Re: More Genetics

pumpkins@mallorn.com wrote:
> 
> Harold,
> 
> 
> First do Mendelian Genetics apply to all living things, only animal 
> Applies to all plants and animals. Bacteria, fungi, viruses; also to varying degrees and circumstances. 
life
> 
> In a mono hybrid cross, organisms differing in only one trait are
> crossed.
Or we are just looking at one trait.
>
> Pumpkin seeds are swapped among growers with the receiving grower
> knowing very little about the plant the seeds came from. Can we say that
> 
> two seeds from different crosses of AG pumpkins, differ in only one
> trait?
////Since a pumpkin has thousands of genes; any two pumpkins you cross
probably differ in hundreds or thousands of genes--of course, I just
guessing and have no idea. 
> 
> Would the crossing of AG more appropriately fall under the guise of
> dihybrid cross?  Or some other classification?
////I always had my students to mostly ignore the idea of dihybrid and
trihybrid crosses, etc. We are usually only concerned about one locus at
a time. 
> 
> Remember some of us are not Phd's nor do we possess degrees in this
> field (I am a computer programmer, lived in the city all my life and
> have
> never been to a real farm). I do however have something to learn
> from people like you.
> 
> The goal is simple, grow the worlds largest pumpkin. To that end people
> have been trading seeds and studying ag. methods in an attempt to push
> the
> record. My understanding is that since the advent of the Dill AG and
> P&P,
> world pumpkin weights have exploded.
> Please help us understand the effects of crossing with regards to the
> stated goal.
> 
> Greg
//// I have only been on this list a week or so, and I should not be
speaking so much as I know nothing about pumpkin genetics. I understand
the mendelian genetics, but anyone can after a few hours study with a
book having good illustrations. 
//// I suppose getting the genes together to grow a big pumpkin is no
different than growing a high yielding corn. Therfore, studying corn
breeding methods etc might be useful, but I do not recall any such
articles and now that we have only big industrial corn breeders perhaps
it is all trade secrets and unpublished. 
////I was really interested in genetics as a kid and began making
crosses at age 6 or 8 and could hardly wait to see what came out. When I
saw what had been accomplished by mid 50s, figured the golden days of
corn breeding was over. In a way I was correct as universities were soon
outdone by the companies and the days of trading corn seeds were sort of
over. 
  I am also amazed at the explosion of pumpkin weights. 
-- 
Harold Eddleman Ph.D. Microbiologist.       i*@disknet.com 
Location: Palmyra IN USA; 36 kilometers west of Louisville, Kentucky
http://www.disknet.com/indiana_biolab = Agriculture, science projects
and info for amateurs, gardeners, farmers, teachers, kids
http://wwbbs.otherside.com/PUBLIC/HOMEPAGE/haroldeddleman_303/INDEX.HTM
  Home Science Projects: fun for parent and child, Computer programs 
http://ibl.webjump.com/ger.htm <== Simple german for beginners.



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