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To: b_sharp; Stultis; furball4paws
I wasn't sure which of you were involved in this conversation, but I thought I'd point out an article demonstrating Lamarckian inheritance through epigenetic mechanisms:

Environmental programming of heritable epigenetic changes in paramutant r-gene expression using temperature and light at a specific stage of early development in maize seedlings

This experiment provides the first evidence in higher organisms that environmental conditions, applied at a specific stage of development cause a heritable change in a specific allele expression. (emphasis mine)

1,323 posted on 01/02/2006 6:09:26 AM PST by johnnyb_61820
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To: johnnyb_61820
This experiment provides the first evidence in higher organisms that environmental conditions, applied at a specific stage of development cause a heritable change in a specific allele expression. (emphasis mine)

Not bad (if this bears out) but like your other examples this doesn't increase the quantity of underlying variation available for expression in the genome. It only effects how a particular gene is expressed. The genes and their alleles (variants) remain the same.

1,342 posted on 01/02/2006 8:03:30 AM PST by Stultis (I don't worry about the war turning into "Vietnam" in Iraq; I worry about it doing so in Congress.)
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