Project description:ATAC-seq was used to locate putative enhancer regions in the early development (tailbud stage), developing male and female gonads of the marine chrodate Oikopleura dioica.

2020-08-06 | GSE155772 | GEO

Gene expression response to copper toxicity between coastal and open ocean strains of marine Synechococcus

Project description:Marine cyanobacteria are thought to be the most sensitive of the phytoplankton groups to copper toxicity, yet little is known of the transcriptional response of marine Synechococcus to copper shock. Global transcriptional response to two levels of copper shock was assayed in both a coastal and an open ocean strain of marine Synechococcus using whole genome expression microarrays. Both strains showed an osmoregulatory-like response, perhaps as a result of increasing membrane permeability. This could have implications for marine carbon cycling if copper shock leads to dissolved organic carbon leakage in Synechococcus. The two strains additionally showed a reduction in photosynthetic gene transcripts. Contrastingly, the open ocean strain showed a typical stress response whereas the coastal strain exhibited a more specific oxidative or heavy metal type response. In addition, the coastal strain activated more regulatory elements and transporters, many of which are not conserved in other marine Synechococcus strains and may have been acquired by horizontal gene transfer. Thus, tolerance to copper shock in some marine Synechococcus may in part be a result of an increased ability to sense and respond in a more specialized manner.

2009-07-01 | GSE13910 | GEO

Effect of developmental (24-100 hpf) embryonic exposures to tris(4-chlorophenyl)methane and tris(4-chlorophenyl)methanol in the zebrafish

Project description:Tris(4-chlorophenyl)methane (TCPM) and tris(4-chlorophenyl)methanol (TCPMOH) are two marine pollutants of emerging concern, found in marine mammals and coastal bird populations. Here, we assess the response to these compounds due to developmental (24-100 hourrs post fertilization) exposures in zebrafish embryos

2022-12-31 | GSE198106 | GEO

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