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100-million-year-old mistake provides snapshot of evolution
Date:10/18/2010

acid. When it is present, the activity of the protein is limited to making only male parts. When the amino acid isn't there, the protein is able to interact with a range of other proteins involved in flower production, enabling it to make both male and female parts.

"A small mutation in the gene fools the plant's machinery to insert an extra amino acid and this tiny change has created a dramatic difference in how these plants control making their reproductive organs," says Professor Davies. "This is evolution in action, although we don't know yet whether this mutation will turn out to be a dead end and go no further or whether it might lead to further complexities.

"Our research is an excellent example of how a chance imperfection sparks evolutionary change. If we lived in a perfect world, it would be a much less interesting one, with no diversity and no chance for new species to develop."

The researchers now plan to study the protein interactions which enable the production of both male and female parts as part of further investigation into the genetic basis by which plants produce flowers.


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Contact: Brendan Davies
b.h.davies@leeds.ac.uk
44-113-343-3123
University of Leeds
Source:Eurekalert

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