I have read some of the posting on the use of the word ?clone(s)? which I
found somewhat confusing. It makes a difference if one uses the word in
its technical sense (which I recommend it use be restricted to on a website
such as this) or in a general, slang ill-defined sense. Technically clones
are all individuals derived by mitotic divisions from a single parental
individual. It is also commonly defined as all the organisms whose genetic
information is identical to that of the parent organism from which it was
created including those produced by parthenogenesis and apomixes. If the
word is used in a very general sense it often becomes difficult to know what
the author is trying to convey.
Vic
Victor W. Lambou
272 Pine Lane
Crawfordville, FL 32327
850-925-1819
-----Original Message-----
From: i*@yahoogroups.com [mailto:i*@yahoogroups.com] On
Behalf Of Darlene Moore
Sent: Wednesday, December 12, 2012 12:11 PM
To: i*@yahoogroups.com
Subject: Re: [iris-species] Clones
Jamie,
I think I have this straight but as you say "...as one often thinks a clone
is only created through this {tissue culture} method of reproduction..." I
had always thought of "clones" in popular Science Fiction Literature and in
terms of mammals.
Your definition of "any defined genetic version of a plant" do you mean
defined by the taxonomy community?
Mark mentions Iris virginica ALBA. How is that classified and where did it
come from?
A spontaneous mutation would be called what? Is a spontaneous mutation in
roses called a "sport?"
Thanks,
Darlene
On 12/8/2012 7:33 AM, JamieV. wrote:
>
> Darlene,
>
> I would add to Mark's definition that a clone is any defined genetic
> version of a plant. That is to say, it must not be a species, but may
> be. Any two plants (species, hybrids, it doesn't matter), when
> crossed succesfully, create a generation of offspring. Any of these
> offspring belong to that particular cross, which we refer to as a
> grex. Each individual is a clone, as it is genetically unique. Any
> vegetative increase are parts of the same clone. This would include
> tissue culture, for the most part, as well. Thus we have the word
> 'cloning' in use to refer to tissue culture. A bit of a misnomer, as
> one often thinks a clone is only created throught this method of
> reproduction, which would be untrue. Everytime you divide a specific
> plant, you are increasing the clone. Every new growth of a plant is
> an increase of this clone. They are genetically identical (excluding
> spontaneous mutation, which can take place).
>
> In commerce, a named variety, that is vegetatively increased, is a
> distinct clone. We see this with orchids, garden perennials, even
> trees and shrubs. Often, plants are sold under incorrect names, which
> confuses the issue, but i think we have all learned to take this in
> stride.
>
> Jamie
>
> Am 07.12.2012 15:24, schrieb Darlene Moore:
>> Mark,
>>
>> Thank you for your sentence "Clones are variations within a species."
>> I enjoyed the Historic or Heritage Daylilies site. Hemerocallis
>> fulva is a favorite of mine also.
>>
>> Your photo of Iris virginica is much more blue than the irises I have.
>> About twenty-five years ago I bought these from Louisiana Nursery in
>> Opelousas. I have moved twice but carried them with me. Last winter
>> something started eating the rhizomes. I blamed voles as my cat of
>> 13 years died so I thought he had kept the critters at bay. The
>> population of irises was reduced by two-thirds, but are now coming
>> back --- we took in two kittens from the local animal shelter last
>> May. It will be a "scorched earth" policy around the house I'm sure!
>>
>> I have attached two photos of my Iris virginica.
>>
>> Darlene
>>
>>
>> On 12/5/2012 8:10 PM, Mark A. Cook wrote:
>>>> How does one know they are clones? And does it matter to anyone?
>>> Darlene,
>>> They are probably variants within the species. Clones are
>>> variations within a species. While not Irises, there are many clones
of
>>> Hemerocallis fulva, which is a Daylily species. You can see 6 of
>>> them here http://members.tripod.com/bigalligator_1/id9.html
>>>
>>> Jumping back to Irises, the first two photos on
>>> http://members.tripod.com/bigalligator_1/id20.html are of two types of
Iris
>>> virginica. The white one is the clone ALBA. The bluish one, I am not
sure
>>> if it is a clone or not. If anyone knows, please let me know.
>>>
>>> Mark A. Cook
>>> b*@bellsouth.net
>>> Dunnellon, Florida.
>>>
>>>
>>>
>>>
>>> ------------------------------------
>>>
>>> Yahoo! Groups Links
>>>
>>>
>>>
>>>
>>>
>>>
>
>
> --
> Jamie V.
>
> _______________________
>
> Köln (Cologne)
> Germany
> Zone 8
>
--
Darlene Moore
Carolina Rubber & Specialties, Inc.
Phone: 336-744-5111 Fax: 336-744-5101
Email: d*@carolinarubber.com
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