Re: Clones

David,

Last spring, I ordered some Achillea millefolium Colorado Strain. You 
say this is similar to "breeds," in that a boxer dog could be brindle, 
black or brown? That this yarrow could be pink, yellow, or white as 
opposed to A. millefolium "Sunny Seduction" is always that certain 
yellow? Not that color could be the only factor.

I understand from your last paragraph why it is commercially important 
to keep track of clones.

Darlene


On 12/8/2012 6:29 PM, David Ferguson wrote:
>
> Thought I might add another little bit to the "clone" topic. It was 
> defined here well, but there is an element that I didn't see brought up.
>
> In fact there are /*many */cultivated "clones" of Iris. Every named 
> cultivar is a clone (or clonally reproduced, if it sounds better that 
> way), and in fact the definition of a cultivar might be considered as 
> a "clone" (= "vegetatively propagated" individuals), all of the same 
> individual plant (a plant grown from one seed or spore - originally). 
> However, the definition of a cultivar (not so much with Iris, but in 
> other cultivated plants) is sometimes expanded to include "strains", 
> which are the same as "breeds" of animals, in which the plants are all 
> basically identical, but are a closely related "family" of (often 
> inbred) individuals that breed true to type from seed or spore. I 
> don't like the use of the term "cultivar" to include this later 
> category, but none-the-less it often does (you might see a strain of 
> Marigold, Petunia, or other annual flowers called a "cultivar", as you 
> might a strain of vegetables (such as a 'Big Boy' Tomato). "Strain" is 
> a much better term for those.
>
> In many groups of plants, you will hear people speak of a "clone". You 
> may hear of "clone A", "clone B"; or, a "female [pistillate] clone" 
> and a "male [staminate] clone", and so on. This is a way of keeping 
> track of the individuals propagated from each original stock plant, 
> and is basically the same as giving cultivar designations instead of 
> commercial cultivar names. So, when they speak of "the same clone" or 
> a "different clone" they are just keeping track of individuals. Often 
> it is important, because in many plants you need two "clones" to 
> produce viable seeds (many plants are not self fertile, and if you 
> make cuttings from one plant, they are still identical and 
> incompatible, even if they have different roots). Growers may be 
> consern! ed with keeping a stock of a certain number of each clone in 
> order to keep a viable base for producing seeds or offspring to sell 
> or study, or to produce new cultivars from.
>
> Dave Ferguson
> in central New Mexico
> Email: dmoore@carolinarubber.com <d*@carolinarubber.com>
> 

-- 
Darlene Moore
Carolina Rubber  & Specialties, Inc.
Phone: 336-744-5111    Fax: 336-744-5101
Email: dmoore@carolinarubber.com




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