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Re: Testing Gourd Diffusion?

Peter van Rossum (pmv100@psu.edu) wrote:
: In article <59ecs3$gaj@news1.io.org> yuku@io.org (Yuri Kuchinsky) writes:
: >OK, Peter, this is what can be done.

: >1. Try to determine for sure when the African gourd arrived to America. In
: >order to do this, the following is relevant.
: >2. What sort of a gourd arrived? (Was it already a cultigen, or a
: >cultivar, or a wild plant?) Are there any wild African gourds growing in
: >America? Are there any cultigen gourds growing in the wild?

: How are you going to demonstrate what type of gourd arrived?

Simple. DNA testing can tell us a lot about it. You should have read the
following more carefully:

: >3. Do some genetic testing to determine _when_ the American bottle gourds
: >separated from the African bottle gourds. (Are you suggesting that the
: >great progress in genetics in the last few years has no relevance to
: >determining the history of bottle gourd in America?) Do all of the
: >American bottle gourds derive from the same primeval stock? Were there
: >multiple introductions or arrivals? I believe genetics can help to answer
: >these questions currently, or in the near future. 

: Um, this ignores the fact that if the gourd could have come across once,
: it also could have come across multiple times. 

And this is, precisely, what genetic testing can clarify.

: If the later arrivals
: cross-bred this would introduce errors in your timing.

This can also be clarified.


[re: maize]

: And as has been said, this is no cause
: for anyone who truly seeks the truth the tremble (as I do). If by some
: miracle this actually pans out I'll thank you for the info.

I hope you will.

            =O=    Yuri Kuchinsky in Toronto    =O=
  --- a webpage like any other...  http://www.io.org/~yuku ---
We should always be disposed to believe that that which 
appears white is really black, if the hierarchy of the 
Church so decides       ===      St. Ignatius of Loyola