Zebrafish Doppler Effect (IMAGE)

Max-Planck-Gesellschaft

Zebrafish Doppler Effect

Caption

This is a still from a time-lapse movie showing a zebrafish embryo making its body segments sequentially and rhythmically. Waves of oscillating gene expression are visible in pseudo-color sweeping from the posterior to the anterior through the unsegmented tissue. The anterior end of this unsegmented tissue moves steadily into these on-coming waves, creating a Doppler effect that contributes to the rhythm of segmentation.

Credit

Max Planck Institute of Molecular Cell Biology and Genetics

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