Re: Group selection in the breeding of super chickens


Tim Tyler <seemysig@xxxxxxxxxxxxxx>

Or - looking at slime moulds - perhaps the key factor was the
ability to spread successful disease resistance genes rapidly
over a wide area.

JE:-
Guy provided me with a key paper (which I cannot locate at the moment) on
slime moulds which proved that the proposed sacrifice of cells to form the
stalk, which is absolutely required to support the fruiting body high enough
was not group selective. If cells cheat by moving to a position in the
composite slug (which was either the front or the back I cannot recall) then
the height to which the fertile spores are carried becomes reduced, reducing
in turn the fitness of the cells who cheated. IOW, what we are looking at
here is not group selective organism fitness altruism or selfish geneism
providing organism fitness altruism just organism fitness mutualism where
the organism is just one fertile slime mould cell. At some point the risk of
having to form the stalk as-a-must -be-paid-premium becomes worth it only
because the premium as a fitness loss is less than the fitness gains that
paying the premium provides.

Individual organisms can cooperate too - but the best way to
ensure cooperation is to sterilise your workers (or soma), so
their genes /only/ hope of immortality lies through cooperation.

JE:-
Eusocial workers do not have to be sterilized, they are simply born that
way, as are all immature forms. What you can do is stop most of them
maturing to fertile adulthood providing for yourself a legion of modular
extensions which can be used like supporting somatic cells. Allowing sterile
immature within a valid fitness count represents a massive error.

Regards,

John Edser
Independent Researcher

edser@xxxxxxxxxxxxxx









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