Project description:TubA is a specific inhibitor of HDAC6, it could regulate oocytes maturation by regulating acetylation of α-tubulin. However, weather it effects maternal mRNA expression remains unkown. Therefore, in this study,we got in vitro maturated MII oocytes in control and 0.1μg/mL treated .Our study suggests that TubA mainly downregulated cell cycle and DNA methylation related genes.
Project description:We show that Tubastatin A (TubA) preserves MuSC quiescence and stem cell potency ex vivo, by inhibiting HDAC6 and, consequently, primary cilium resorption. Treatment with TubA improves MuSC engraftment potential and induces a return to quiescence in cycling MuSCs, revealing a potentially valuable approach to enhancing the therapeutic potential of MuSCs. To examine the state of quiescence preserved by TubA at the transcriptome level, we performed RNA-Seq and we found that TubA-treated MuSCs exhibit a quiescent transcriptome. The molecular mechanisms involved in the maintenance of quiescence by TubA were ribosome- and oxidative phosphorylation-related genes as well as low expression levels of cell cycle genes and Hh signaling genes.
2022-01-28 | GSE178070 | GEO
Project description:Genomic profiling of dioecious Amaranthus species provides novel insights into species relatedness and sex genes
Project description:Imposex, the superimposition of male sexual characteristics in females, is caused by tributyltin (TBT) and provides one of the best ecological examples of anthropogenically-induced endocrine disruption in aquatic ecosystems. We used combinations of 454 Roche pyrosequencing and microarray technologies to understand the functional genomic basis of imposex in the prosobranch gastropod, Nucella lapillus, a recognised sentinel for TBT-induced imposex.
Project description:Tanaidaceans are small benthic crustaceans that mainly inhabit diverse marine environments, and they comprise one of the most diverse and abundant macrofaunal groups in the deep sea. Tanaidacea is one of the most thread-dependent taxa in the Crustacea, constructing tube spun with their silk for shelter. In this work, we sequenced and assembled the comprehensive transcriptome of 23 tanaidaceans encompassing 14 families and 4 superfamilies of Tanaidacea, and performed silk proteomics of Zeuxo ezoensis to search for its silk genes. As a result, we identified two families of silk proteins, that are conserved across the four superfamilies. Long and repetitive nature of these silk genes resemble that of other silk-producing organisms, and the two families of proteins were similar in composition to silkworm and caddisform fibroins, respectively. Moreover, the amino acid composition of the repetitive motifs of tanaidid silk tended to be more hydrophilic, and therefore could be a useful resource to study their unique adaptation of silk use in marine environment. The availability of comprehensive transcriptome data in these taxa coupled with the proteomics evidence for their silk genes would facilitate the evolutionary and ecological studies.
Project description:Transcriptome Analysis of Tra Catfish (Pangasianodon hypophthalmus) Early Development Provides Novel Insights for the Terrestrial Adaptation
Project description:Previous studies have demonstrated that the iron content in marine heterotrophic bacteria is comparatively higher than that of phytoplankton. Therefore, they have been indicated to play a major role in the biogeochemical cycling of iron. In this study, we aimed to investigate the potential of viral lysis as a source of iron for marine heterotrophic bacteria. Viral lysates were derived from the marine heterotrophic bacterium, Vibrio natriegens PWH3a (A.K.A Vibrio alginolyticus). The bioavailability of Fe in the lysates was determined using a model heterotrophic bacterium, namely, Dokdonia sp. strain Dokd-P16, isolated from Fe-limited waters along Line P transect in the Northeastern Pacific Ocean. The bacteria were grown under Fe-deplete or Fe-replete conditions before being exposed to the viral lysate. Differential gene expression following exposure to the viral lysate was analyzed via RNA sequencing to identify differentially expressed genes under iron-replete and iron-deplete conditions. This study would provide novel insights into the role of viral lysis in heterotrophic bacteria in supplying bioavailable iron to other marine microorganisms under iron-limiting and non-limiting conditions. First, the marine heterotrophic bacterium genome, Dokdonia sp. strain Dokd-P16, was sequenced to provide a genomic context for the expression studies. Subsequently, the relative gene expression in Dokdonia sp. strain Dokd-P16 grown under Fe limiting and non-limiting conditions were analyzed. This transcriptomic approach would be utilized to elucidate genes regulated by Fe availability in Dokdonia sp. strain Dokd-P16, which indicate its Fe-related response viral lysate exposure. Taken together, in this study, the transcriptomic responses of Fe-limited and non-limited marine heterotrophic bacteria were analyzed, which provided novel insights into the biological availability of Fe from the viral lysates.