Project description:Protist predators are the primary agents of top-down control of bacteria and primary producers, and thus key organisms determining the fate and transport of organic matter in nature. In this study, we address the effects of light and silver stress on the mixotrophic protist Poterioochromonas malhamensis by means of mass spectrometry-based label-free proteomics.
Project description:Genomic DNA of Col, Van and reciprocal hybrids, bioprime random labeling, and hybridization to AtTILE1 forward array. Study on genetic ploymorphic between arabidopsis thaliana accessions Col-0 and Van-0, and set the scale of F1 hybrid intensity for SFPs.
2008-11-18 | GSE13620 | GEO
Project description:Transcriptomic analysis reveals the defense mechanisms of Microcystis aeruginosa upon Poterioochromonas malhamensis exposure
Project description:CG Methylation of Col, Van and reciprocal hybrids using HpaII and MspI digestion followed by bioprime random labeling, and hybridization to AtTILE1 forward array. Study on constitutive and ploymorphic CG methylation between arabidopsis thaliana accessions Col-0 and Van-0. Study on the inheritance of CG methylation in reciprocal hybrids. Keywords: genomic hybridization
Project description:Epigenetic variation has the potential to control environmentally dependent development and contribute to phenotypic responses to local environments. Environmental epigenetic studies of sexual organisms confirm the responsiveness of epigenetic variation, which should be even more important when genetic variation is lacking. A previous study of an asexual snail, Potamopyrgus antipodarum, demonstrated that different populations derived from a single clonal lineage differed in both shell phenotype and methylation signature when comparing lake versus river populations. Here, we examine methylation variation among lakes that differ in environmental disturbance and pollution histories. The differential DNA methylation regions (DMRs) identified among the different lake comparisons suggested a higher number of DMRs and variation between rural Lake 1 and one urban Lake 2 and between the two urban Lakes 2 and 3, but limited variation between the rural Lake 1 and urban Lake 3. DMR genomic characteristics and gene associations were investigated. Observations suggest there is no effect of geographic distance or any consistent pattern of DMRs between urban and rural lakes. Environmental factors may influence epigenetic response.
Project description:Gymnocypris przewalskii przewalskii is distributed in Qinghai Lake, the largest inland saltwater lake in China. It is the only Cyprinidae fish in the Qinghai Lake water system and has extremely strong adaptability to the ecological environment with high salinity. G. p. przewalskii originates from the freshwater species Gymnocypris eckloni eckloni in the Yellow River and has a freshwater subspecies, Gymnocypris przewalskii ganzihonensis, distributed in the Ganzi River. Therefore, G. p. przewalskii is considered an ideal material for studying the high salt adaptation of plateau fish. Previous studies have characterized the evolutionary basis of highland adaptation in G. p. przewalskii; however, its adaptability to highly saline aquatic environments remains elusive. In the current study, we performed physiological, histological, genomic and transcriptomic analyses to investigate the phenotypical adaptation of G. p. przewalskii to a high saline environment and the underlying genomic and regulatory bases.
2024-08-30 | PXD055442 |
Project description:16S bacterial metagenomic profiling of Lake Van