The aim of this study was to analyze potential brown planthopper (BPH) resistant genes in Rathu Heenati (RHT) by Affymetrix whole rice genome array,BPH susceptible and resistant rice varieties of TN1Taichung Native 1as control. All the resistant related genes derived from RHT will be analyzed according to the SSR markers interval flanked on the chromosome 3, 4, 6 and 10. It will be benefit to the gene clone and marker assistant breeding for Bph3 gene in the near future.
Microarray analysis of broad-spectrum resistance derived from an indica cultivar Rathu Heenati.
Specimen part, Time
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Profiles of epigenetic histone post-translational modifications at type 1 diabetes susceptible genes.
Specimen part, Disease, Cell line
View SamplesThe aim of this study is to identify genes implicated in the early steps of the autoimmune process, prior to inflammation in type 1 diabetes. Early Insulin AutoAntibodies (E-IAA) have been used as subphenotypic marker to select individual animals as type 1 diabetes prone and to compare gene expression patterns with insulin autoantibody negative NOD.
Early over expression of messenger RNA for multiple genes, including insulin, in the Pancreatic Lymph Nodes of NOD mice is associated with Islet Autoimmunity.
Age
View SamplesBoth genetic and environmental factors are implicated in Type 1 Diabetes (T1D). Since environmental factors can trigger epigenetic changes, we hypothesized that variations in histone posttranslational modifications (PTMs) at the promoter/enhancer regions of T1D susceptible genes may be associated with T1D. We therefore evaluated histone PTM variations at known T1D susceptible genes in blood cells from T1D patients versus healthy non-diabetic controls, and explored their connections to T1D. We used the chromatin-immunoprecipitation-linked-to-microarray approach to profile key histone PTMs, including H3-lysine-4 trimethylation (H3K4me3), H3K27me3, H3K9me3, H3K9 acetylation (H3K9Ac) and H4K16Ac at genes within the T1D susceptible loci in lymphocytes, and H3K4me3, H3K9me2, H3K9Ac and H4K16Ac at the IDDM1 region in monocytes of T1D patients and healthy controls separately. We screened for potential variations in histone PTMs using computational methods to compare datasets from T1D and controls. Interestingly, we observed marked variations in H3K9Ac levels at the upstream regions of HLA-DRB1 and HLA-DQB1 within the IDDM1 locus in T1D monocytes relative to controls. Additional experiments with THP-1 monocytes demonstrated increased expression of HLA-DRB1 and HLA-DQB1 in response to interferon- and TNF-treatment that were accompanied by changes in H3K9Ac at the same promoter regions as that seen in the patient monocytes. These results suggest that the H3K9Ac status of HLA-DRB1 and HLA-DQB1, two genes highly associated with T1D, may be relevant to their regulation and transcriptional response towards external stimuli. Thus, the promoter/enhancer architecture and chromatin status of key susceptible loci could be important determinants in their functional association to T1D susceptibility.
Profiles of epigenetic histone post-translational modifications at type 1 diabetes susceptible genes.
Specimen part, Disease
View SamplesWe report high throughput transcriptomic profiling with RNA-Sequencing (RNA-Seq) to uncover network responses in human THP-1 monocytes treated with high glucose (HG). Overall design: Examination of differential expression between normal and high glucose condition in THP1 cells.
RNA-sequencing analysis of high glucose-treated monocytes reveals novel transcriptome signatures and associated epigenetic profiles.
Specimen part, Subject
View SamplesTo gain global insights into the transcriptomic response associated with MIR148A family knockout, we performed RNA sequencing (RNA-Seq) on hESC-differentiated cells on day 4 of cardiac differentiation for both WT and MIR148A-TKO groups. RNA-Seq analysis identified a total of 1837 differentially expressed genes in MIR148A-TKO and wild-type hESC-derived cells on day 4 of cardiac differentiaton. Furthermore, Gene Ontology enrichment analysis indicated knockout of all MIR148A family members inhibited lateral mesodermal and cardiac differentiation. Overall design: RNA-seq analysis of cells derived from both the MIR148A-TKO and wild-type hESCs on day 4 of cardiac differentiation.
MIR148A family regulates cardiomyocyte differentiation of human embryonic stem cells by inhibiting the DLL1-mediated NOTCH signaling pathway.
Specimen part, Subject
View SamplesThe mammary epithelia are mainly composed of two distinct lineages, the basal and luminal cells. Due to the limitation of traditional transcriptome analysis of bulk mammary cells, the hierarchy and heterogeneity of mammary cells within these two lineages remain unclear. Hence, we have performed single cell RNA-seq on mammary epithelial cells of virgin and pregnant mice. Based on the respective gene expression profiles, we found mammary cells are highly heterogeneous and can be classified into distinct subgroups with signature markers. Besides, we identified and verified a rare CDH5+ subpopulation of basal lineage as quiescent mammary gland stem cells (MaSCs). Furthermore, knockout of Cdh5 in mouse mammary cells via CRISPR-Cas9 significantly impairs cell stemness and promotes the cell differentiation to luminal lineage. In addition, via pseudo-temporal analysis, we reconstructed the mammary epithelia developmental trajectory and revealed the relevant changes of gene expression and biological functions of mammary cells along the developmental process. Overall design: Basal and luminal cells form mammary glands of virgin or pregnant (at day 12) FVB mice were FACS-purified for single cell RNA-seq.
Single-cell RNA-Seq reveals cell heterogeneity and hierarchy within mouse mammary epithelia.
Specimen part, Subject
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Susceptibility to glaucoma: differential comparison of the astrocyte transcriptome from glaucomatous African American and Caucasian American donors.
No sample metadata fields
View SamplesTo determine whether optic nerve head astrocytes, a key cellular component of glaucomatous neuropathy, exhibit differential gene expression in primary culture of astrocytes from African American donors with or without glaucoma, compared to astrocytes from Caucasian American donors with or without glaucoma.
Susceptibility to glaucoma: differential comparison of the astrocyte transcriptome from glaucomatous African American and Caucasian American donors.
No sample metadata fields
View SamplesDuring the human B cell (Bc) recall response, rapid cell division results in multiple Bc subpopulations. The TLR-9 agonist CpG oligodeoxynucleotide, combined with cytokines, causes Bc activation and division in vitro and increased CD27 surface expression in a sub-population of Bc. We hypothesized that the proliferating CD27lo subpopulation, which has a lower frequency of antibody-secreting cells (ASC) than CD27hi plasmablasts, provides alternative functions such as cytokine secretion, costimulation, or antigen presentation. We performed genome-wide transcriptional analysis of CpG activated Bc sorted into undivided, proliferating CD27lo and proliferating CD27hi subpopulations. Our data supported an alternative hypothesis, that CD27lo cells are a transient pre-plasmablast population, expressing genes associated with Bc receptor editing. Undivided cells had an active transcriptional program of non-ASC B cell functions, including cytokine secretion and costimulation, suggesting a link between innate and adaptive Bc responses. Transcriptome analysis suggested a gene regulatory network for CD27lo and CD27hi Bc differentiation.
Functionally Distinct Subpopulations of CpG-Activated Memory B Cells.
Specimen part
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