Project description:osteocyte is the mechanosensor in bone, taking up pivotal position in mediating the mechano-induced bone remodeling. Dimagnetic levitation has been used to stimulating a reduced gravity environment for studing the effects of changed gravity to different organisms.we constructed a superconducting magnet based platform with a large gradient high magnetic field(LG-HMF),which can provide three apparent gravity levels (μ-g,1-g and 2-g). osteocytes are sensetive to gravitational changes, our aim is to explore what responses do osteocytes exists under different gravitational environments in gene level, together with filtering the up- and down-regulated genes.
Project description:osteocyte is the mechanosensor in bone, taking up pivotal position in mediating the mechano-induced bone remodeling. Dimagnetic levitation has been used to stimulating a reduced gravity environment for studing the effects of changed gravity to different organisms.we constructed a superconducting magnet based platform with a large gradient high magnetic field(LG-HMF),which can provide three apparent gravity levels (?-g,1-g and 2-g). osteocytes are sensetive to gravitational changes, our aim is to explore what responses do osteocytes exists under different gravitational environments in gene level, together with filtering the up- and down-regulated genes. mouse osteocyte-like cell line MLO-Y4 were cultured under three different apparent gravity levels (?-g,1-g and 2-g) and normal gravity environment (control) for 48 hours, after which total RNA was extracted . And then RNA samples hybridized on affymetrix microarrays to obtain the whole genome expression profiles. the aim that we selected 48 hours as the cell culture time was to make a comparison with our previous researches of osteocytes.
Project description:Comparison of gene expression profiles from Mus musculus brain (hemisphere) of animals kept in standard environment and enriched environment. The RNA-seq data comprise 4 groups: 2 age groups, each w/ and w/o enriched environment. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
Project description:Comparison of gene expression profiles from Mus musculus brain (hippocampus) of animals kept in standard environment and enriched environment. The RNA-seq data comprise 4 groups: 2 age groups, each w/ and w/o enriched environment. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
Project description:Comparison of gene expression profiles from Mus musculus brain (hippocampus) of animals kept in standard environment and enriched environment. The RNA-seq data comprise 4 groups: 2 age groups, each w/ and w/o enriched environment. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
Project description:Comparison of gene expression profiles from Mus musculus brain of animals kept in standard environment and enriched environment. The RNA-seq data comprise 4 groups: 2 age groups, each w/ and w/o enriched environment. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
Project description:Introgressed variants from other species can be an important source of genetic variation because they may arise rapidly, can include multiple mutations on a single haplotype, and have often been pretested by selection in the species of origin. Although introgressed alleles are generally deleterious, several studies have reported introgression as the source of adaptive alleles-including the rodenticide-resistant variant of Vkorc1 that introgressed from Mus spretus into European populations of Mus musculus domesticus. Here, we conducted bidirectional genome scans to characterize introgressed regions into one wild population of M. spretus from Spain and three wild populations of M. m. domesticus from France, Germany, and Iran. Despite the fact that these species show considerable intrinsic postzygotic reproductive isolation, introgression was observed in all individuals, including in the M. musculus reference genome (GRCm38). Mus spretus individuals had a greater proportion of introgression compared with M. m. domesticus, and within M. m. domesticus, the proportion of introgression decreased with geographic distance from the area of sympatry. Introgression was observed on all autosomes for both species, but not on the X-chromosome in M. m. domesticus, consistent with known X-linked hybrid sterility and inviability genes that have been mapped to the M. spretus X-chromosome. Tract lengths were generally short with a few outliers of up to 2.7 Mb. Interestingly, the longest introgressed tracts were in olfactory receptor regions, and introgressed tracts were significantly enriched for olfactory receptor genes in both species, suggesting that introgression may be a source of functional novelty even between species with high barriers to gene flow.
Project description:Comparison of gene expression profiles from Mus musculus brain (hemisphere) at age 5 months following enriched environment. The RNA-seq data comprise 1 groups. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)