Project description:CDC5 is a conserved DNA-binding protein that is required for development and immunity. It promotes the accumulation of microRNAs (miRNAs) and endogenous small interfering RNAs (siRNAs), which repress gene expression. In this project, we aim to determine its global effect of on the accumulation of miRNAs and siRNAs. We compared the small RNA profile in cdc5-1 with that in Col (Wild-type, WT). Small RNA libraries prepared from inflorescences of cdc5-1 and Col was subjected to Illumina deep sequencing analyses. The results show that many miRNAs and siRNAs were reduced in abundance in cdc5 relative to Col in two biological replicates.
Project description:MAC5A and MAC3 are conserved proteins that are required for development and immunity. They promotes the accumulation of microRNAs (miRNAs) and endogenous small interfering RNAs (siRNAs), which repress gene expression. In this project, we aim to determine the global effect of MAC3 and MAC5Aon the accumulation of miRNAs and siRNAs. We compared the small RNA profile in mac3a mac3b and mac5a with that in Col (Wild-type, WT). Small RNA libraries prepared from inflorescences of mac3a mac3b, mac5a and Col was subjected to Illumina deep sequencing analyses. The results show that many miRNAs and siRNAs were reduced in abundance in mac5a and mac3a mac3b relative to Col in two biological replicates.
Project description:DAWDLE (DDL) is a conserved forkhead-associated (FHA) domain-containing protein that plays essential roles in development and immunity. It was found to act in the biogenesis of microRNAs (miRNAs) and endogenous small interfering RNAs (siRNAs), which regulate gene expression at transcriptional and/or post-transcriptional levels. However, its global effect on miRNA accumulation still is not known. To determine the global effect of DDL on the accumulation of miRNAs and siRNAs, we compared the small RNA profile in ddl-1 with that in WS (Wild-type, WT). Small RNA libraries prepared from inflorescences of ddl-1 and WS was subjected to Illumina deep sequencing analyses. The results show that many miRNAs and siRNAs were reduced in abundance in ddl relative to WS in two biological replicates
Project description:To investigate the effect of AGO4 upon small RNA accumulation in Arabidopsis, we analyzed small RNA accumulation in ago4, ago4/ago6/ago9 triple mutant, stable transgenic lines expressing wild-type AGO4 and slicing-defective AGO4 in ago4 and ago4/ago6/ago9 background.
Project description:We investigate the naturally occurring variation of small RNA expression in conjunction with genetic and gene expression variation. We shall assess the variation in subabdominal fat tissue small RNA levels in 168 unrelated MuTHER individuals. Using gene expression data from the same samples, we can survey how much the small RNA expression contributes to the variance in gene expression profiles. We can also take advantage of the high density genotyping data on these samples to identify genetic associations of small RNA expression levels, and the downstream effect of the genetic variants in small RNA sequence. Previous small RNA sequencing efforts have also extended the repertoire of small RNAs, and we hope to potentially find additional small RNAs active in adipose tissue biology. Altogether, the project should provide an exciting view into small RNA biology in humans, and lead to development of new methodology for analysis of molecular phenotype data.
Project description:To examine the effect of loss of dFOXO on the small RNA landscape of aging animals, we sequenced total small RNA collected from whole wildtype (wDah) and dFOXO-null (dfoxoΔ94) flies at young (5-6 days) and old (31 days) age.