ZFIN Image: Rombouts et al., 2025, Fig. 1

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Figure Caption

Fig. 1 Cell division timing in early Xenopus laevis embryos scales approximately Arrhenius over a wide range of temperatures. A Xenopus laevis embryonic development was imaged in a temperature-controlled chamber introduced in ref. 34. The time unit mpf is minutes post-fertilization. B Different early developmental events were visually identified. SEP denotes the sperm entry point. Adapted from ref. 100. C Duration of several early developmental periods in function of temperature in the range [ C, C]. D An Arrhenius fit is shown for the values between 12 °C and 21 °C, with the apparent activation energy indicated. E Bootstrapping provides a probability distribution for the apparent activation energies. Histograms from 1000 bootstrap samples. The mean and 90% confidence interval (CI) are also indicated. Source data are provided as a Source Data file98.

Acknowledgments

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