Project description:Here, we applied a microarray-based metagenomics technology termed GeoChip 5.0 to investigate spring microbial functional genes in mesocosm-simulated shallow lake ecosystems having been undergoing nutrient enrichment and warming for nine years.
2020-12-30 | GSE155582 | GEO
Project description:water metagenomics in eutrophic lake Donghu
Project description:Circular agar plugs with fresh mycelium of H. annosum isolates were inoculated onto the center of 9-cm Petri plates containing 2% MEA (malt extract agar) and incubated at 22°C in the dark. Presence of viruses in H. annosum isolates used for the experiment: –1W, isogenic isolates fully cured of viral infections by thermal treatment lasting a one week; –A2, –A4, –A5, –C1, monohyphal cultures created by hyphal tipping; 2052–, isogenic isolates, which have received different combinations of viruses by horizontal transmission from a donor strain denoted by D; –3M, dual cultures maintained for three months.
Project description:We examined adaptive morphological divergence and epigenetic variation in genetically impoverished asexual populations of a freshwater snail, Potamopyrgus antipodarum from distinct environments. These populations exhibit environment-specific adaptive divergence in shell shape and significant genome wide DNA methylation differences among differentially adapted lake and fast water flow river populations. The epigenetic variation correlated with adaptive phenotypic variation in rapidly adapting asexual animal populations. This provides one of the first examples of environmentally-driven differences in epigenetics that associates with adaptive phenotypic divergence.
Project description:We examined adaptive morphological divergence and epigenetic variation in genetically impoverished asexual populations of a freshwater snail, Potamopyrgus antipodarum from distinct environments. These populations exhibit environment-specific adaptive divergence in shell shape and significant genome wide DNA methylation differences among differentially adapted lake and fast water flow river populations. The epigenetic variation correlated with adaptive phenotypic variation in rapidly adapting asexual animal populations. This provides one of the first examples of environmentally-driven differences in epigenetics that associates with adaptive phenotypic divergence.
Project description:Extrachromosomal circular DNA (eccDNA) is generated from chromosomal templates to play multiple biological roles in different types of cells. However, it is unknown whether viral infection could cause cells to generate viral non-genomic circular DNA (vcDNA). Here, we demonstrated for the first time that Varicella zoster virus (VZV)-infected cells and tissues generate an abundance of vcDNA. We developed a Cre/loxP-mediated in vitro vcDNA/eccDNA synthesizing method. We transfected the synthesized vcDNA into HEK293T cells, RNA-seq analysis indicated that VZV vcDNA 76509|75569 effectively mitigated the innate immune response that was stimulated by linear VZV 75569-76509 DNA.
Project description:we used next-generation sequencing technology to characterise mRNA-seq of brackish water (BW, 10‰), fresh water (FW, 0‰), and sea water (SW, 25‰)-treated Anguilla marmorata's gill, kidney and intestine to elucidate the molecular mechanisms of salinity adaptation.
2017-12-10 | GSE95803 | GEO
Project description:COI gene sequencing of fresh water organisms of lake Nkaban
| PRJNA394963 | ENA
Project description:CO1 gene sequences of fresh water organisms of lake SKaban
| PRJNA394961 | ENA
Project description:COI gene sequences of fresh water organisms of SKaban lake