From: Robert J. Bradbury (bradbury@aeiveos.com)
Date: Tue Jun 03 2003 - 22:45:08 MDT
On Tue, 3 Jun 2003, Party of Citizens wrote:
> Can you or the Drosophilus Dude from UBC give me a reference to a journal
> which describes an adaptive mutation in fruit flies?
> POC
I cannot provide an "adaptive" mutation in fruit flies. However
I believe that there are at least two strains of "dwarf" mice
which show extended longevity. Now why "dwarf" mice should
have this characteristic is open to a lot of debate.
But the Jackson Laboratory is happy to provide them to you to
find out... For example:
http://jaxmice.jax.org/jaxmice-cgi/jaxmicedb.cgi?objtype=pricedetail&stock=000643
Documents the "Snell's dwarf" mouse.
Now as to whether the mutation is "adaptive" -- the world only
has to undergo a brief exposure to the radiation from a supernova
which may cause a decrease in food resources and the "dwarves"
will likely be the winners in the selection game.
In normal conditions presumably "dwarf" mice have a survival advantage
in any environment where food resources are diminished.
Robert
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