Most iris that are named are a clone, given a cultivar name as per
common horticultural practice. Because of this, a reproduction of
original clone will not work. There will be some genetic differences
that may not show up until they are grown side by side in the same
environment.
Over time, pants can drift in subtle was that can be hard to
recognize. So there can be genetic divergences between same cultivar
as grown in different locations.
Provenc!
e is still the best way to identify a historic iris, as to
original identity. Matching un-named plant s to a historic name is a
problem. There are many subtle observational data to use, by someone
experienced in these.
If you wish to get more precise, you could use a genetic fingerprinting
method. None has specifically been developed for iris, but if you
wanted to do a comparison between a named cultivar and a possible
match it could be done. Use same chromosome cutting enzyme on both and
run product on a gel and compare. No so hard if you have a lab set
up, but expensive if you have to have a lab do it. Cheaper just to
buy plant known to be correctly identified. If we don't have an
original to compare to, then best provence would have to be used.
Recovering a strain that is named can be done as it depends on
phenotype, not genotype. Can't be done if name is based on a clone
identity.
Chuck Chapman&nb!
sp;
---------------------------!
-------------------------------
From: "s*@bellsouth.net [iris-species]"
<i*@yahoogroups.com>
To: i*@yahoogroups.com
Sent: Wednesday, February 11, 2015 12:33:00 AM
Subject: Re: [iris-species] naming irises
I can't be su!
re my reasoning is in line with that of the well informed
but I personally do not equate clone and cultivar even when the
cultivar is clonal in the singular sense. I personally set up a
conceptual separation that being clonal is simply a characteristic of
some cultivars. It a characteristic so not conceptually of the same
logical type (not meaning botanical type here!). Is there some tweaking
I can do on this?
Bob, all the cautions and qualifications you speak of I can follow!
perfectly. Not to criticize what you've s!
aid in the least, it was very
useful, but the question of how to identify or reestablish a cultivar
in light of these sorts of things still remains to be answered. So I
cast a broad net for ponders even if answers aren't at hand. What are
the prospects for resolving these problems systematically and moving
towards a methodology for identifying historic irises?,This problem
can't be unapproachable on every front? If it is then our systematics
has an broad area needing conceptual work it seems. If good examples
exist on other plant groups fronts then I'd love to hear so I can
explore. Or if we are exploring new territory then the iris world could
help lay groundwork for others.
Shaub Dunkley
--
Bob Pries
Zone 7a
Roxboro, NC
(336)597-8805
