HYB: Width of Falls

Linda Mann wrote:

:  Is much known about the inheritance of petal width?  Is it a simple
:  dominant/recessive thing or is it controlled by a whole suite of
:  unrelated (on different chromosomes? loci?)(I apologize for my lack of=

:  attention to homework) genes?

In arilbreds, it definitely seems to be controlled by a "suite" of
interacting genes -- and it exhibits a dosage effect.  Someone who has
worked with TBs more than I have may be able to tell you more about them.=


:  I am especially interested in this because most of the "truly tough"
:  irises seem to all be older ones with strappy falls.  While I don't li=
ke
:  rigid, horizontal falls, I do like wide ones with good substance and
:  more of a waterfall form.  If I cross strappy flowers with wide petall=
ed
:  ones, can I do a Punnett square for petal width on the basis of...??

:  Ditto for horizontal versus waterfall shape.

Eventually, yes.  It is experiments like this, and observations of the
seedling segregation, that make it possible to construct the predictive
charts.

:  I guess I'll be finding out on my own if I keep playing pollen dauber,=

:  but it would be nice to dream and scheme with more knowlege about what=

:  the possibilities are.

Yes, you will.  But go ahead and dream and scheme using what is already
known -- and make your own crosses to learn more.  =


Sharon McAllister
73372.1745@compuserve.com
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