Ontology highlight
ABSTRACT:
PROVIDER: PRJEB38763 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| rsid_unassigned_snps_2.vcf.gz | Vcf | |||
| rsid_unassigned_snps_2.vcf.gz.tbi | Vcf |
Items per page: 5 1 - 2 of 2 |
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Project description:Using heterogeneous stock (HS) rats, we have identified a region on rat chromosome 1 that maps multiple diabetic traits. We sought to use global expression analysis to determine if genes within this region are differentially expressed between HS rats with normal glucose tolerance and those with glucose intolerance
2014-09-18 | GSE57117 | GEO
Project description:Using heterogeneous stock (HS) rats, we have identified a region on rat chromosome 1 that maps multiple diabetic traits. We sought to use global expression analysis to determine if genes within this region are differentially expressed between HS rats with normal glucose tolerance and those with glucose intolerance
2014-09-18 | GSE54935 | GEO
Project description:These Heterogeneous Stock (HS) rats are derived from eight inbred progenitors through more than 60 generations of outbreeding. As a result they are fine-grained mosaics of the founder genomes, and well suited for high-resolution genetic mapping of complex traits. This experiment provides dense genotyping data for 1407 HS rats, 15 duplicates, and the 8 progenitors. From these data, each HS rat chromosome can be reconstructed as a mosaic of progenitor haplotypes. Together with phenotype and sequence data available elsewhere (DOI:10.1038/ng.2644), these data allowed fine-mapping of 160 complex traits, and identified causal genes at the QTLs. The sequences of the progenitors are available from ENA (study accession PRJEB3358, http://www.ebi.ac.uk/ena/data/view/PRJEB3358). A series of supporting data files are available from http://www.ebi.ac.uk/arrayexpress/files/E-MTAB-2332 , with an accompanying list (suppl_files_description.xlsx) describing each supporting file.
2014-02-28 | E-MTAB-2332 | biostudies-arrayexpress
Project description:Using heterogeneous stock (HS) rats, we have identified a region on rat chromosome 1 that maps multiple diabetic traits. We sought to use global expression analysis to determine if genes within this region are differentially expressed between HS rats with normal glucose tolerance and those with glucose intolerance HS rats were euthanized at 17 weeks of age and tail sample was taken. Genomic DNA was extracted from tail of 23 HS rats with glucose intolerance and 23 HS rats with normal glucose. The Affymetrix 10K SNP array was used to genotype these animals.
2014-09-18 | E-GEOD-57117 | biostudies-arrayexpress
Project description:Using heterogeneous stock (HS) rats, we have identified a region on rat chromosome 1 that maps multiple diabetic traits. We sought to use global expression analysis to determine if genes within this region are differentially expressed between HS rats with normal glucose tolerance and those with glucose intolerance HS rats were euthanized at 17 weeks of age and liver was immediately frozen in liquid nitrogen. RNA was extracted from liver of 23 HS rats with glucose intolerance and 23 HS rats with normal glucose. The Affymetrix 230_2 array was used to probe transcript abundance levels.
2014-09-18 | E-GEOD-54935 | biostudies-arrayexpress
Project description:We measured amygdala gene expression in 205 Heterogeneous Stock (N:HS) rats. These animals were part of a larger cohort that were extensively phenotyped and genotyped and originally published in PMID: 23708188, although the gene expression data here were not included in that study.
2023-04-03 | E-MTAB-12693 | biostudies-arrayexpress
Project description:Elevated intraocular pressure (IOP) is influenced by environmental and genetic factors. It is associated with 23 multiple disease processes with primary open angle glaucoma (POAG) being the most prevalent. Due to its 24 complex, multifactorial nature, genetic predisposition is not completely understood thus, there is an urgent 25 need for additional investigations into the genetic regulation of IOP. Heterogenous stock (HS) outbred rats are 26 a multigenerational outbred population derived from eight inbred strains that have been fully sequenced. This 27 population is ideal for genome-wide association studies (GWAS) due to the accumulated recombinations 28 among well-defined haplotypes, the relatively high allele frequencies, access to a large collection of tissue 29 samples, and the large allelic effect size compared to human studies. The purpose of this study was to identify 30 genetic loci underlying elevated IOP using HS rats. Both male and female HS rats (N=1,812) were used in the 31 study. Genotyping-by-sequencing was used to obtain ~3.5M single nucleotide polymorphisms from each 32 individual. We performed a GWAS for the IOP phenotype using a linear mixed model and used permutation to 33 determine a genome-wide significance threshold. We also estimated SNP heritabilities. Our GWAS results 34 identified three genome-wide significant loci for elevated IOP on chromosomes 1, 5, and 16. These loci 35 contained 7 genes in total including Tyr, Grm5, Ctsc, Rab38, MGC94199, Plekhf2, and Csmd1. We also 36 mapped expression quantitative trait loci (eQTLs) in HS rat eye tissue and discovered a cis-eQTL for Ctsc 37 among our significant loci. Tyr is the only gene that has been previously associated with human IOP. This 38 study highlights the efficacy of HS rats for investigating the genetics of elevated IOP and identifying potential 39 candidate genes for future functional testing. In summary, GWAS using HS rats is a powerful method for 40 identifying genome regions that harbor variants responsible for the variation in quantitative traits, such as IOP. 41 Additional studies are ongoing to further narrow the list of candidate genes in these intervals.
2022-04-25 | GSE201236 | GEO