Related Experiment Video
Updated: Jan 5, 2026
11:52
Temporal Ordering of Dynamic Expression Data from Detailed Spatial Expression Maps
Published on: February 9, 2017
6.5K
Spatiotemporal gene expression patterns reveal molecular relatedness between retinal laminae
Danye Jiang1,2, Courtney A Burger1,2, Anna K Casasent1,2
1Department of Neuroscience, Baylor College of Medicine, Houston, Texas.
The Journal of Comparative Neurology
|October 15, 2019
Summary
Researchers identified molecular features coordinating neuron organization in the central nervous system. Using the murine retina, they discovered novel genes like Bbox1, Dbn1, and Fmnl3 that mark specific neuronal layers and cell types.
Area of Science:
- Neuroscience
- Developmental Biology
- Molecular Biology
Background:
- Neurons in the central nervous system organize into specific layers (laminae) for distinct functions.
- Little is known about shared molecular features coordinating diverse neuron types within these laminae.
Purpose of the Study:
- To identify molecular candidates that coordinate the organization of diverse neuron types within retinal laminae.
- To create a spatiotemporal map of laminae-specific molecules in the developing and adult murine retina.
Main Methods:
- Screened 92 lacZ reporter lines from the Knockout Mouse Project in the murine retina.
- Analyzed spatiotemporal expression patterns of identified genes during key developmental stages.
- Validated novel markers for specific retinal neuron populations.
Main Results:
- Identified 32 reporter lines with expression in restricted inner retina neuron subsets.
- Discovered genes like Hmga1 enriched during development and reduced in adulthood.
- Identified Bbox1 as a novel marker for ganglion cell layer neurons.
- Established Dbn1 as a marker for amacrine cells and Fmnl3 for alpha-RGCs (αRGCs).
Conclusions:
- Diverse neuron types within a lamina may share coordinating molecular features.
- These molecular features might influence neuronal fate and function.
- Provided a spatiotemporal map of laminae-specific molecules in the retina.
