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Re: [SANET-MG] synthetic genes and peptides



Hi Lawrence London,
RA Fisher was one of the founding fathers of population genetics and as well he was a founder of modern statistical analysis. Fisher views on QTL was that there were many individual genes adding tiny amounts to make a trait such as size. Each gene contributes a minute amount but together they make traits such as size of oil content in maize. MAS works best for traits such as disease resistance or say fruit ripening where a few genes each contribute a sizable amount. For the traits with minute contributions from each of many genes MAS does not appear to be cost effective. Setting up a MAS laboratory is not entirely out of site but it is best to set up such labs in universities or large private organizations. However, once the linkages are established a plant breeder who follows the MAS results may be able to assign linkages that are very productive.
Hoe this helps, sincerely,joe Cummins
Lawrence F. London, Jr. wrote:
jcummins wrote:

Turning to marker assisted selection (MAS) I agree that it is something that organic agriculture can embrace because the crop genes are selected not altered.


Nevertheless,for some important QTL R.A.Fisher will prevail leaving selection in the hands of patient breeders.


Is that "patent" or "patient"? Who is R.A. Fisher. Is this technology
existing organic plant breeders (often seed vendors who grow their own or contract grow-out to larget operations) will be able to access. This sounds like a really exciting development. Would setting up a MAS lab by an organic heirloom seed vendor be cost-prohibitive (that includes cost of technician training or hiring one off-site)?

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