Project description:We constructed one-cell stage embryos by maternal pronuclear (mPN) transfer having B6 ooplasm, B6 paternal PN (pPN), and either B6 or C3H mPN (BBB and BCB, respectively). We collected embryos of each type that were either treated (BBB+a, BCB+a) or untreated with α-amanitin (BBB, BCB) at the two-cell stage for microarray analysis. Comparison of the transcriptomes of these different kinds of embryos revealed genes for which expression differs according to maternal PN strain of origin, and the α-amanitin data revealed which of these differences is due to gene transcription, as opposed to any transcription-independent differences attributable to ooplasm-derived maternal mRNA pools. There are 4 replicates for each kind/treatment two-cell embryos (BBB, BCB, BBB+a, BCB+a).
Project description:We collected whole genome testis expression data from hybrid zone mice. We integrated GWAS mapping of testis expression traits and low testis weight to gain insight into the genetic basis of hybrid male sterility.
Project description:PURPOSE: To provide a detailed gene expression profile of the normal postnatal mouse cornea. METHODS: Serial analysis of gene expression (SAGE) was performed on postnatal day (PN)9 and adult mouse (6 week) total corneas. The expression of selected genes was analyzed by in situ hybridization. RESULTS: A total of 64,272 PN9 and 62,206 adult tags were sequenced. Mouse corneal transcriptomes are composed of at least 19,544 and 18,509 unique mRNAs, respectively. One third of the unique tags were expressed at both stages, whereas a third was identified exclusively in PN9 or adult corneas. Three hundred thirty-four PN9 and 339 adult tags were enriched more than fivefold over other published nonocular libraries. Abundant transcripts were associated with metabolic functions, redox activities, and barrier integrity. Three members of the Ly-6/uPAR family whose functions are unknown in the cornea constitute more than 1% of the total mRNA. Aquaporin 5, epithelial membrane protein and glutathione-S-transferase (GST) omega-1, and GST alpha-4 mRNAs were preferentially expressed in distinct corneal epithelial layers, providing new markers for stratification. More than 200 tags were differentially expressed, of which 25 mediate transcription. CONCLUSIONS: In addition to providing a detailed profile of expressed genes in the PN9 and mature mouse cornea, the present SAGE data demonstrate dynamic changes in gene expression after eye opening and provide new probes for exploring corneal epithelial cell stratification, development, and function and for exploring the intricate relationship between programmed and environmentally induced gene expression in the cornea. Keywords: other
Project description:We constructed one-cell stage embryos by maternal pronuclear (mPN) transfer having B6 ooplasm, B6 paternal PN (pPN), and either B6 or C3H mPN (BBB and BCB, respectively). We collected embryos of each type that were either treated (BBB+a, BCB+a) or untreated with α-amanitin (BBB, BCB) at the two-cell stage for microarray analysis. Comparison of the transcriptomes of these different kinds of embryos revealed genes for which expression differs according to maternal PN strain of origin, and the α-amanitin data revealed which of these differences is due to gene transcription, as opposed to any transcription-independent differences attributable to ooplasm-derived maternal mRNA pools.
Project description:Comparison of gene expression profiles from Mus musculus skin of two age groups. The RNA-seq data comprise 2 groups at ages: 2 and 9 months. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
Project description:We collected whole genome testis expression data from hybrid zone mice. We integrated GWAS mapping of testis expression traits and low testis weight to gain insight into the genetic basis of hybrid male sterility. Gene expression was measured in whole testis from males aged 62-86 days. Samples include 190 first generation lab-bred male offspring of wild-caught mice from the Mus musculus musculus - M. m. domesticus hybrid zone.