A new paper from the Zilberman lab at UC Berkeley shows the application of high throughput sequencing to the study of DNA methylation in eukaryotes . They generate an huge data set of whole genome methylation patterns in several plants, animals, and five fungi including early diverging Zygomycete. [...]
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I spy a picture of Neurospora growing on the cover of Genetics this month. The cover highlights the results from the work of the lab of Luis Corrochano who works on light regulation in a variety of systems like Neurospora and Phycomyces. This work describes their work on the fluffy gene which regulates conidiation (production of conidia or asexual [...]
Researchers from Technical University of Denmark published some interesting results from comparing expression across the very distinct Aspergillus species. Kudos also goes to making it Open Access. I am posting a few key figures below the fold because I can! They grew the fungi in bioreactors fermenting glucose or xylose. After calibrating the growth curves they were able to sample the appropriate time points for comparison of gene expression across these three species. They found a set of genes commonly expressed.
[...] A study shows how Caffeine regulates alternative splicing in a subset cancer-associated genes including the transcription factor and tumor suppressor KLF6 through the splicing factor SC35. There is a necessary “caffeine response element” in the intron of KLF6 which plays a role in the splice-site choice, although caffeine induces up-regulation of SC35 and over-expression of SC35 is sufficient to mimic the caffeine response [...] Reverting CUG tRNA from derived change coding for serine back to leucine (standard code) has profound effect on organism. [...]
Your eye contains the same genetic content as your fingernail, but these two tissues look nothing alike. One significant cause of this difference is the tissue specific regulation of the genes in the genome. In some tissues in your body, a gene may be expressed (transcribed) while that same gene may be silent in another tissue type. [...] Splicing of pre-messenger RNA is necessary to remove introns and create well formed and translateable mRNA, but the purpose of introns still remains a mystery. One idea is they provide a role in the error checking machinery, or Nonsense Mediated Decay (NMD), by providing way-points during translation. A protein is deposited at the exon [...] |
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