspective showing that developmental stability levels are decreased in the natural population. Our results indicate that an attention may be directed towards the conservation of the natural walnut resources of the area. Fluctuating asymmetry as an indicator of developmental stability may contribute especially in the framework of comparative studies as a population biomonitoring tool.


Signal asymmetry, Directional asymmetry, Developmental stability, Bio-monitoring, Conservation

Authors’ address

YAI Kourmpetis
Biometris, Wageningen University and Research Center, Wageningen (The Netherlands)
FA Aravanopoulos
Laboratory of Forest Genetics and Tree Breeding, Faculty of Forestry and Natural Environment, Aristotle University of Thessaloniki, Thessaloniki (Greece).

Corresponding author

FA Aravanopoulos


Kourmpetis YAI, Aravanopoulos FA (2010). A comparative fluctuating asymmetry study between two walnut (Juglans regia L.) populations may contribute as an early signal for bio-monitoring. iForest 3: 150-152. - doi: 10.3832/ifor0552-003

Paper history

Received: Jul 10, 2010
Accepted: Sep 22, 2010

First online: Nov 15, 2010
Publication Date: Nov 15, 2010
Publication Time: 1.80 months

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