mitochondria, plastids and DNA inheritance

Paul Wakenight pw at cubsps.bio.columbia.edu
Mon Feb 21 22:09:43 EST 1994


I have a few questions.  What is the fate of paternal plasid DNA?
If it is transmitted into the egg (as mentionned earlier) is it able
to enter the respective plastid?  How does it know which plasid to enter?
It seems to me that PCR could be applied to fractionated eggs immediately 
following fertilization to answer these questions.

Also, wouldn't diploidy in plastids and the adaptive advantages of recombi-
nation require mitotic machinery similar to that in the nucleus?  Also, what
selective advantage could arise from dipl. - is it wrong to assume that      
plastids have approached maximal effectiveness for their given function?

Paul Wakenight
pw at cubsps.bio.columbia.edu




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