Chuck, on the test crosses to determine whether
this L&S phenomenon were a variant of plicata, my understanding from
either or both Keppel and Ghio is that the L&S parent was crossed with an
expressed plicata--the basic kind.
The seedlings were like those one would expect from
a plicata crossed with a non-plicata. That
is not the general sort of result that one would get if L&S were a plicata
allele. Were it an allele, various seedlings would have fallen into the
general sort of plicata, luminata, combinations of these two, or glaciata.
As I understand it, no such seedlings were observed. Both Keppel and Ghio
are genetically astute. I assume they would recognize a plicata variant in
the seedlings if there were one.
However, as in any good scientific research, a
solid test of a matter should be possible to replicate by anyone, provided the
same parameters are in place. The more the matter is tested, the more
convincing (or refuted) the result.
It is also true that almost any tangerine bearded
iris may throw a plicata when bred to them. Partly that is due to the
basic cross Dr. Loomis made between a plicata and a classic-type variegata, from
which the first and most significant progenitor of the tangerine-pink bud
phenomenon emerged. Nearly everything with
Lycopene-expressed colors except the Sass t-bearded breaks is
descended from that cross made by Loomis.
I understand that plicatas showed up in David
Hall's pink-line seedlings from time to time, but he never thought any of them
good enough to pursue.
Since the L&S varieties are all, so far,
derived from or have tangerine beards, they may *also* carry plicata, which does
tend to complicate interpretation of any test crosses.
In answer to Bill, my intention in the cross I have
and what I hope to have as seeds by summer is to determine if or whether there
is any direct connection with Umbrata spot--but we already know the two patterns
interact--as witness CINNAMON SUN, and for that matter, NOTORIOUS if I have what
they are pegged correctly. I will be most interested in your results from
the QUANDARY crosses. Interestingly, the patterns interact in a manner
similar to that between Umbrata and plicata. Chuck's suggestion of crosses
with some of the latter (especially those of G. Sutton) is a good one and may
actually be more useful in sorting out the distinctions than what I had in
mind. Use of EXPOSÉ for such a test might be interesting
Chuck, yes, in answer to your question about the
articles. I would very much like to see them. If you have them in
electronic form, that would be the simplest (and cheapest!) mode of
transmission. Let me know via personal e-mail what format(s) you have them
in, and I will let you know if I can read them directly. If not, embodying
the texts inside an e-mail rather than attached is one very good way around
I find myself quoting you rather often, so having
the concrete source materials would be a real asset!
Neil Mogensen z 7 western NC
Yahoo! Groups Links