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Genes & Cells

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a baby breast feeding

GOOD NUTRITION  Breast milk contributes to an intestinal mix of microbes in newborns that might suppress pet allergy risk later, a study finds.

Pseudomonas fluorescens

Two mutations allowed soil bacteria (Pseudomonas fluorescens) to re-evolve flagella: One pumped up levels of a protein than controls nitrogen uptake, and one that switched that protein’s job to flagella production control.

wheat map

GRAIN TRAIN  Agriculture spread from what’s now Turkey along southern (purple arrow) and northern routes (yellow arrows) into Europe. DNA recovered from soil at the underwater site of Bouldnor Cliff indicates that wheat reached England at least 2,000 years before it was first grown there.

Genes & Cells

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