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ID 48959
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Abstract
Fluctuating asymmetry (FA), defined as random deviation from perfect symmetry, has been used to assay the inability of individuals to buffer their developmental processes from environmental perturbations (i.e., developmental instability). In this study, we aimed to characterize the natural genetic variation in FA of wing shape in Drosophila melanogaster, collected from across the Japanese archipelago. We quantified wing shapes at whole wing and partial wing component levels and evaluated their mean and FA. We also estimated the heritability of the mean and FA of these traits. We found significant natural genetic variation in all the mean wing traits and in FA of one of the partial wing components. Heritability estimates for mean wing shapes were significant in two and four out of five wing traits in males and females, respectively. On the contrary, heritability estimates for FA were low and not significant. This is a novel study of natural genetic variation in FA of wing shape. Our findings suggest that partial wing components behave as distinct units of selection for FA, and local adaptation of the mechanisms to stabilize developmental processes occur in nature.
Keywords
Animal model
Geometric morphometrics
Heritability
Natural genetic variation
Wing shape
Published Date
2012-01-01
Publication Title
Ecological Research
Volume
volume27
Issue
issue1
Publisher
Springer Japan
Start Page
133
End Page
143
ISSN
0912-3814
Content Type
Journal Article
Project
Research Core for Interdisciplinary Sciences
Official Url
http://link.springer.com/article/10.1007/s11284-011-0880-x/fulltext.html
language
英語
Copyright Holders
© The Ecological Society of Japan 2011
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author
Refereed
True
DOI
Web of Science KeyUT