Re: Spoiled Reward-Pathway Hypothesis

From: Chris Taylor (Christopher.Taylor@man.ac.uk)
Date: Tue Aug 28 2001 - 16:26:09 BST

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    Date: Tue, 28 Aug 2001 16:26:09 +0100
    From: Chris Taylor <Christopher.Taylor@man.ac.uk>
    Organization: University of Manchester
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    Subject: Re: Spoiled Reward-Pathway Hypothesis
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    Nice 'broken' example (cut and paste from my low quality 3rd year
    dissertation...)

    "The bruchid beetle _Callosobruchus maculatus_ moved onto the poisonous
    _Vicia faba_ (the broad bean). Between 5 and 10% of the larvae survive
    on _Vicia_, because these individuals lack ▀-glucosidase, which means
    they cannot hydrolyse the pyrimidic glucosides in _Vicia_ to their toxic
    form (Huignard et al, 1996). This shows how a loss of function can
    actually be a gain. Ants manage fine without the wings of their wasp
    ancestors!"

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     Chris Taylor (chris@bioinf.man.ac.uk)
     http://bioinf.man.ac.uk/ ╗people╗chris
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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