Image of the Day: Painting with Viruses

Researchers have used a modified rabies virus and fluorescent proteins to tag individual nerve cells in the mouse visual cortex. 

Oct 31, 2017
The Scientist Staff

Neurons in the visual cortex of the mouse are labeled with two modified rabies viruses, each expressing a different fluorescent protein. The viruses were injected into the anteromedial area (green) and the lateromedial area (red) of the visual cortex.MARINA GARRETT, SALK INSTITUTEScientists are making use of modified rabies viruses to tag different types of neurons in the mouse brain. This is part of a multi-million dollar project to build a comprehensive atlas of the mammalian brain, led by scientists at the Salk Institute.