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. Author manuscript; available in PMC: 2021 Dec 1.
Published in final edited form as: J Chem Neuroanat. 2020 Oct 5;110:101868. doi: 10.1016/j.jchemneu.2020.101868

Table 1.

Grouping of transcriptional subtypes and alignment with a mnemonic nickname, general location and likely projection targets. Currently group 13, NK1-Vglut3 neurons would not be identified as serotonergic by any other means and thus we call them ‘non-5-HT’, although they do express low levels of genes could enable serotonin neurotransmission

Okaty et al. Group Nickname Location Bias Projection Bias
1 Scattered Scattered
2 Less Vglut3 Lateral, Rostral and Dorsal Subcortical
3
4
5 Transitional Rostral>Caudal
6
7 MR-like Caudal Septohippocampal
8
9 More Vglut3 Middle Ventral Cortical
10
11
12 Met+ Caudal Dorsal Ventricular walls
13 NK1-Vglut3 (non-5-HT) Middle Central VTA
14 Atypical Mixed/Caudal Distinctive