Catálogo de publicaciones - revistas

<jats:p> Denk <jats:italic>et al</jats:italic> . agree that we reported the first fossil Fagaceae from the Southern Hemisphere. We appreciate their general enthusiasm for our findings, but we reject their critiques, which we find misleading and biased. The new fossils unequivocally belong to <jats:italic>Castanopsis</jats:italic> , and substantial evidence supports our Southern Route to Asia hypothesis. </jats:p>

<jats:title>In vitro development of monkey embryos</jats:title> <jats:p> Owing to technical and ethical limitations, the molecular and cellular mechanisms underlying primate gastrulation are far from clear (see the Perspective by Tam). Two independent studies used an in vitro culture system to study cynomolgus monkey embryo postimplantation development up to and beyond gastrulation (day 9 to day 20). Niu <jats:italic>et al.</jats:italic> observed in vivo morphogenetic events and used single-cell RNA sequencing and single-cell chromatin accessibility to study the distinct cell lineages in developing embryos. Ma <jats:italic>et al.</jats:italic> also observed that key events of in vivo early development were recapitulated in their system, and single-cell RNA-sequencing analysis revealed molecular signatures of postimplantation cell types. These systems will help elucidate the dynamics and regulation of gastrulation in primates, including possible relevance to human development. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <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.aaw5754">eaaw5754</jats:related-article> , p. <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.aax7890">eaax7890</jats:related-article> ; see also p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6467" page="798" related-article-type="in-this-issue" vol="366" xlink:href="10.1126/science.aaz6976">798</jats:related-article> </jats:p>

<jats:p> Wilf <jats:italic>et al</jats:italic> . (Research Articles, 7 June 2019, eaaw5139) claim that <jats:italic>Castanopsis</jats:italic> evolved in the Southern Hemisphere from where it spread to its modern distribution in Southeast Asia. However, extensive paleobotanical records of Antarctica and Australia lack evidence of any Fagaceae, and molecular patterns indicate shared biogeographic histories of <jats:italic>Castanopsis</jats:italic> , <jats:italic>Castanea</jats:italic> , <jats:italic>Lithocarpus</jats:italic> , and <jats:italic>Quercus</jats:italic> subgenus <jats:italic>Cerris</jats:italic> , making the southern route unlikely. </jats:p>

<jats:p>There are key moments in the history of every disruptive technology that can make or break its public perception and acceptance. For CRISPR-based genome editing, such a moment occurred 1 year ago—an unsettling push into an era that will test how society decides to use this revolutionary technology.</jats:p>

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

<jats:p>Reflective, conductive, and magnetic, U-carbon could have many practical uses—if it's real.</jats:p>

<jats:p>EPA proposal would allow regulators to ignore many health studies.</jats:p>

<jats:p>In mice, viruses known as phages reduced alcohol-related liver problems by eliminating a gut microbe.</jats:p>

<jats:p>Low-cost approach enables United States to double scrutiny of seafloor creep in quake zones.</jats:p>

<jats:p>Researchers debate whether a tiny worm is to blame.</jats:p>