Re: Spoiled Reward-Pathway Hypothesis

From: Chris Taylor (
Date: Tue Aug 28 2001 - 16:26:09 BST

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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

    "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

     Chris Taylor ( ╗people╗chris

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