Rapid Evolution of Spermathecal Duct Length in Crickets
Author Information
Author(s): Marshall Jeremy L.
Primary Institution: Kansas State University
Hypothesis
Spermathecal duct length is evolving rapidly and influences reproductive isolation.
Conclusion
The length of the female reproductive tract is associated with species boundaries and is influenced by Wolbachia infections.
Supporting Evidence
- Spermathecal duct length varies between species and is associated with species boundaries.
- There is considerable variation among populations within species.
- Wolbachia infection affects the length of the spermathecal duct.
- Experimental curing of Wolbachia recovers the uninfected morphology.
Takeaway
This study shows that the length of a part of female crickets' reproductive system changes quickly and can affect how different species mate.
Methodology
Field sampling and laboratory experiments were conducted to measure spermathecal duct length and assess the effects of Wolbachia infection.
Potential Biases
Potential bias due to the lack of control for host DNA amplification.
Limitations
The study did not conduct a control PCR for host DNA, which could introduce bias.
Participant Demographics
Crickets from various populations in North America.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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