This is the blog for GW students taking Human Evolutionary Genetics. This site is for posting interesting tidbits on: the patterns and processes of human genetic variation;human origins and migration; molecular adaptations to environment, lifestyle and disease; ancient and forensic DNA analyses; and genealogical reconstructions.

GWHEG figure

GWHEG figure

Tuesday, March 6, 2018

Researchers find the ancestral function of the retinoic acid, an essential molecule in the evolution of vertebrates



Researchers at the University of Barcelona have identified a role in gene expression for retinoic acid, important in the embryonic development of vertebrates. The acid seems to regulate the gene expression in cell proliferation and differentiation during the embryonic development and the formation of body symmetry patterns. The researchers showed that retinoic acid controlled cell differentiation in the species P. dumerilii and aided in the proper formation of neurons. This acid likely has roots in the evolution of bilateral symmetry, which is a very basic shared trait amongst Chordates.

Link to news release here.

Kim Foecke

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