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IMAGE: Researchers discovered a genetic marker that differed between spinal cord neurons that only had short connections (green) and those that had more long-range connections (purple). view more
Credit: Salk Institute
LA JOLLA (April 22, 2021) Spinal cord nerve cells branching through the body resemble trees with limbs fanning out in every direction. But this image can also be used to tell the story of how these neurons, their jobs becoming more specialized over time, arose through developmental and evolutionary history. Salk researchers have, for the first time, traced the development of spinal cord neurons using genetic signatures and revealed how different subtypes of the cells may have evolved and ultimately function to regulate our body movements.
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