Project description:Gene expression profiles were compared between wild-type and Jmjd3-/- embryos at E9.5 when mRNAs of posterior Hox genes are upregulated, because Jmjd3-/- mice embryos showed homeotic transformation. As expected, mRNAs of Hoxd10 and Hod11 were decreased in Jmjd3-/- embryos. Moreover, gene onthology (GO) analyses identified down-regulated genes (FC>1.5) in Jmjd3-/- embryos were “multicellular organismal development” and “developmental process”.
Project description:Gene expression profiles were compared between wild-type and Jmjd3-/- embryos at E9.5 when mRNAs of posterior Hox genes are upregulated, because Jmjd3-/- mice embryos showed homeotic transformation. As expected, mRNAs of Hoxd10 and Hod11 were decreased in Jmjd3-/- embryos. Moreover, gene onthology (GO) analyses identified down-regulated genes (FC>1.5) in Jmjd3-/- embryos were M-bM-^@M-^\multicellular organismal developmentM-bM-^@M-^] and M-bM-^@M-^\developmental processM-bM-^@M-^]. Gene expressions in wild-type and Jmjd3-/- posterior half of embryos at E9.5 were examined. Two independent RNA samples of each genotypes were used to verify the reproducibility of the microarray analyses.
Project description:The aim of the study was to investigate whether the trefoil peptide genes, in concerted action with a miRNA regulatory network, were contributing to nutritional maintrenance. Using a Tff2 knock-out mouse model, 48 specific miRNAs were noted to be significantly deregulated when compared to the wild type strain.
Project description:The aim of the study was to investigate whether the trefoil peptide genes, in concerted action with a miRNA regulatory network, were contributing to nutritional maintrenance. Using a Tff3 knock-out mouse model, 21 specific miRNAs were noted to be significantly deregulated when compared to the wild type strain.
Project description:Jmjd3 is critical for proper M2 macropahge inducution in response to M-CSF and showed defects in response to LPS. We used microarrays to examine gene expression profiles in wild-type and Jmjd3-/- M-CSF-derived macrophages.
Project description:To characterize the genetic basis of hybrid male sterility in detail, we used a systems genetics approach, integrating mapping of gene expression traits with sterility phenotypes and QTL. We measured genome-wide testis expression in 305 male F2s from a cross between wild-derived inbred strains of M. musculus musculus and M. m. domesticus. We identified several thousand cis- and trans-acting QTL contributing to expression variation (eQTL). Many trans eQTL cluster into eleven ‘hotspots,’ seven of which co-localize with QTL for sterility phenotypes identified in the cross. The number and clustering of trans eQTL - but not cis eQTL - were substantially lower when mapping was restricted to a ‘fertile’ subset of mice, providing evidence that trans eQTL hotspots are related to sterility. Functional annotation of transcripts with eQTL provides insights into the biological processes disrupted by sterility loci and guides prioritization of candidate genes. Using a conditional mapping approach, we identified eQTL dependent on interactions between loci, revealing a complex system of epistasis. Our results illuminate established patterns, including the role of the X chromosome in hybrid sterility.
