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Unveiling vertebrate development dynamics in frog Xenopus laevis using micro-CT imaging.

Jakub Laznovsky1, Michaela Kavkova1, Alice Helena Reis2

  • 1Central European Institute of Technology, Brno University of Technology, 612 00 Brno, Czech Republic.

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|July 16, 2024
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Summary

This study uses micro-computed tomography (micro-CT) to create detailed 3D models of Xenopus laevis development, filling a gap in late-stage data for this key vertebrate model organism.

Keywords:
Xenopus laevisdevelopmentmicro–computed tomographymorphological changesvertebrates

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Area of Science:

  • Developmental Biology
  • Comparative Anatomy
  • Imaging Science

Background:

  • Xenopus laevis is a crucial vertebrate model for studying body plan development, particularly metamorphosis.
  • A significant gap exists in comprehensive data for late-stage Xenopus development.
  • Understanding these later stages is vital for a complete picture of vertebrate development.

Purpose of the Study:

  • To address the lack of comprehensive datasets for late-stage Xenopus laevis development.
  • To utilize micro-computed tomography (micro-CT) for high-resolution 3D imaging of Xenopus development.
  • To document morphological changes during metamorphosis and post-metamorphic stages.

Main Methods:

  • Employed micro-computed tomography (micro-CT) for noninvasive, micrometer-scale resolution 3D imaging.
  • Generated high-resolution scans and computed 3D models of Xenopus specimens from tadpoles to adults.
  • Conducted detailed morphological analysis of size, shape, skeletogenesis, teeth, brain, and gut.

Main Results:

  • Successfully generated a comprehensive dataset of 3D micro-CT scans covering late Xenopus laevis developmental stages.
  • Provided detailed insights into 3D morphological changes, including skeletogenesis and organ development.
  • Documented previously unrecorded morphological details during Xenopus metamorphosis and adulthood.

Conclusions:

  • The micro-CT scan repository offers a valuable resource for future Xenopus developmental and morphological research.
  • The high-quality, comprehensive dataset facilitates broader research applications, including morphometric analyses.
  • Scans have potential applications in virtual reality, 3D printing, and educational contexts.