Fluctuating Asymmetry in Hybrids of Sibling Species, Drosophila ananassae and Drosophila pallidosa, Is Trait and Sex Specific
Due to inconsistent results of the empirical studies, the relationship between fluctuating asymmetry (FA, a measure of developmental stability) and interspecific hybridization has been the subject of intense debates. In the present study, we have assessed the impact of interspecific hybridization be...
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Published in | The Journal of heredity Vol. 100; no. 2; pp. 181 - 191 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
United States
The American Genetic Association
01.03.2009
Oxford University Press Oxford Publishing Limited (England) |
Subjects | |
Online Access | Get full text |
ISSN | 0022-1503 1465-7333 1471-8505 1465-7333 |
DOI | 10.1093/jhered/esn094 |
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Summary: | Due to inconsistent results of the empirical studies, the relationship between fluctuating asymmetry (FA, a measure of developmental stability) and interspecific hybridization has been the subject of intense debates. In the present study, we have assessed the impact of interspecific hybridization between 2 sibling species of Drosophila: Drosophila ananassae and Drosophila pallidosa on the levels of FA over 3 generations. Trait size of different morphological traits, namely, sternopleural bristle number, wing length (WL), wing to thorax (W/T) ratio, sex comb tooth number (SCTN), and ovariole number differed significantly among parental species and their hybrids of different generations in both the sexes. However, the levels of FA of different morphological traits were similar in parental species and their hybrids of different generations in males (except SCTN) and in females (except for WL and W/T ratio). These results are interpreted in terms of developmental stability as a function of a balance between the level of heterozygosity and the disruption of coadapted gene complexes. |
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Bibliography: | Corresponding Editor: James Thompson istex:BB47CCB8EE0F0BFC3440FA9F67FE19C3A3EEABA8 ark:/67375/HXZ-B8D8ZHQ5-H ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 14 ObjectType-Article-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0022-1503 1465-7333 1471-8505 1465-7333 |
DOI: | 10.1093/jhered/esn094 |