Re: Reverse polyploidy?

[Mike Compton <compton@UWPLATT.EDU>]

Hapoid inducers are generally plant genotypes that can be used as a male
parent in a cross but cannot fertilize the egg of the female parent.
However, in some limited cases the egg is stimulated to go through mitosis
to form a haploid embryo.

At 10:45 PM 8/28/02 -0700, you wrote:
> At 12:01 AM 8/29/2002 -0500, Mike Compton <compton@UWPLATT.EDU> wrote:
> >There have been reports with autotetraploid tobacco in which the original
> >tetraploid was anther cultured to regeneration haploid (2n) plants. The
> >haploid regenerants were grown out and subjected to another round of anther
> >culture to produce monoploid (1n) plants. I believe similar work has been
> >done with potato to obtain monoploids.
>
> Thanks, it's always nice to know that one's hunches are in the ballpark.
>
> >Another option would be to use sexual crosses with "haploid inducers."
>
> With bamboo that may not flower for 50 - 100 years?  Sorry, I'm already 51,
> I don't have the time. 8>
>
> However, what are "haploid inducers?"  New term to me...
>
>
> Warm Regards,
> Martin Schaaf, M.S., EMDR II, San Francisco Bay Area
> Projects and interests:
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>
> "We're waist deep in the Big Muddy and the damned fool says to push
> on."   - Pete Seger
>
>
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Michael E Compton
Associate Professor
School of Agriculture
University of Wisconsin-Platteville
Platteville, WI 53818
ph. 608-342-1323
fax 608-342-1395