Steve..does your count consider proximity to targets? PAP
At 12:35 PM 2/19/99 -0500, you wrote:
>The answer depends on how close you look. At the gross phenotypic level
>(seeds, seedlings, plants, etc.) the frequency of detectable recessive and
>dominant mutations in ca. 10,000 independent transpositions of Ac is between
>5-10%. The problem is correcting this value for the frequency of mutations
>that are Ac-induced. That is, many of these mutations (over half) are not
>caused by Ac but by some other means including Ds transpositions.
>Nevertheless, the data does indicate that at least 9 out of 10 independent
>Ac insertions lead to no detectable phenotype at the *gross phenotypic
>level*.
>
---------
Peter A. Peterson
Agronomy Department
Iowa State University
Ames, Iowa 50011
OFFICE: [515] 294-9652
FAX: [515] 294-2299
pap at iastate.eduhttp://www.public.iastate.edu/~pap/homepage.html
Please examine this website for a book on Maize Genetics and Breeding in
the 20th Century
http://www.worldscientific.com/books/lifesci/3285.html
