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Re: Transposable elements

In a message dated 8/13/1999 11:46:37 PM Central Daylight Time, 
halinar@open.org writes:

<< The high rate of sporting that some Hostas can give 
 under the right conditions cannot be explained by mutations in the 
 sense that we normally think of mutations.  There is something going 
 on with Hostas that is unique to Hostas.  

Since most Hosta "species" are polyploids there might be unstable regions of 
expression in the DNA or a faulty mechanism in the transcription in the 
plastogenes or localized region on said genes.

To me it appears that most sports occur from those plants that are already 
sports and that Most Hosta are stable.  Since most Hosta in cultivation are 
the result of interspecific crosses, some were a mutation in the expression 
of the plastogenes has occurred.

Do the natraly occuring species of Hosta show the same degree of sporting?
Do some interspecific crosses produce more sports than others?

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