Environmental Stress-Dependent Effects of Deletions Encompassing Hsp70Ba on Canalization and Quantitative Trait Asymmetry in Drosophila melanogaster
2011

Effects of Hsp70Ba on Wing Traits in Drosophila

publication Evidence: moderate

Author Information

Author(s): Takahashi Kazuo H., Daborn Phillip J., Hoffmann Ary A., Takano-Shimizu Toshiyuki

Primary Institution: National Institute of Genetics, Japan

Hypothesis

Hsp70Ba may influence the expression of wing abnormalities in Drosophila melanogaster and affect variability in quantitative characters and developmental instability.

Conclusion

The absence of expression of Hsp70Ba increases variability in some morphological traits, suggesting it may buffer against environmental perturbations.

Supporting Evidence

  • The expression level of Hsp70Ba in the deletion heterozygote was significantly higher than in control homozygotes.
  • The Hsp70Ba304/Hsp70Ba304 genotype significantly increased among-individual variation in bristle number and wing size.
  • Temperature had a large effect on mean trait values in general.

Takeaway

This study looked at a gene called Hsp70Ba in fruit flies and found that when this gene is not working, the flies show more differences in their wing sizes and shapes.

Methodology

The study used genetic deletions of Hsp70Ba in Drosophila to assess its effects on morphological traits under various environmental conditions.

Limitations

The study's findings may be influenced by genetic background effects and the specific environmental conditions tested.

Statistical Information

P-Value

0.0014

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0017295

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