apomixis; was RE: Plants of hybrid origin

Jim McKenney jimmckenney@jimmckenney.com
Tue, 15 Jun 2010 07:08:32 PDT
The term apomixis and by extension the concept of apomictic species have
come up in our discussion of plants of hybrid origin. 


Since plants which arise from apomixis are said to be genetically identical
to the parent from which they derive, they form, in effect, clones.


Incidentally, this term apomixis antedates any technology which would allow
one to prove what the term purports to assert: that the entities in question
are in fact genetically identical. Until very recently there was no reason
to regard any claim of apomixis as anything but a hypothetical assertion.
Even now, has a comparison of the entire genomes of two entities been done?


From a taxonomic point of view, I assert that the so-called "microspecies"
formed by apomictic populations are misclassified; they have been classified
at rank species, but they should be classified at rank Individuum. They
really are no different than the clones of garden daffodils or tulips. 


Jim McKenney


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