Skip Navigation



Journal of Heredity Advance Access published online on October 30, 2008
Journal of Heredity, doi:10.1093/jhered/esn094
This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow Supplementary Material
Right arrow All Versions of this Article:
100/2/181    most recent
esn094v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Vishalakshi, C.
Right arrow Articles by Singh, B. N.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Vishalakshi, C.
Right arrow Articles by Singh, B. N.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The American Genetic Association. 2008. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org.

Fluctuating Asymmetry in Hybrids of Sibling Species, Drosophila ananassae and Drosophila pallidosa, Is Trait and Sex Specific

Chavali Vishalakshi, and Bashisth N. Singh

From the Genetics Laboratory, Department of Zoology, Banaras Hindu University, Varanasi 221 005, India

Address correspondence to B. N. Singh at the address above, or e-mail: bnsingh{at}bhu.ac.in.

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.

Key Words: developmental instability • Drosophila ananassae • Drosophila pallidosa • interspecific hybrids • morphological traits

Corresponding Editor: James Thompson

Received May 12, 2008
Revised September 30, 2008
Accepted September 30, 2008


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.