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Re: Jumping Genes

Linda Mann wrote:

:  (Was that Barbara McClintock's jumping genes in corn?)

No.  It involved two species of grains, but after 20 some years I don't remember
the details!

:  Pushing for more more more...What kind of speculation?

1.	Are any chromosomes from different species so nearly homologous that they
could pair and cross during meiosis, yet still produce a viable chromosome?  

2.	If so, could this not produce advanced-generation multi-species hybrids
that are, for all practical purposes, a new type of autoploid?

3.	If so, is it not possible to obtain cultivars that are predominantly of
one species, yet have a trait not normally found in that species.  

Example:  a dominant amoena many generations removed from PROGENITOR.	Does it
carry a complete set of chromosomes from  I. reichenbachii/suaveolens?  Or just
the chromosome on which the dominant amoena gene resides?  Or just a fragment of
that chromosome "injected" into the effectively homologous chromosome of another
species like I. mesopotamica?

Sharon McAllister (73372.1745@compuserve.com)
Quitting before the rest of the list members start saying "less  -  less -

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