🚀 go-pugleaf

In article <28v7ou$f8d@news.u.washington.edu>, johnreed@stein1.u.washington.edu (John Reed) writes:
> I am interest in knowing whether parthanogenesis has evolved in the male 
> sex of any species.  I would presume not, for evolutionary reasons, but I 
> would like to know for sure.  I would also like to know other peoples 
> opinions as to why this has not occured.  My last question is simply: in 
> what types of organisms does parthanogenesis occur?  I know it occurs in 
> insects, what about other arthropods, plants (I believe it does), other 
> animals, fungi?  Thanks for any replies.
> 

I know that parthenogenesis occurs in some lizards - There was an article on an
American desert species a year or two ago in Sci Am.
On males - they tend not to have the reproductive apparatus, perhaps? If males
had functioning female I suspect we would call them female. I do not think this
issue could be resolved chromosomally in all species. I understand that
crocodilian sex is determined by incubation temperature?
___________________________________________________________________________
ROBERT BOOT                                             R.BOOT@cc.uq.edu.au
HERSTON MEDICAL LIBRARY
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