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Breed gene expression differences in adult parent chicken with Affymetrix Chicken Gene Chip

ABSTRACT: Heritable epigenetic variation in wild and domesticated chickens. Original processed data are available in the archive: http://www.ebi.ac.uk/arrayexpress/files/E-MTAB-645/E-MTAB-645.additional.zip

ORGANISM(S): Gallus gallus

SUBMITTER: Daniel Natt

PROVIDER: E-MTAB-645 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Transmission of stress-induced learning impairment and associated brain gene expression from parents to offspring in chickens.

Lindqvist Christina C Janczak Andrew M AM Nätt Daniel D Nätt Daniel D Baranowska Izabella I Lindqvist Niclas N Wichman Anette A Lundeberg Joakim J Lindberg Johan J Torjesen Peter A PA Jensen Per P

PloS one 20070411 4

<h4>Background</h4>Stress influences many aspects of animal behaviour and is a major factor driving populations to adapt to changing living conditions, such as during domestication. Stress can affect offspring through non-genetic mechanisms, but recent research indicates that inherited epigenetic modifications of the genome could possibly also be involved.<h4>Methodology/principal findings</h4>Red junglefowl (RJF, ancestors of modern chickens) and domesticated White Leghorn (WL) chickens were ra ...[more]

PMID: 17426812

Publication: 1/6

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Breed gene expression differences in young offspring chicken with Affymetrix Chicken Gene Chip

Project description:Heritable epigenetic variation in wild and domesticated chickens. Original processed data are available in the archive: http://www.ebi.ac.uk/arrayexpress/files/E-MTAB-644/E-MTAB-644.additional.zip

2011-05-10 | E-MTAB-644 | biostudies-arrayexpress

Proteomic analysis of protein profile of blood serum of patients with autism children

Project description:A comparative panoramic mass spectrometric analysis of serum samples from three families with children with autistic disorders was carried out. The total number of examined samples was nine, including four control samples from healthy parents, and five samples from autistic children.

2016-11-01 | PXD005193 | Pride

Maternal western diet primes susceptibility to hepatic inflamation in adult male mouse offspring

Project description:Background & Aims: The influences of the maternal diet during gestation has been suggested to be involved in the development of different aspects of the metabolic syndrome. In our mouse model we characterised the role of maternal western diet in the development of non-alcoholic fatty liver disease (NAFLD) in the offspring. Methods: Female mice were fed either a western (W) or low-fat control (L) semi-synthetic diet before and during gestation and lactation. At weaning, male offspring were assigned either the W or the L diet, generating four experimental groups: WW, WL, LW and LL offspring. Biochemical, histological and epigenetic indicators were investigated at 29 weeks of age. Results: Male offspring exposed to prenatal western style diet and to a post-weaning W diet (WW) showed hepatomegaly combined with increased hepatic cholesterol and triglycerides accumulation, compared to LW offspring. This was associated with up-regulation of de novo lipid synthesis and dysregulation of beta oxidation and lipid storage. Elevated hepatic transaminases and increased expression of Tnfa, Cd11, Mcp1 and Tgfb underpin the severity of liver injury. Histological analysis supported the presence of steatohepatitis in the WW offspring. In addition alterations in DNA methylation in key metabolic genes (Ppara, Insig, Fasn) were detected. Conclusion: Maternal dietary fat intake during critical developmental phases programs susceptibility to liver disease in mouse offspring. This was mediated by shifts in lipid metabolism and inflammatory response. Long lasting epigenetic changes may underlie this dysregulation 4 groups of 6 male mouse were analysed , 1 experimental and 1 biological outlier was excluded , so n=6,5,5,6 in the 4 groups (LL,LW,WL,WW)

2014-01-21 | E-GEOD-44901 | biostudies-arrayexpress

Breed DNA-methylation in young offspring chicken with custom NimbleGen tiling array

Project description:To analyze DNA-methylation differences between two chicken breeds

2011-05-19 | E-MTAB-649 | biostudies-arrayexpress

Breed DNA-methylation in adult parent chicken with custom NimbleGen tiling array

Project description:To analyze DNA-methylation differences between two chicken breeds

2011-05-19 | E-MTAB-648 | biostudies-arrayexpress

Genome-wide DNA methylation profiling reveals epigenetic changes in the rat nucleus accumbens associated with cross-generational effects of adolescent THC exposure

Project description:Drug exposure during critical periods of development is known to have lasting effects, increasing one’s risk for developing mental health disorders. Emerging evidence has also indicated the possibility for drug exposure to even impact subsequent generations. Our previous work demonstrated that adolescent exposure to Δ9-tetrahydrocannabinol (THC), the main psychoactive component of marijuana (Cannabis sativa), in a Long-Evans rat model affects reward-related behavior and gene regulation in the subsequent (F1) generation unexposed to the drug. Questions, however, remained regarding potential epigenetic consequences. In the current study, using the same rat model, we employed Enhanced Reduced Representation Bisulfite Sequencing to interrogate the epigenome of the nucleus accumbens, a key brain area involved in reward processing. This analysis compared 16 animals with parental-THC exposure and 16 without to characterize relevant systems-level changes in DNA methylation. We identified 1,027 differentially methylated regions (DMRs) associated with parental THC exposure in F1 adults, each represented by multiple CpGs. These DMRs fell predominantly within introns, exons, and intergenic intervals, while showing a significant depletion in gene promoters. From these, we identified a network of DMR-associated genes involved in glutamatergic synaptic regulation, which also exhibited altered mRNA expression in the nucleus accumbens. These data provide novel insight into drug-related cross-generational epigenetic effects, and serve as a useful resource for investigators to explore novel neurobiological systems underlying drug abuse vulnerability. Study consisted of a total of 32 F1 individuals (Long-Evan rats); 16 animals (8 female, 8 male) were offspring from THC-exposed parents, and the remaining 16 animals (8 female, 8 male) were offspring from saline-exposed parents ("controls"; "VEH-exposed").

