Fwd: DOROTHEA and the "gene gun", orange petunias!

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Date: Mon, 15 Dec 2003 09:56:01 -0600
From: Brian Mahieu <bmahieu1@socket.net>
Organization: www.lilywoodfarms.com
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To: Bzzscheile@AOL.COM, DAYLILY E-MAIL ROBIN
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Subject: DOROTHEA and the "gene gun", orange petunias!
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Brian Mahieu, AHS region 11, zone 5, north-central Missouri USA

Hi everyone,

Sorry if my comments about the gene gun were confusing.  I was not 
suggesting we use the gene gun to inject corn genes into the daylily, I 
was referring to Mary Lester's intermating of (Hemerocallis STARLIGHT X 
Hosta ventricosa).  I meant to say it is POSSIBLE that some stray bit of 
hosta DNA could have altered DOROTHEA.  Not, probable -- perhaps verging 
on science fiction -- but possible.  One must remember that at the time 
Mary Lester made this cross (mid 1940s) the prevailing thought was that 
hosta and hemerocallis were in the same family, thus such a cross was 
not preposterous.  I said:

"Remember, DOROTHEA is (STARLIGHT X Hosta ventricosa!) according to her
hybridizer Mary Lester in an article published in the Journal years ago.
 Dorothea was said to be the first hem. with lavender in the eyezone and
is in the parentage of Lambert's CERULEAN STAR.  Hosta ventricosa has
lavender blue blooms, and at the time of making the cross they believed
Hemerocallis and Hosta to be in the same family.  Another hybridizer was
said to replicate the cross.  Mary said that seedlings from DOROTHEA
began exhibiting foliage over 2 inches wide...  gives one pause to
think!  I say if scientists can take a gene gun and shoot bits of DNA
into a corn leaf and change the plant SOMETHING could have happened
between Hosta Ventricosa and STARLIGHT!"

Here is an article about the gene gun being used at Auburn University:


http://www.ag.auburn.edu/aaes/webpress/1994/gene.htm

Here is an article about Robert J. Griesbach, a plant geneticist with USDA's
Agricultural Research Service. He is using the gene gun in relation to changing the color of orchids.

http://www.nal.usda.gov/bic/Federal_Biotech/news/1994.news/0566.94.html
Dr Griesbach's page at the National Arboretum:

http://www.usna.usda.gov/Research/~rjg.html

credits him with developing a dwarf, continuous
flowering Hemerocallis named Chesapeake Belle. 1996 (ELFIN STELLA X SHORTY)

This short article is a must read!  It describes how Dr Griesbach's lab has created an orange petunia, and a blue rose.  (Oddly enough, he did use genes from corn and "stuck it in the petunia's cells" to yield the orange flowers.

http://www.usna.usda.gov/Research/flowercolor.html

This article also states that one can change a red flower to blue by altering the pH inside the cells.


Best to all :-)

Brian Mahieu, AHS region 11, zone 5, north-central Missouri USA

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