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Series GSE222976 Query DataSets for GSE222976
Status Public on Feb 08, 2023
Title Molecular Logic of Synaptic Diversity Between Drosophila Tonic and Phasic Motoneurons
Organism Drosophila melanogaster
Experiment type Expression profiling by high throughput sequencing
Summary Although neuronal subtypes often display unique synaptic organization and function, the underlying transcriptional differences necessary to establish these features is poorly understood. To identify molecular pathways that establish synaptic diversity, single neuron PatchSeq RNA profiling was performed on Drosophila tonic and phasic glutamatergic motoneurons. Tonic motoneurons form weaker facilitating synapses onto single muscles, while phasic motoneurons form stronger depressing synapses onto multiple muscles. Super-resolution microscopy and in vivo imaging demonstrated synaptic active zones in phasic motoneurons are more compact and display enhanced Ca2+ influx compared to their tonic counterparts. Genetic analysis identified unique synaptic properties that mapped onto gene expression differences in several cellular pathways, including distinct signaling ligands, post-translational modifications and intracellular Ca2+ buffers. These findings provide insights into how unique transcriptomes can drive functional and morphological differences between two closely related neuronal subgroups.
 
Overall design PatchSeq RNA profiling of 105 1B motor neurons, 101 1S motor neurons, 17 M1 muscle cells and 26 M4 muscle cells.
 
Contributor(s) Jetti SK, Crane AB, Akbergenova Y, Aponte-Santiago NA, Cunningham KL, Whittaker CA, Littleton JT
Citation(s) 36711745, 37717212
Submission date Jan 16, 2023
Last update date Nov 13, 2023
Contact name Charles Arthur Whittaker
E-mail(s) charliew@mit.edu
Organization name Koch Institute
Street address 77 Mass Ave 76-189
City Cambridge
State/province MA
ZIP/Postal code 02152
Country USA
 
Platforms (1)
GPL19132 Illumina NextSeq 500 (Drosophila melanogaster)
Samples (249)
GSM6936130 1S neuron, seqment A3, animal 1, cell d225001
GSM6936131 1S neuron, seqment A2, animal 1, cell d225002
GSM6936132 1B neuron, seqment A2, animal 2, cell d225003
Relations
BioProject PRJNA924323

Download family Format
SOFT formatted family file(s) SOFTHelp
MINiML formatted family file(s) MINiMLHelp
Series Matrix File(s) TXTHelp

Supplementary file Size Download File type/resource
GSE222976_1b1sm_intCt.txt.gz 2.0 Mb (ftp)(http) TXT
GSE222976_1b1sm_isoform_intCt.txt.gz 3.9 Mb (ftp)(http) TXT
GSE222976_1b1sm_isoform_l2tpm.txt.gz 7.1 Mb (ftp)(http) TXT
GSE222976_1b1sm_l2tpm.txt.gz 5.1 Mb (ftp)(http) TXT
SRA Run SelectorHelp
Raw data are available in SRA
Processed data are available on Series record

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