Project description:ChIP-seq to identify sigma38 binding sites in wild-type and delta ssrS (6S RNA knockout) strains of E. Coli K-12 MG1655, during stationary phase ChIP-seq using antibody against sigma38 in wild-type and ssrS deletion strain. Two replicates for wild type and one replicate for ssrS deletion.
Project description:Alternative splicing (AS) is strictly regulated during cell differentiation and development. AS events are common in the testis, but the splicing regulation in spermatogenesis is still unclear. In this experiment, the third-generation ONT sequencing was used to sequence the full-length transcriptome of testicular tissue, and 40,038 new transcripts were obtained, and the proportion was almost close to the number of known transcripts identified. A total of 7,645 fused transcripts, 15,355 ASs, 25,798 SSRs, and 35,503 lncRNAs were detected. Through gene co-expression network analysis, the key pathways and Hub genes in each stage of yak testicular development were confirmed. The effects of alternative splicing and splicing variation on mammalian spermatogenesis will provide new insights into the potential application of alternative splicing in the treatment of male infertility.
Project description:This entry refers to transcriptome analysis of five E. coli strains: E. coli K-12 MG1655, single deletions of rsd, ssrS, and rpoS, as well as a double deletion of rsd and ssrS, in five growth phases.
Project description:Gerbera delavayi Franch. endemic to southwest China, is a rare fiber plant. In this study, the leaves of G. delavayi were sequenced based on Illumina Hi-Seq2500. The results showed that 108694 unigenes were found. N50 was 593.90bp, and the mean length was 912bp. By comparing with Nr and Swiss-prot database, 40915 unigenes were annotated, and 67779 unigenes were unannotated. In addition, 30 unigenes had homology with Ces family, 20 unigenes had homology with Cls family, and 11 unigenes had homology with SuSy. 11369 unigenes were assigned to 25 categories with COG database, and 21378 unigenes were divided into 52 GO terms. Function annotation against KEGG database obtained 8087 unigenes and 118 pathways. 47 unigenes were found at “phenylpropanoid biosynthesis” pathway. Furthermore, 4908 unigenes contained 5179 SSRs, 1 SSR occurred every 12.46kb. The largest number of SSR type was mono-nucleotide repeat, and its frequency was 54.37%; the next was di-nucleotide repeat and tri-nucleotide repeat, with the frequencies of 22.90% and 21.70%, respectively. These results greatly enriched the genetic information of G. delavayi, and provided basic data for genetic breeding and exploitation of this unique plant resource.
Project description:ChIP-seq to identify sigma38 binding sites in wild-type and delta ssrS (6S RNA knockout) strains of E. Coli K-12 MG1655, during stationary phase
Project description:This entry refers to transcriptome analysis of five E. coli strains: E. coli K-12 MG1655, single deletions of rsd, ssrS, and rpoS, as well as a double deletion of rsd and ssrS, in five growth phases. 25 samples (5 strains in 5 growth phases) with 2 replicates each.
Project description:Posttranslational modification by the small ubiquitin-like modifier Sumo regulates many cellular processes including the adaptive response to various types of stress, which has been referred to as Sumo Stress Response (SSR). However, it remains unclear whether the SSR involves a common set of core proteins regardless of the type of stress, or whether each particular type of stress induces a stress-specific SSR that targets a unique, largely non-overlapping set of Sumo substrates. In this study we used mass spectrometry to identify differentially sumoylated proteins during heat shock, hyperosmotic stress, oxidative stress, nitrogen starvation and DNA alkylation in Saccharomyces cerevisiae. Our results show that each stress triggers a specific SSR signature centered on proteins involved in transcription, translation, and chromatin regulation. Strikingly, while the various stress-specific SSRs were largely non-overlapping, all types of stresses tested here resulted in desumoylation of subunits of RNA polymerase III, which correlated with a decrease in tRNA synthesis. We conclude that desumoylation and subsequent inhibition of RNA polymerase III constitutes the core of all stress-specific SSRs.
Project description:Despite the fact that taro, colocasia esculenta, is an important staple food for millions of people around the world, its genome and transcriptome sequence has not yet been investigated. The objective of this study was to generate transcriptome sequence information from taro cultivars Niue, Palau 10, and Sam-07. Niue and Sam-07 are highly susceptible to the taro leaf blight (TLB) disease caused by Phytophthora colocasiae, to which Palau 10 is resistant. The analysis of the taro transcriptome will facilitate gene discovery, including genes that are responsible for TLB-resistance. Moreover, microsatellites (SSRs) developped from these data will be useful for marker-assisted breeding of improved taro cultivars, QTL mapping, and characterization of the genetic diversity in taro.