“One stressful event can affect many traits and allow previously unseen genetic variation to be expressed,” says [Todd] Sangster. “We don’t know yet what is going on at the molecular level—why the HSP90-dependent traits are expressed when the [mustard] plants are mildly stressed.”

Whitehead Institute for Biomedical Research (2008, February 27)
"Protein 'Shocks' Evolution Into Action"
ScienceDaily
Retrieved February 27, 2008, from
http://www.sciencedaily.com¬/releases/2008/02/080223123054.htm