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Sökning: WFRF:(James Paul A.) > (2010-2014) > (2011) > Stockholms universitet

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1.
  • Negre, Nicolas, et al. (författare)
  • A cis-regulatory map of the Drosophila genome
  • 2011
  • Ingår i: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 471:7339, s. 527-531
  • Tidskriftsartikel (refereegranskat)abstract
    • Systematic annotation of gene regulatory elements is a major challenge in genome science. Direct mapping of chromatin modification marks and transcriptional factor binding sites genome-wide(1,2) has successfully identified specific subtypes of regulatory elements(3). In Drosophila several pioneering studies have provided genome-wide identification of Polycomb response elements(4), chromatin states(5), transcription factor binding sites(6-9), RNA polymerase II regulation(8) and insulator elements(10); however, comprehensive annotation of the regulatory genome remains a significant challenge. Here we describe results from the modENCODE cis-regulatory annotation project. We produced a map of the Drosophila melanogaster regulatory genome on the basis of more than 300 chromatin immunoprecipitation data sets for eight chromatin features, five histone deacetylases and thirty-eight site-specific transcription factors at different stages of development. Using these data we inferred more than 20,000 candidate regulatory elements and validated a subset of predictions for promoters, enhancers and insulators in vivo. We identified also nearly 2,000 genomic regions of dense transcription factor binding associated with chromatin activity and accessibility. We discovered hundreds of new transcription factor co-binding relationships and defined a transcription factor network with over 800 potential regulatory relationships.
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2.
  • Foley, Jonathan A., et al. (författare)
  • Solutions for a cultivated planet
  • 2011
  • Ingår i: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 478:7369, s. 337-342
  • Tidskriftsartikel (refereegranskat)abstract
    • Increasing population and consumption are placing unprecedented demands on agriculture and natural resources. Today, approximately a billion people are chronically malnourished while our agricultural systems are concurrently degrading land, water, biodiversity and climate on a global scale. To meet the world's future food security and sustainability needs, food production must grow substantially while, at the same time, agriculture's environmental footprint must shrink dramatically. Here we analyse solutions to this dilemma, showing that tremendous progress could be made by halting agricultural expansion, closing 'yield gaps' on underperforming lands, increasing cropping efficiency, shifting diets and reducing waste. Together, these strategies could double food production while greatly reducing the environmental impacts of agriculture.
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