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Front Neural Circuits. 2019 Jul 19;13:47. doi: 10.3389/fncir.2019.00047. eCollection 2019.

Uncovering the Transcriptional Correlates of Hub Connectivity in Neural Networks.

Author information

1
Monash Biomedical Imaging, School of Psychological Sciences, Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia.
2
School of Physics, The University of Sydney, Sydney, NSW, Australia.

Abstract

Connections in nervous systems are disproportionately concentrated on a small subset of neural elements that act as network hubs. Hubs have been found across different species and scales ranging from C. elegans to mouse, rat, cat, macaque, and human, suggesting a role for genetic influences. The recent availability of brain-wide gene expression atlases provides new opportunities for mapping the transcriptional correlates of large-scale network-level phenotypes. Here we review studies that use these atlases to investigate gene expression patterns associated with hub connectivity in neural networks and present evidence that some of these patterns are conserved across species and scales.

KEYWORDS:

connectome; gene expression; genome; graph theory; hub; network neuroscience; rich-club

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