Plant genome sizes

Oliver Sparrow ohgs at chatham.demon.co.uk
Tue Jun 28 02:05:13 EST 1994


The enormous genome of wheat, the apparent lack of link between genetic
mass and performance is - to me, at any rate - something of a mystery.
Does anyone have an idea - other than chance, 'ploidy and parasitic DNA -
why this occurs? The jack bean has (I think) hundreds of copies of the urease
gene because it has accidentally happened upon this as a storage protein;
but as to the rest...? Does wheat really have so complex a repertoire of
responses compared to, say, barley?
 
_________________________________________________

  Oliver Sparrow
  ohgs at chatham.demon.co.uk



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