Research highlight by Kazuharu Arakawa and Masaru Tomita, Institute for Advanced Biosciences, Keio University, JapanGene duplications and mutations are central driving forces in the evolution of genomes. Genomes must be robust to such changes in order to be

http://blog-msb.embo.org/blog/2008/04/evolvability_and_hierarchy_in.html

Evolvability and hierarchy in rewired bacterial gene networks. Isalan M (2008) Nature.
April 29, 2008