Catálogo de publicaciones - revistas

<jats:title>Inheritance of a covalent histone modification</jats:title> <jats:p> Genomic DNA is the repository of all genetic information and is packaged into chromatin. Chromatin is also a repository of regulatory information in the form of covalent marks added to the histones that package the DNA. These marks can determine tissue- and organ-specific gene expression patterns, which must be transmitted to daughter cells to maintain their identity. Ragunathan <jats:italic>et al.</jats:italic> and Audergon <jats:italic>et al.</jats:italic> show that in fission yeast, a chromatin mark, like genetic information, can be inherited across many cell generations. The mark can be inherited independently of DNA sequence, DNA methylation, or RNA interference. Thus, histone marks constitute true epigenetic information. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" related-article-type="in-this-issue" xlink:href="10.1126/science.1258699">10.1126/science.1258699</jats:related-article> ; see also p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6230" page="132" related-article-type="in-this-issue" vol="348" xlink:href="10.1126/science.1260638">132</jats:related-article> </jats:p>

<jats:p>During disasters such as the 2010 Deepwater Horizon oil spill, engaging the expertise of the academic community helped responders make critical decisions. A major barrier to such engagement, however, is the cultural gap between academia's reward system and that which prevails in the disaster response community. Given the importance of developing smart approaches to disasters, whether natural or human-caused, we need to bridge this gap.</jats:p>

<jats:p>A roundup of weekly science policy and related news.</jats:p>

<jats:p>Firm adding energy-generating mitochondria to egg cells has already produced human pregnancies.</jats:p>

<jats:p>Scientists link mystery deaths in India to consumption of lychees.</jats:p>

<jats:p>Persistent mass of warm water is reshuffling ocean currents, marine ecosystems, and inland weather.</jats:p>

<jats:p>Springer jumps into sham submissions arms race.</jats:p>

<jats:p>Researchers debate ending some trials to allow others to go forward.</jats:p>

<jats:p>Five years on, the world's largest accidental marine spill has left subtle scars on the Gulf of Mexico.</jats:p>

<jats:p>Deep-sea use of oil spill dispersants questioned.</jats:p>