HOW HOX MADE FISH FINGERS

May 2007

Remember all that stuff about Hox genes in the first year? Well it IS important! A study from Chicago shows that a primitive fish, Polyodon, shows expression of Hox and Sonic hedegog (one of my favourite gene names) in a pattern similar to that seen in tetrapods. The authors interpret this in terms of the gradual evolution of legs, over a 20 million year timescale.

Nature article (subscription needed to get past abstract), BBC article, an article by me about gene names.

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