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Drosophila melanogaster

ABSTRACT: RNA-seq analysis of long-term olfactory aversive memory in the mushroom body of Drosophila melanogaster.

PROVIDER: PRJDB3400 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	DRR029950.fastq.gz	Fastqsanger.gz
	DRR029951.fastq.gz	Fastqsanger.gz
	DRR029952.fastq.gz	Fastqsanger.gz
	DRR029953.fastq.gz	Fastqsanger.gz
	DRR029954.fastq.gz	Fastqsanger.gz

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Transcriptome Analysis of Drosophila Mushroom Body Neurons by Cell Type Reveals Memory-Related Changes in Gene Expression

Project description:We report the application of low cell number sequencing of identifiable Drosophila melanogaster neurons following behavior. We demonstate the feasibility of identifying the transcriptome of 5 Mushroom Body output Neurons and 2 classes of Kenyon Cells. We find these neurons display a diverse repertoire of receptors and signaling transcripts. This information alone seems to be enough to identify each class of neurons in the study. In additional we show that aversive long-term memory induces changes in gene transcript levels in a subset of these neurons. This study provides a framework for identifying neuronal classes in Drosophila melanogaster and gaining insight into the interplay between behavior and gene regulation.

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Project description:The formation of long-term memories requires changes in the transcriptional program and de novo protein synthesis. One of the critical regulators for long-term memory (LTM) formation and maintenance is the transcription factor CREB. Genetic studies have dissected the requirement of CREB activity within memory circuits, however less is known about the genetic mechanisms acting downstream of CREB and how they may contribute defining LTM phases. To better understand the downstream mechanisms, we here used a targeted DamID approach (TaDa). We generated a CREB-Dam fusion protein using the fruit fly Drosophila melanogaster as model. Expressing CREB-Dam in the mushroom bodies (MBs), a brain center implicated in olfactory memory formation, we identified genes that are differentially expressed between paired and unpaired appetitive training paradigm. Of those genes we selected candidates for an RNAi screen in which we identified genes causing increased or decreased LTM.

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Transcription profiling of Drosophila melanogaster ablated mushroom bodies vs unablated MB to investigate the repertoire of MB genes that control initiation and maintenance of neural differentiation during learning and memory

Project description:Mushroom bodies (MBs) are the centers for olfactory associative learning and elementary cognitive functions in the Drosophila brain. To get insights of the repertoire of MB genes that control initiation and maintenance of neural differentiation as well as the repertoire of neural factors that may have functions in the synaptic plasticity of MB neurons during learning and memory, we compared the transcript profiles between wild type and MB-ablated brains using a Drosophila whole-genome microarray. Newly hatched larvae were briefly administered with a DNA-synthesis inhibitor, hydroxyurea, and raised to adults, from which total brain RNA was analyzed. Experiment Overall Design: Two conditions analyzed: Control Brains and Musroom Body-ablated brains. Experiment Overall Design: Each condition was analyzed in triplicate.

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A Genome-Wide Survey of Drosophila Mushroom Body Transcripts with Chemical Ablation

Project description:Mushroom bodies (MBs) are the centers for olfactory associative learning and elementary cognitive functions in the Drosophila brain. To get insights of the repertoire of MB genes that control initiation and maintenance of neural differentiation as well as the repertoire of neural factors that may have functions in the synaptic plasticity of MB neurons during learning and memory, we compared the transcript profiles between wild type and MB-ablated brains using a Drosophila whole-genome microarray. Newly hatched larvae were briefly administered with a DNA-synthesis inhibitor, hydroxyurea, and raised to adults, from which total brain RNA was analyzed. Keywords: Chemical Ablation of Mushroom bodies from Drosophila brain

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