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image: An Ancient Evolutionary Advantage?

An Ancient Evolutionary Advantage?

By | April 1, 2014

Shared sequences within the brain lipid-metabolism pathway between Neanderthals and modern Europeans highlight questions about how these genetic similarities arose.

3 Comments

image: Origins of Lactase Persistence in Africa

Origins of Lactase Persistence in Africa

By | March 13, 2014

Large-scale sequencing effort confirms several mutations that confer lactase persistence in Africans, while haplotype analysis sheds light on the trait’s origins.

3 Comments

image: Convergent Fish Fins

Convergent Fish Fins

By | March 5, 2014

Adipose fins, long considered vestigial, may have evolved multiple times as a key adaptation in some fish, study finds.

1 Comment

image: Bacteria’s Role in Bowel Cancer

Bacteria’s Role in Bowel Cancer

By | March 3, 2014

The development of serrated polyps depends on bacteria present in the gut, a mouse study shows.  

3 Comments

image: How a Microbe Resists Its Own Antibiotics

How a Microbe Resists Its Own Antibiotics

By | February 20, 2014

Researchers reveal the molecular mechanisms of Streptomyces platensis’s defense from its own antibiotics, which inhibit fatty acid synthesis in other microbes.

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image: Jumping Hosts

Jumping Hosts

By | January 30, 2014

A single amino acid change helps a plant pathogen related to the causative agent of the Irish potato famine infect a new host.

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image: <em>Drosophila</em>’s New Genes

Drosophila’s New Genes

By | January 23, 2014

An analysis of the transcriptomes of several fruit fly strains reveals dozens of possible de novo genes in each.

6 Comments

image: Contagious Dog Cancer Sequenced

Contagious Dog Cancer Sequenced

By | January 23, 2014

A dog tumor that became a free-living parasite picked up myriad mutations, but has since stabilized.

8 Comments

image: More than Calcium

More than Calcium

By | January 22, 2014

Ancient DNA analysis suggests that calcium and vitamin D deficiencies were not the only reasons that may have driven Neolithic Iberian people to drink milk.

4 Comments

image: Human-Pathogen Coevolution

Human-Pathogen Coevolution

By | January 13, 2014

Helicobacter pylori strains that share ancestry with their human hosts are less likely to cause severe disease.

2 Comments

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