RT Journal Article SR Electronic T1 Cellular Anatomy of the Mouse Primary Motor Cortex JF bioRxiv FD Cold Spring Harbor Laboratory SP 2020.10.02.323154 DO 10.1101/2020.10.02.323154 A1 Rodrigo Muñoz-Castañeda A1 Brian Zingg A1 Katherine S. Matho A1 Quanxin Wang A1 Xiaoyin Chen A1 Nicholas N. Foster A1 Arun Narasimhan A1 Anan Li A1 Karla E. Hirokawa A1 Bingxing Huo A1 Samik Bannerjee A1 Laura Korobkova A1 Chris Sin Park A1 Young-Gyun Park A1 Michael S. Bienkowski A1 Uree Chon A1 Diek W. Wheeler A1 Xiangning Li A1 Yun Wang A1 Kathleen Kelly A1 Xu An A1 Sarojini M. Attili A1 Ian Bowman A1 Anastasiia Bludova A1 Ali Cetin A1 Liya Ding A1 Rhonda Drewes A1 Florence D’Orazi A1 Corey Elowsky A1 Stephan Fischer A1 William Galbavy A1 Lei Gao A1 Jesse Gillis A1 Peter A. Groblewski A1 Lin Gou A1 Joel D. Hahn A1 Joshua T. Hatfield A1 Houri Hintiryan A1 Jason Huang A1 Hideki Kondo A1 Xiuli Kuang A1 Philip Lesnar A1 Xu Li A1 Yaoyao Li A1 Mengkuan Lin A1 Lijuan Liu A1 Darrick Lo A1 Judith Mizrachi A1 Stephanie Mok A1 Maitham Naeemi A1 Philip R. Nicovich A1 Ramesh Palaniswamy A1 Jason Palmer A1 Xiaoli Qi A1 Elise Shen A1 Yu-Chi Sun A1 Huizhong Tao A1 Wayne Wakemen A1 Yimin Wang A1 Peng Xie A1 Shenqin Yao A1 Jin Yuan A1 Muye Zhu A1 Lydia Ng A1 Li I. Zhang A1 Byung Kook Lim A1 Michael Hawrylycz A1 Hui Gong A1 James C. Gee A1 Yongsoo Kim A1 Hanchuan Peng A1 Kwanghun Chuang A1 X William Yang A1 Qingming Luo A1 Partha P. Mitra A1 Anthony M. Zador A1 Hongkui Zeng A1 Giorgio A. Ascoli A1 Z Josh Huang A1 Pavel Osten A1 Julie A. Harris A1 Hong-Wei Dong YR 2020 UL http://biorxiv.org/content/early/2020/10/02/2020.10.02.323154.abstract AB An essential step toward understanding brain function is to establish a cellular-resolution structural framework upon which multi-scale and multi-modal information spanning molecules, cells, circuits and systems can be integrated and interpreted. Here, through a collaborative effort from the Brain Initiative Cell Census Network (BICCN), we derive a comprehensive cell type-based description of one brain structure - the primary motor cortex upper limb area (MOp-ul) of the mouse. Applying state-of-the-art labeling, imaging, computational, and neuroinformatics tools, we delineated the MOp-ul within the Mouse Brain 3D Common Coordinate Framework (CCF). We defined over two dozen MOp-ul projection neuron (PN) types by their anterograde targets; the spatial distribution of their somata defines 11 cortical sublayers, a significant refinement of the classic notion of cortical laminar organization. We further combine multiple complementary tracing methods (classic tract tracing, cell type-based anterograde, retrograde, and transsynaptic viral tracing, high-throughput BARseq, and complete single cell reconstruction) to systematically chart cell type-based MOp input-output streams. As PNs link distant brain regions at synapses as well as host cellular gene expression, our construction of a PN type resolution MOp-ul wiring diagram will facilitate an integrated analysis of motor control circuitry across the molecular, cellular, and systems levels. This work further provides a roadmap towards a cellular resolution description of mammalian brain architecture.Competing Interest StatementThe authors have declared no competing interest.