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@ARTICLE{Li:1037652,
author = {Li, Deying and Wang, Yufan and Ma, Liang and Wang, Yaping
and Cheng, Luqi and Liu, Yinan and Shi, Weiyang and Lu,
Yuheng and Wang, Haiyan and Gao, Chaohong and Erichsen,
Camilla T. and Zhang, Yu and Yang, Zhengyi and Eickhoff,
Simon B and Chen, Chi-Hua and Jiang, Tianzi and Chu,
Congying and Fan, Lingzhong},
title = {{T}opographic {A}xes of {W}iring {S}pace {C}onverge to
{G}enetic {T}opography in {S}haping {H}uman {C}ortical
{L}ayout},
journal = {The journal of neuroscience},
volume = {.},
issn = {0270-6474},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2025-00817},
pages = {e1510242024 -},
year = {2025},
abstract = {Genetic information is involved in the gradual emergence of
cortical areas since the neural tube begins to form, shaping
the heterogeneous functions of neural circuits in the human
brain. Informed by invasive tract-tracing measurements, the
cortex exhibits marked interareal variation in connectivity
profiles, revealing the heterogeneity across cortical areas.
However, it remains unclear about the organizing principles
possibly shared by genetics and cortical wiring to manifest
the spatial heterogeneity across cortex. Instead of
considering a complex one-to-one mapping between genetic
coding and interareal connectivity, we hypothesized the
existence of a more efficient way that the organizing
principles are embedded in genetic profiles to underpin the
cortical wiring space. Leveraging vertex-wise tractography
in diffusion-weighted MRI, we derived the global
connectopies in both female and male to reliably index the
organizing principles of interareal connectivity variation
in a low-dimensional space, which captured three dominant
topographic patterns along the dorsoventral, rostrocaudal,
and mediolateral axes of the cortex. More importantly, we
demonstrated that the global connectopies converge with the
gradients of a vertex-by-vertex genetic correlation matrix
on the phenotype of cortical morphology and the cortex-wide
spatiomolecular gradients. By diving into the genetic
profiles, we found that the critical role of genes
scaffolding the global connectopies was related to brain
morphogenesis and enriched in radial glial cells before
birth and excitatory neurons after birth. Taken together,
our findings demonstrated the existence of a genetically
determined space that encodes the interareal connectivity
variation, which may give new insights into the links
between cortical connections and arealization.Significance
Statement Genetic factors have involved the gradual
emergence of cortical areas since the neural tube begins to
form, shaping the specialization of neural circuitry in the
human brain. However, the mechanisms through which genetics
encode the complex interareal connectivity remain a pivotal
and unanswered question in the field of neuroscience. Here,
we hypothesized that a genetically determined space encoding
the interareal connectivity variation exists, which may give
new insights into the links between cortical connections and
arealization. We combined diffusion tractography with a
dimension reduction framework to unravel the underlying
global topographic principle revealed by the anatomical
connections.},
cin = {INM-7},
ddc = {610},
cid = {I:(DE-Juel1)INM-7-20090406},
pnm = {5253 - Neuroimaging (POF4-525)},
pid = {G:(DE-HGF)POF4-5253},
typ = {PUB:(DE-HGF)16},
pubmed = {39824638},
UT = {WOS:001425206500002},
doi = {10.1523/JNEUROSCI.1510-24.2024},
url = {https://juser.fz-juelich.de/record/1037652},
}