Re: Clones

 

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.




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