This Week in PNAS

An international team of researchers has traced the origin of Phytophthora infestans, the pathogen behind the Irish potato famine, to central Mexico, rather than to the Andes, where it was previously thought to have originated. By sequencing a set of nuclear genes from P. infestans from Mexico and the South American Andes as well as from sister species, the researchers unraveled the history of this pathogen.

To read the full story....

Register for Free.

...and receive Daily News bulletins.

Already have an account?
Login Now.

Researchers have sequenced the northern white rhinoceros to gauge whether it could be brought back from the edge of extinction, the New York Times reports.

Bavaria expands its forensic genetic analyses to include DNA phenotyping, raising discrimination concerns.

Tufts University researchers found a role for miRNA in transmitting stress between generations, the Economist reports.

In Science this week: gut microbiome influences liver cancer growth, spread; and more.