Digital three-dimensional atlas of quail development using high-resolution MRI.

Area of Science:

• Developmental Biology
• Bioimaging
• Computational Biology

Background:

• Understanding avian embryonic development requires detailed anatomical references.
• Microscopic magnetic resonance imaging (microMRI) offers high-resolution, non-invasive visualization of biological structures.

Purpose of the Study:

• To create a comprehensive three-dimensional (3D) digital atlas of the developing quail embryo.
• To provide a framework for integrating diverse biological data (e.g., gene expression, cell migration) within a spatial context.

Main Methods:

• Acquisition of microMRI data from fixed quail embryos (embryonic day 5-10).
• Development of a coarsely delineated anatomical atlas from microMRI scans.
• Construction of an organ system-based hierarchical graph linked to anatomical delineations.
• Utilizing the SHIVA Java application for atlas access and data integration.

Main Results:

• A multi-module digital atlas comprising microMRI images, anatomical delineations, and a hierarchical graph.
• The atlas is extensible, allowing incorporation of various data types and links to external resources.
• Demonstration of the atlas as a framework for analyzing spatial relationships of developmental data.

Conclusions:

• The developed 3D digital atlas provides a valuable resource for studying quail embryogenesis.
• This framework facilitates the spatial analysis of gene expression, cell migration, and other developmental processes.
• The atlas enhances the understanding of normal 3D anatomy and its relation to molecular and cellular events.