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SRX17122523: GSM6473366: Telencephalon, not building, biol rep 2; Mchenga conophoros; RNA-Seq
4 ILLUMINA (Illumina NovaSeq 6000) runs: 221.3M spots, 66.8G bases, 23.6Gb downloads

External Id: GSM6473366_r1
Submitted by: Streelman, School of Biological Sciences, Georgia Institute of Technology
Study: Cellular profiling of a recently-evolved social behavior [snRNA-seq]
show Abstracthide Abstract
Social behaviors are essential for survival and reproduction and vary strongly among individuals, species, and heritable brain diseases. The molecular and cellular bases of this variation are poorly resolved, and discovering them is necessary to understand how neural circuit and behavioral functions—and dysfunctions—vary in social contexts. Here we integrate single nucleus RNA-sequencing (snRNA-seq) with comparative genomics and automated behavior analysis to investigate the neurobiology of castle-building, a recently-evolved social, spatial, goal-directed, and repetitive construction behavior in Lake Malawi cichlid fishes. We simultaneously control for and analyze two biological variables correlated with castle-building behavior: quivering, a courtship “dance” behavior, and relative gonadal mass. We find signatures of building-, quivering-, and gonadal-associated neuronal excitation, gene expression, and neurogenesis in distinct cell populations. Converging lines of evidence support the involvement of estrogen, TrkB, and CCK signaling systems, and specific pallial excitatory neuronal subpopulations, in castle-building behavior. We show additional evidence that castle-building has evolved in part through genomic divergence in a gene module that is selectively expressed in stem-like quiescent radial glial cells (RGCs) lining the ventricular zone of the pallium. This RGC subpopulation exhibits signatures of a building-associated departure from quiescence, which in turn is associated with neuronal rebalancing in the putative fish homologue of the hippocampus. Our work supports an unexpected role for glia and neurogenesis in the evolution of social behavior, and more broadly shows how snRNA-seq can be used to systematically profile the cellular bases of previously unstudied social behaviors in new species systems. Overall design: Single nuclei RNA seqeuncing was performed on nuclei isolated by Fluorescence-activated cell sorting (FACS) from the telencephalon of Mchenga conophoros during bower-building behavior and 'control' fish that were not building.
Sample: Telencephalon, not building, biol rep 2
SAMN30372907 • SRS14695935 • All experiments • All runs
Library:
Name: GSM6473366
Instrument: Illumina NovaSeq 6000
Strategy: RNA-Seq
Source: TRANSCRIPTOMIC SINGLE CELL
Selection: cDNA
Layout: PAIRED
Construction protocol: Frozen telencephalon tissue samples were incubated on ice for 30 minutes in chilled lysis buffer (10 mM Tris-HCL, 10 mM NaCl, 3 mM MgCl2, 1% Nonidet P40 Substitute, and Nuclease-free H2O) with gentle rotation. Following lysis, HAB medium (with 2% B27 and 0.5 mM Glutamax) was added and tissue was triturated using silanized glass Pasteur pipettes (500 μm internal diameter) to complete tissue dissociation. Samples were centrifuged (600rcf, 5 minutes, 4°C) and resuspended in chilled wash and resuspension buffer (1X PBS, 2% BSA, 0.2 U/μl RNase Inhibitor). Nuclei suspensions were filtered through 40 μm Flowmi® cell strainers and 30 μm MACS® SmartStrainers to remove debris and large nuclei aggregations. Finally, fluorescence activated cell sorting (FACS) was used to further purify samples. DAPI (1.0 μg/ml) was used as a nuclear stain and viable, intact nuclei singlets were selected and sorted into collection buffer (1X PBS, 2% BSA, 0.2 U/μl RNase Inhibitor) using a BD FACSAriaTM Fusion Cell Sorter. Libraries were prepared according to manufacturer instructions (Chromium Single Cell 3' Reagent Kits User Guide v3.1 Chemistry (10X Genomics)). Single nuclei suspensions were loaded onto the 10x Genomics Chromium Controller and partitioned into individual GEMs (gel bead-in emulsion), each containing a single nucleus, a barcoded gel bead and master mix with reverse transcription (RT) reagents. Primers released from each gel bead include a 10X barcode, unique molecular identifier (UMI) and Illumina R1 primer. Partitioned nuclei were lysed and GEMs were incubated to produce full-length, barcoded cDNA. Barcoded cDNA were purified using Silane magnetic beads and amplified via PCR . Amplified cDNA was size-selected with SPRIselect. During final library construction, an Illumina R2 primer sequence, I5 and I7 paired-end construct sequences, and a sample index were added. Quality was assessed using high sensitivity DNA analysis on the Bioanalyzer 2100 system (Agilent) and libraries were quantified using Qubit 2.0 (Invitrogen). snRNA-seq
Runs: 4 runs, 221.3M spots, 66.8G bases, 23.6Gb
Run# of Spots# of BasesSizePublished
SRR2110898758,291,14117.6G6.2Gb2023-06-12
SRR2110898849,825,54815G5.3Gb2023-06-12
SRR2110898949,135,20014.8G5.2Gb2023-06-12
SRR2110900664,022,88419.3G6.8Gb2023-06-12

ID:
23921794

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