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Morphogenesis

Morphogenesis

Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.

Cleavage and Blastulation

Cleavage and Blastulation

After a large-single-celled zygote is produced via fertilization, the process of cleavage occurs while zygotes travel through the uterine tube. Cleavage is a mitotic cell division that does not result in growth. With each round of successive cell division, daughter cells get increasingly smaller.

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Related Experiment Video

Updated: Sep 19, 2025

Isotropic Light-Sheet Microscopy and Automated Cell Lineage Analyses to Catalogue Caenorhabditis elegans Embryogenesis with Subcellular Resolution

Isotropic Light-Sheet Microscopy and Automated Cell Lineage Analyses to Catalogue Caenorhabditis elegans Embryogenesis with Subcellular Resolution

Published on: June 6, 2019

Spectral decomposition unlocks ascidian morphogenesis.

Joel Dokmegang^1,2, Emmanuel Faure^3,4, Patrick Lemaire^3,5

¹Northwestern University, Evanston, United States.

|June 16, 2025

Summary

This summary is machine-generated.

This study introduces a new computational framework using continuum mechanics and spectral decomposition to analyze embryonic development. It automates the detection and timing of morphological processes, revealing the developmental blueprint of ascidian embryos.

Keywords:

ascidian developmental biology gastrulation morphogenesis neurulation physics of living systems spherical harmonics waveket transform

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Area of Science:

Developmental Biology
Biophysics
Computational Biology

Background:

Describing morphogenesis typically involves aggregating high-resolution spatiotemporal data into low-dimensional processes.
Current methods like qualitative or basic statistical analysis of live imaging are time-consuming, lack standardization, and are difficult to scale.

Purpose of the Study:

To develop a standardized framework for automatic detection and timing of morphological processes in developing embryos.
To leverage continuum mechanics and spectral decomposition for quantitative analysis of embryogenesis.

Main Methods:

Quantified whole-embryo scale shape changes by estimating the strain rate tensor field of the time-evolving surface.
Applied spectral decomposition in space (spherical harmonics) and time (wavelet transforms) to the strain rate data.
Avoided the need for cellular segmentation and tracking.

Main Results:

Identified principal dynamical modes of ascidian embryogenesis.
Automatically unveiled the developmental blueprint through scalograms.
Provided a standardized and scalable approach to analyzing developmental processes.

Conclusions:

The proposed framework offers a robust and automated method for analyzing complex developmental processes.
This approach provides new insights into the spatiotemporal dynamics of embryogenesis.
The findings pave the way for standardized analysis of developmental biology across species.