Using DNA, scientists hunt for the roots of the modern potato

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More than 99 percent of all modern potato varieties planted today are the direct descendents of varieties that once grew in the lowlands of south-central Chile. How Chilean germplasm came to dominate the modern potato-which spread worldwide from Europe-has been the subject of a long, contentious debate among scientists.


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All News summaries for January 29, 2008

Item! Candidates are buying your vote

7 hours ago | User rating: not rated yet
Mention the words “vote buying” and modern-day political villains Jack Abramoff and Tony Rezko probably come to mind, or perhaps special interest groups that donate to a politician’s campaign and expect support when relevant ...

Entrepreneurs value 'ideas' over weatlh, study finds

11 hours ago | User rating: not rated yet
A study at the University of Liverpool has revealed that entrepreneurs are driven to start companies by their passion for ideas rather than the pursuit of wealth.

Researchers identify proteins that help develop mammalian hearts

May 16, 2008 | User rating: not rated yet
The absence of two proteins in mammalian embryos prevents the development of a healthy heart, a new study by researchers at the Medical College of Wisconsin, Milwaukee, has found.

Sulfur in marine archaeological shipwrecks -- the 'hull story' gives a sour aftertaste

May 16, 2008 | User rating: not rated yet
Advanced chemical analyses reveal that, with the help of smart scavenging bacteria, sulfur and iron compounds accumulated in the timbers of the Swedish warship Vasa during her 333 years on the seabed of the Stockholm harbour. ...

Scientists unveil new tool to understand evolution of multi-domain genes

May 16, 2008 | User rating: not rated yet
Carnegie Mellon scientists have discovered critical flaws in the standard method used to analyze gene evolution. Standard methods fail when applied to genes that encode multi-domain proteins, an important class of proteins ...
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