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Related Experiment Video

Updated: Apr 6, 2026

Light Sheet-based Fluorescence Microscopy of Living or Fixed and Stained Tribolium castaneum Embryos
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INSECT PHYLOGENOMICS. Response to Comment on "Phylogenomics resolves the timing and pattern of insect evolution".

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Summary

This study addresses a reanalysis of insect phylogeny data. While alternative methods were proposed, the original data analysis and conclusions remain valid.

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Area of Science:

  • Evolutionary biology
  • Paleontology
  • Phylogenetics

Background:

  • Phylogenetic analyses are crucial for understanding evolutionary relationships.
  • Accurate dating of evolutionary divergences is essential for robust phylogenetic inference.
  • Previous insect phylogeny studies have utilized various dating methodologies.

Purpose of the Study:

  • To address comments and a reanalysis of insect phylogeny data presented by Tong et al.
  • To evaluate the impact of alternative prior choices and calibration points on phylogenetic dating.
  • To reaffirm the appropriateness of the original analytical methods and conclusions.

Main Methods:

  • The study involves a critical review of a proposed reanalysis of insect phylogenetic data.
  • Comparison of log-normal priors versus uniform priors in Bayesian phylogenetic inference.
  • Assessment of the influence of incorporating additional fossil calibration points, specifically a "roachoid" fossil.

Main Results:

  • The reanalysis by Tong et al. offers an alternative perspective on insect phylogeny dating.
  • The original study's choice of log-normal priors is defended as appropriate for the dataset.
  • The inclusion of the "roachoid" fossil as a calibration point is considered within the context of the reanalysis.

Conclusions:

  • The original analytical choices for insect phylogeny dating were scientifically sound.
  • While alternative viewpoints exist, they do not invalidate the initial findings.
  • Further discussion on methodological choices in phylogenetic dating is warranted.