Project description:Different fuctional genes have different expression levels in various tissues. Along with the seasons changing, expression level also changes. One-year expression level for functional genes can be indicated by the four seasonal samples and respective time-course change can also be detected. We use microarry chips to study the expression levels for specific genes and explore new functional genes involved in secondary metabolism Samples from four tissues (bud, root, xylem and phloem) were collected in different seasons in one year. April and May were the months in spring for collecting samples. June and July were the months in summer for collecting samples. September and October were the months in autumn for collecting samples. December was the month for collecting samples in winter. RNA from each sample was extracted for hybridization.

2014-03-20 | E-GEOD-56023 | biostudies-arrayexpress

Microarray analysis of Bay-0 x Sha recombinant inbred lines at four seed germination stages

Project description:Seed germination is characterized by a constant change of gene expression across different time points. These changes are related to specific processes, which eventually determine the onset of seed germination. To get a better understanding on the regulation of gene expression during seed germination, we measured gene expression levels of Arabidopsis thaliana Bay x Sha recombinant inbred lines (RILs) at four important seed germination stages (primary dormant, after-ripened, six-hour after imbibition, and radicle protrusion stage) using. We mapped the eQTL of the gene expression and the result displayed the distinctness of the eQTL landscape for each stage. We found several eQTL hotspots across stages associated with the regulation of expression of a large number of genes. Together, we have revealed that the genetic regulation of gene expression is dynamic along the course of seed germination.

2020-06-24 | E-MTAB-9080 | biostudies-arrayexpress

Antarctic Marine Bacterioplankton Metagenome

Project description:Metagenome collected from Antarctic marine bacterioplankton

| PRJNA30543 | ENA

Comparison of the Global Gene Expression Profiles in the Bovine Endometrium between Summer and Autumn Seasons

Project description:To examine the difference of the endometrial conditions in the cows between on summer and autumn seasons, gene expression profiles were compared. The expressions of 268 genes were significantly higher in the endometrium collected on summer than those on autumn, whereas 369 genes were lower (P<0.05 or lower). Transcripts of GP2 and NTS were more abundant in the endometrium of summer than those of autumn (P<0.05). In contrast, the mRNA expressions of CDH1 and HSPH1 were lower in the endometrium of summer seasons (P<0.1). Collectively, the different gene expression profiles may contribute to functional differences of endometrium between the summer and autumn seasons, and GP2 and NTS may have a relevance to endometrial deficiency that cause infertility of cows on summer seasons.

2015-02-19 | GSE66057 | GEO

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