Cold Resistance in Drosophila americana
Author Information
Author(s): Reis Micael, Vieira Cristina P., Morales-Hojas Ramiro, Aguiar Bruno, Rocha Hélder, Schlötterer Christian, Vieira Jorge
Primary Institution: IBMC-Instituto de Biologia Celular e Molecular, University of Porto, Porto, Portugal
Hypothesis
Is the variation in candidate genes responsible for short term cold resistance in distantly related Drosophila species?
Conclusion
The study shows significant differences in the molecular basis of cold resistance among distantly related Drosophila species.
Supporting Evidence
- In D. americana, the T variant at position -58 is present at highest frequency in populations experiencing the lowest average temperatures.
- Chill-coma recovery times are negatively correlated with abdominal size.
- Significant associations were found between PEST size genotype and chill-coma recovery times.
Takeaway
This study looks at how different types of fruit flies handle cold temperatures and finds that they do it in different ways.
Methodology
The study involved F2 association experiments, phenotyping for chill-coma recovery time, and genotyping for candidate genes.
Limitations
The study may not capture all complexities of cold response and relies on specific strains of Drosophila.
Participant Demographics
Drosophila americana strains collected from various locations in the USA.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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