Re: 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
>>> bigalligator@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: dmoore@carolinarubber.com




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