Ontology highlight
ABSTRACT:
PROVIDER: PRJNA826118 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR18758686_1.fastq.gz | Fastqsanger.gz | |||
| SRR18758686_2.fastq.gz | Fastqsanger.gz | |||
| SRR18758687_1.fastq.gz | Fastqsanger.gz | |||
| SRR18758687_2.fastq.gz | Fastqsanger.gz | |||
| SRR18758688_1.fastq.gz | Fastqsanger.gz |
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Project description:We generated 4 separate subpopulations of selected flies from 1 starting population of a mixture of Canton-S flies. Two of the populations (AggrI and AggrII) were selected for increased aggression by picking males from a population cage that engaged in the most intense fighting (known as escalation behavior). Thirty males were selected every generation (from a total of 120 males per cage) per line and mated with random virgin females from that same generation. Two control populations (NeutrI and NeutrII) were selected by picking random males from the population cage after 15-30 aggressive males were removed. After 21 generations of selection males from the Aggr lines were dramatically more aggressive than males from the Neutr lines. The Neutr lines did not significantly differ from the starting population although a trend of decreased aggression was visible. Keywords: selection for male aggression
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Project description:High frequency of physical aggression is the central feature of severe conduct disorder and is associated with a wide range of social, mental and physical health problems. We have previously tested the hypothesis that differential DNA methylation signatures in peripheral T cells are associated with a chronic aggression trajectory in males. Despite the fact that sex differences appear to play a pivotal role in determining the development, magnitude and frequency of aggression, most of previous studies focused on males, so little is known about female chronic physical aggression. We therefore tested here whether or not there is a signature of physical aggression in female DNA methylation and, if there is, how it relates to the signature observed in males. Genome-wide promoter methylation profiles of T cell DNA from adult males and females on a Chronic Physical Aggression (CPA) trajectory during childhood and adolescence were compared to adults on a normative physical aggression trajectories (NPA). Each sample was bisulphite converted gDNA pooled in equimolar amounts. Three different pools of genomic DNA were made per group: male CPA (2 or 3 different subjects per pool), male NPA (4 different subjects per pool), female CPA (2 different subjects per pool) and female NPA (4 or 5 different subjects per pool) . The Illumina Infinium 450k Human DNA methylation Beadchip was used to obtain DNA methylation profiles of the 2 groups in both sex.
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Project description:We generated 4 separate subpopulations of selected flies from 1 starting population of a mixture of Canton-S flies. Two of the populations (AggrI and AggrII) were selected for increased aggression by picking males from a population cage that engaged in the most intense fighting (known as escalation behavior). Thirty males were selected every generation (from a total of 120 males per cage) per line and mated with random virgin females from that same generation. Two control populations (NeutrI and NeutrII) were selected by picking random males from the population cage after 15-30 aggressive males were removed. After 21 generations of selection males from the Aggr lines were dramatically more aggressive than males from the Neutr lines. The Neutr lines did not significantly differ from the starting population although a trend of decreased aggression was visible. Experiment Overall Design: Four populations were analyzed. Two were selected for increased aggression and two were reference groups, selected for a decrease but with no significant effect.
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