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Heritability of Directional Asymmetry in Drosophila melanogaster
Joint Authors
Houle, David
Carter, Ashley J. R.
Osborne, Elizabeth
Source
International Journal of Evolutionary Biology
Issue
Vol. 2009, Issue 2009 (31 Dec. 2009), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2009-09-13
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Directional asymmetry (DA), the consistent difference between a pair of morphological structures in which the same side is always larger than the other, presents an evolutionary mystery.
Although many paired traits show DA, genetic variation for DA has not been unambiguously demonstrated.
Artificial selection is a powerful technique for uncovering selectable genetic variation; we review and critique the limited number of previous studies that have been performed to select on DA and present the results of a novel artificial selection experiment on the DA of posterior crossvein location in Drosophila wings.
Fifteen generations of selection in two genetically distinct lines were performed and none of the lines showed a significant response to selection.
Our results therefore support and reconfirm previous findings; despite apparent natural variation and evolution of DA in nature, DA remains a paradoxical trait that does not respond to artificial selection.
American Psychological Association (APA)
Carter, Ashley J. R.& Osborne, Elizabeth& Houle, David. 2009. Heritability of Directional Asymmetry in Drosophila melanogaster. International Journal of Evolutionary Biology،Vol. 2009, no. 2009, pp.1-7.
https://search.emarefa.net/detail/BIM-496492
Modern Language Association (MLA)
Carter, Ashley J. R.…[et al.]. Heritability of Directional Asymmetry in Drosophila melanogaster. International Journal of Evolutionary Biology No. 2009 (2009), pp.1-7.
https://search.emarefa.net/detail/BIM-496492
American Medical Association (AMA)
Carter, Ashley J. R.& Osborne, Elizabeth& Houle, David. Heritability of Directional Asymmetry in Drosophila melanogaster. International Journal of Evolutionary Biology. 2009. Vol. 2009, no. 2009, pp.1-7.
https://search.emarefa.net/detail/BIM-496492
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-496492