2015-06-19 | E-GEOD-69984 | biostudies-arrayexpress

Genome-wide copy number variation in Chinese schizophrenia trios

Project description:To reveal the risk CNVs of SZ in Chinese population, we recrited and enrolled 100 Chinese family trios with a schizophrenia affected children and both of their father and mother. SZ was diagnosed according to DSM-IV criteria by two independent psychiatrists. There gDNA we screen the genome-wide CNV using Agilent SurePrint G3 Human CGH Microarray Kit (1x1M) and Agilent sex-matched human DNA was used as reference. The CNV were called by ADM-2 statistical algorithms with a threshold of 6.0. We compared the burden of large rare CNVs and found that SZ probands carried more duplications and less deletions. Furtherly, we performed familial inheritance analysis of transmission disequilibrium and de novo CNV detection, validated several associated CNV loci with SZ susceptibility and also identify eight novel loci conferring risk of SZ

2021-10-01 | E-MTAB-8075 | biostudies-arrayexpress

Transcription profiling of chickens exposed to chronic unpredictable light or predictable light and their offspring

Project description:A 14k cDNA microarray was used to examine gene expression difference in hypothalamus of chickens exposed to a chronic unpredictable light (UL) rhythm, in relation to chickens living under predictable light (PL). Offspring of UL and PL parents were thereafter compared in the same manner, with the only exception that both offspring groups lived under the PL treatment, hence investigating the effect of having a parent living under unpredictable light.

2009-07-28 | E-MEXP-2268 | biostudies-arrayexpress

Expression data from WT (Columbia) and pifq (pif1pif3pif4pif5) mutant Arabidopsis seedlings

Project description:Plants respond to changes in the red:far red ratio (R:FR) of incident light. A reduction in this ratio (increase in FR) results in the Shade Avoidance Response (SAR) with associated changes in gene expression. The Phyotchrome-Interacting Factors (PIFs) are bHLH transcription factors known to be involved in the SAR. An analysis of changes in gene expression in WT and quadruple pif1pif3pif4pif5 (pifq; Leivar et al., 2008 (PMID 19920208)) mutant seedlings in response to an increase in FR should identify primary targets of PIF signaling. We used microarrays to examine the SAR in WT (Columbia) and pifq mutant Arabidopsis seedlings. Arabidopsis WT and pifq mutant seeds were plated on GM medium without sucrose at room temperature. During this procedure, the seeds were routinely exposed to white light (WL) for a total of 1.5 hours after imbibition. Seeds were then stratified for 5 days at 4ºC in darkness, and then grown in WL (19 umol/m2/s, R/FR ratio of 6.48) for 2 days at 21°C (WL0 samples). Two-day-old WL-grown seedlings were then maintained in the same fluence rate of WL supplemented with far-red light (WL-FR, R/FR ratio of 0.006) for 1 (FR1), 3 (FR3) or 24 (FR24) hours before harvesting. Control seedlings were also maintained in parallel in the same fluence rate of WL for 24h (WL24) before harvesting. Three different biological replicates of each treatment were grown separately and extracted, processed, and analyzed independently.

2012-08-01 | E-GEOD-28297 | biostudies-arrayexpress

Essential roles for the splicing regulator nSR100/SRRM4 during nervous system development

Project description:Alternative splicing (AS) generates vast transcriptomic complexity in the vertebrate nervous system. However, the extent to which trans-acting splicing regulators and their target AS regulatory networks contribute to nervous system development is not completely understood. To address these questions, we have generated mice lacking the vertebrate- and neural-specific Ser/Arg-repeat related protein of 100 kDa (nSR100/SRRM4). Loss of nSR100 impairs development of the central and peripheral nervous systems, in part by disrupting neurite outgrowth, cortical layering in the forebrain, and axon guidance in the corpus callosum. Accompanying these developmental defects are widespread changes in AS that primarily result in shifts to non-neural patterns for different classes of splicing events. The main component of the altered AS program comprises 3-27 nucleotide neural microexons, an emerging class of highly conserved alternative splicing event associated with the regulation of protein interaction networks in developing neurons and neurological disorders. Remarkably, inclusion of a 6-nucleotide nSR100-activated microexon in Unc13b transcripts is sufficient to rescue a neuritogenesis defect in nSR100 mutant primary neurons. These results thus reveal critical in vivo neurodevelopmental functions of nSR100, and they further link these functions to a conserved program of neural microexon splicing. mRNA profiles of mouse control or nSR100/Srrm4 KO cortex or hippocampus using high-throughput sequencing data.

2015-04-14 | E-GEOD-65818 | biostudies-arrayexpress

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