Project description:When food was removed for 6 hours, 43 genes, including Angptl4, changed their expression more than two-fold. Food was removed from young rats at 07:30. Six hours later, samples of epididymal adipose tissue was taken for analysis.
Project description:Chlorophyll was removed from the veins of the C3 plant Arabidopsis by combining enhancer trap and RNAi approaches. Three independent transgenic lines were created. These were each compared to the parent line, J1511, in a microarray experiment.
Project description:SAMP8 mice serve as an accelerated aging model characterized by inflammation and neurological memory deficits, in contrast to their control SAMR1 counterparts. To investigate the role of microglia in aging, we conducted a comprehensive analysis of microglial heterogeneity using CITE-seq. CD11b positive cells were extracted from cerebellum and olfactory bulb-removed brains at key time points: 2 months, 5 months, and 9 months of age.
Project description:Purpose: This study is designed to identify genes and processes that are differentially regulated in corn when it is grown with or without weeds through the entire critical weed free period (to V8) or when weeds were removed early in the critical weed free period (at V4) and the plants were allowed to recover until V8. Methods: Corn was grown as described above in field plots near Brookings SD in 2007 and 2008 and RNA was extracted from the top-most leaf tips from four plants per treatment plot. Unidirectional cDNA illumina sequencing libraries were constructed for each sample (pooled leaf tips from the given plot), and were sequenced (some samples were paired end sequenced and some were single end sequenced - all 100 bases for PE and SE reads), quality trimmed, and analyzed using the Tuxedo suite of programs for SE reads of the forward read libraries for each sample. Results: We identified a small number of genes that were differentially expressed in both years. More importantly, gene set enrichment analysis of the data determined that weeds, when present through the critical weed free period impacted phytochrome signaling, defense responses, photosynthetic processes, oxidative stress responses, and various hormone signaling processes. When weeds were removed at V4 and the plants allowed to recover until V8, the weeds still imprinted impacts on phytochrome signaling, oxidative stress, and defense responses. Thus, it appears that weeds presence through the early portion of the critical weed free period, even after removal, induced processes that reduce corn growth and yield that lasted at least through V8. Conclusions: This study represents the first investigation of the impact of the lasting effects of weeds during the early critical weed free period on the transcriptome of corn, and provides additional data on the impact of weeds through the critical weed free period that augments and confirms much of what was observed in similar microarray studies.
