1. Early evolution of neurons
William B. Kristan 
Current Biology 
Volume 26, Issue 20, Pages R949-R954 (October 2016)
DOI: /j.cub
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2. Figure 1
Evolutionary tree indicating the diversification of the five major animal clades, indicating some of the major events in the evolution of neurons.
The black circles with serrated edges indicate the order of the expansions, mostly through gene duplications, of the genes producing voltage-gated channels selective for potassium (Kv), calcium (Cav), and sodium (Nav) ions. The timing of these events is only approximate. (The diagram is based upon figures kindly provided by Benjamin J. Liebeskind; the animal pictures are by Annika L. Smith.)
Current Biology  , R949-R954DOI: ( /j.cub )
Copyright © 2016 Elsevier Ltd Terms and Conditions