The team carried out a preliminary genetic analysis of the backcross mice, and showed that the propensity to dig long burrows is actually due to changes in three genetic regions, with a fourth region controlling the escape route behaviour.

BBC: Mouse burrowing 'in their genes'

The directorate, which consulted on proposed changes to legislation in 2011, said many of the laws controlling the sale and planting of seeds dated back to the 1960s and 70s.

BBC: Planned new European laws 'threaten' rare seeds

"As long as the factions now controlling the LDP remain in charge, it's hard to imagine any policy changes, " says Okazaki.

CNN: Down In Flames