Muñoz-Castañeda, Rodrigo, Zingg, Brian, Matho, Katherine S, Chen, Xiaoyin, Wang, Quanxin, Foster, Nicholas N, Li, Anan, Narasimhan, Arun, Hirokawa, Karla E, Huo, Bingxing, Bannerjee, Samik, Korobkova, Laura, Park, Chris Sin, Park, Young-Gyun, Bienkowski, Michael S, Chon, Uree, Wheeler, Diek W, Li, Xiangning, Wang, Yun, Naeemi, Maitham, Xie, Peng, Liu, Lijuan, Kelly, Kathleen, An, Xu, Attili, Sarojini M, Bowman, Ian, Bludova, Anastasiia, Cetin, Ali, Ding, Liya, Drewes, Rhonda, D'Orazi, Florence, Elowsky, Corey, Fischer, Stephan, Galbavy, William, Gao, Lei, Gillis, Jesse, Groblewski, Peter A, Gou, Lin, Hahn, Joel D, Hatfield, Joshua T, Hintiryan, Houri, Huang, Junxiang Jason, Kondo, Hideki, Kuang, Xiuli, Lesnar, Philip, Li, Xu, Li, Yaoyao, Lin, Mengkuan, Lo, Darrick, Mizrachi, Judith, Mok, Stephanie, Nicovich, Philip R, Palaniswamy, Ramesh, Palmer, Jason, Qi, Xiaoli, Shen, Elise, Sun, Yu-Chi, Tao, Huizhong W, Wakemen, Wayne, Wang, Yimin, Yao, Shenqin, Yuan, Jing, Zhan, Huiqing, Zhu, Muye, Ng, Lydia, Zhang, Li I, Lim, Byung Kook, Hawrylycz, Michael, Gong, Hui, Gee, James C, Kim, Yongsoo, Chung, Kwanghun, Yang, X William, Peng, Hanchuan, Luo, Qingming, Mitra, Partha P, Zador, Anthony M, Zeng, Hongkui, Ascoli, Giorgio A, Josh Huang, Z, Osten, Pavel, Harris, Julie A, Dong, Hong-Wei (October 2021) Cellular anatomy of the mouse primary motor cortex. Nature, 598 (7879). pp. 159-166. ISSN 0028-0836
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Abstract
An essential step toward understanding brain function is to establish a structural framework with cellular resolution on which multi-scale datasets spanning molecules, cells, circuits and systems can be integrated and interpreted1. Here, as part of the collaborative Brain Initiative Cell Census Network (BICCN), we derive a comprehensive cell type-based anatomical description of one exemplar brain structure, the mouse primary motor cortex, upper limb area (MOp-ul). Using genetic and viral labelling, barcoded anatomy resolved by sequencing, single-neuron reconstruction, whole-brain imaging and cloud-based neuroinformatics tools, we delineated the MOp-ul in 3D and refined its sublaminar organization. We defined around two dozen projection neuron types in the MOp-ul and derived an input-output wiring diagram, which will facilitate future analyses of motor control circuitry across molecular, cellular and system levels. This work provides a roadmap towards a comprehensive cellular-resolution description of mammalian brain architecture.
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