Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

The effect of larval diet on the fecundity-longevity relationship and age-related gene expression in Drosophila melanogaster

ABSTRACT: The effect of larval diet on the fecundity-longevity relationship and age-related gene expression in Drosophila melanogaster

PROVIDER: PRJNA733112 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
	SRR14664743_1.fastq.gz	Fastqsanger.gz
	SRR14664743_2.fastq.gz	Fastqsanger.gz
	SRR14664744_1.fastq.gz	Fastqsanger.gz
	SRR14664744_2.fastq.gz	Fastqsanger.gz
	SRR14664745_1.fastq.gz	Fastqsanger.gz

Items per page:

1 - 5 of 72

Similar Datasets

The effect of larval diet on the fecundity-longevity relationship and age-related gene expression in Drosophila melanogaster

Project description:Our two main aims were 1) to isolate age-related changes in gene expression in females of the solitary insect, Drosophila melanogaster; and 2) to determine whether experimentally changing the shape of the fecundity-longevity relationship (by changing larvae diet) caused changes in age-related gene expression in these females. To address these aims we extracted RNA from three key tissues (fat body, head and ovary) from females at two time points (10% and 60% mortality phases). Each of these females had experienced one of two treatments: medium-quality larval diet (M) treatment (resulting in a positive fecundity-longevity relationship) and high-quality larval diet (H) treatment (resulting in a negative fecundity-longevity relationship).

2023-08-18 | GSE175623 | GEO

How can ant queens live so long? Genes of multiple longevity pathways change expression with age in the ant Temnothorax rugatulus

Project description:Senescence is manifested by an increase in oxidative stress and a decline in biological functions with age. In most organisms, body maintenance is traded-off with reproduction. The negative relationship between longevity and fecundity is also evident on the molecular level, yet the proximate mechanisms remain poorly understood. Apparently by-passing this trade-off, social insect queens are both extremely long-lived (up to 30 years in some ants) and highly fecund compared to workers. Here, we study changes in gene expression with age and fecundity in queens to determine how the trade-off between those two traits is reshaped. We analyse tissue-specific gene expression in young founding queens and old, highly fecund queens of the ant Temnothorax rugatulus. More genes altered their expression with age in the fat body than in the brain. Despite strong differences in ovary development, few fecundity genes were differentially expressed. However, many longevity genes involved in well-known pathways or lifespan-associated biological processes changed their expression with age indicating that multiple longevity mechanisms are activated successively throughout a queens’ life. Young queens invested in immunity (i.e. activation of the Toll signalling pathway) and resistance against environmental and physiological stress associated with the founding phase (i.e. down regulation of the TOR pathway), while established older queens up-regulate anti-aging mechanisms (i.e. up-regulation of catalase, superoxide dismutase, heat shock 70 kDa proteins). Finally, we identified a number of candidate genes and pathways, potentially involved in reshaping the fertility-longevity trade-off in social insects, shedding light on how this is achieved on a proximate level.

2018-03-06 | GSE111415 | GEO

mRNA sequence of Drosophila melanogaster heads to evaluate the neurological effects of larval diet on adults

Project description:Drosophila melanogaster larvae reared on isocaloric diets with different protein/sugar ratios, exhibit different developmental times and the eclosed adults show different metabolite pools of glycogen and triglycerides (Matzkin et al., 2011, PMID: 21525254). To investigate the effect of larval diet on adult neurological processes at the gene expression level we performed high throughout RNA sequencing of fly heads reared in two different protein/sugar ratio diets.

2017-06-03 | GSE82245 | GEO

Adult and larval tracheal systems exhibit different molecular architectures in Drosophila

Project description:We analysed the RNA-seq profile of larval and adult trachea of the fruitfly Drosophila melanogaster, as well as from whole flies.

2024-02-12 | GSE225000 | GEO

Developmental Diet Alters the Fecundity-Longevity Relationship and Age-Related Gene Expression in Drosophila melanogaster.

