Ash dieback fungus DNA decoded by Norwich scientists
8 March 2013 Last updated at 14:11 GMT
Scientists in Norwich have deciphered the DNA sequence of the fungus which is killing ash trees.
The data has been released on the web to enable international experts to study the problem of dieback, which is attacking forests across Europe.
Ash dieback has spread to more than a 100 sites across the eastern region since it was first detected in the wild in Norfolk in November 2012.