Project description:The standard evolutionary theory of aging predicts a negative relationship (trade-off) between fecundity and longevity. However, in principle, the fecundity-longevity relationship can become positive in populations in which individuals have unequal resources. Positive fecundity-longevity relationships also occur in queens of eusocial insects such as ants and bees. Developmental diet is likely to be central to determining trade-offs as it affects key fitness traits, but its exact role remains uncertain. For example, in Drosophila melanogaster, changes in adult diet can affect fecundity, longevity, and gene expression throughout life, but it is unknown how changes in developmental (larval) diet affect fecundity-longevity relationships and gene expression in adults. Using D. melanogaster, we tested the hypothesis that varying developmental diets alters the directionality of fecundity-longevity relationships in adults, and characterized associated gene expression changes. We reared larvae on low (20%), medium (100%), and high (120%) yeast diets, and transferred adult females to a common diet. We measured fecundity and longevity of individual adult females and profiled gene expression changes with age. Adult females raised on different larval diets exhibited fecundity-longevity relationships that varied from significantly positive to significantly negative, despite minimal differences in mean lifetime fertility or longevity. Treatments also differed in age-related gene expression, including for aging-related genes. Hence, the sign of fecundity-longevity relationships in adult insects can be altered and even reversed by changes in larval diet quality. By extension, larval diet differences may represent a key mechanistic factor underpinning positive fecundity-longevity relationships observed in species such as eusocial insects.

| S-EPMC10692432 | biostudies-literature

Drosophila melanogaster female late third instar larval gonads single-cell RNA-Seq (scRNA-Seq) profiling

Project description:The larval ovary is made up of multiple cell types including germ cells and somatic cells. The diversity of cell types and transcriptional regulation is not fully understood. To get single cell resolution of larval ovary regulation, we generated single-cell RNA expression profiles (scRNA-Seq) from late third instar larval ovaries of a reference Drosophila melanogaster genotype w[1118].

2019-02-01 | GSE125948 | GEO

Two Conserved Histone Demethylases Regulate Mitochondrial Stress-Induced Longevity

Project description:Across eukaryotic species, mild mitochondrial stress can have beneficial effects on the lifespan of organisms. Mitochondrial dysfunction activates an unfolded protein response (UPRmt), a stress signaling mechanism designed to ensure mitochondrial homeostasis. Perturbation of mitochondria during larval development in C. elegans not only delays aging but also maintains UPRmt signaling, suggesting an epigenetic mechanism that modulates both longevity and mitochondrial proteostasis throughout life. Here we identify the conserved histone lysine demethylases jmjd-1.2/PHF8 and jmjd-3.1/JMJD3 as positive regulators of lifespan in response to mitochondrial dysfunction across species. Reduction-of-function of the demethylases potently suppresses longevity and UPRmt induction while gain-of-function is sufficient to extend lifespan in an UPRmt-dependent manner. A systems genetics approach in the BXD mouse reference population further indicated conserved roles of the mammalian orthologs in longevity and UPRmt signaling. These findings illustrate an evolutionary conserved epigenetic mechanism that determines the rate of aging downstream of mitochondrial perturbations.

2016-05-03 | GSE78990 | GEO

Sex- and age-dependent genetics of longevity in a heterogeneous mouse population

Project description:DNA variants that modulate lifespan provide insight into determinants of health, disease, and aging. Through analyses in the UM-HET3 mice of the Interventions Testing Program (ITP), we detected a sex-independent quantitative trait locus (QTL) on chromosome 12 and identified sex-specific QTLs, some of which detected only in older mice. Similar relations between life history and longevity were uncovered in mice and humans, underscoring the importance of early access to nutrients and early growth. We identified common, age- and sex-specific genetic effects on gene expression that we integrated with model organism and human data to create a hypothesis-building interactive resource of prioritized longevity and body weight genes. Finally, we validated Hipk1, Ddost, Hspg2, Fgd6, and Pdk1 as conserved longevity genes using C. elegans lifespan experiments.

2022-09-30 | GSE194321 | GEO

Single cell transcriptome analysis of quiescent versus reactivating Drosophila melanogaster larval central nervous system neural stem cells.

Project description:Single-cell transcriptome profile of Drosophila melanogaster larval brain quiescent versus reactivating (enlarged) neural stem cells, using whole-genome microarrays.

2019-03-22 | GSE128646 | GEO

Transcriptomic analysis of wild-type and amos mutant D. melanogaster third-instar larval antennal discs and adult antennae

Project description:Comparative transcriptomic analysis of Drosophila melanogaster third-instar larval antennal discs and adult antennae from wild-type animals and amos mutant animals.

2021-12-13 | GSE190696 | GEO