Genomically multiplied rapeseed plants, compositions derived therefrom and uses of same

Abstract

A rapeseed plant having a multiplied genome being at least as fertile as a euploid rapeseed plant isogenic to the genomically multiplied plant grown under similar conditions.

What is claimed is: 
     
         1 . A  Brassica napus  rapeseed plant having a doubled amphidiploid genome being at least as fertile as a euploid  Brassica napus  rapeseed plant isogenic to the genomically doubled plant grown under similar conditions, wherein fertility is determined by number of seeds per plant. 
     
     
         2 . The plant of  claim 1 , exhibiting genomic stability for at least 2 generations. 
     
     
         3 . The plant of  claim 1 , having a seed weight per 40 seeds exceeding that of said euploid rapeseed plant. 
     
     
         4 . The plant of  claim 1 , having seed yield or seed weight at least as similar to that of said isogenic euploid plant grown under the same conditions and being of the same developmental age. 
     
     
         5 . The plant of  claim 1 , having photosynthetic efficiency at least as similar to that of said isogenic euploid plant grown under the same conditions and being of the same developmental age. 
     
     
         6 . A plant part of the rapeseed plant of  claim 1 . 
     
     
         7 . The plant part of  claim 6 , being a seed. 
     
     
         8 . The plant part of  claim 7 , wherein said seed is a hybrid seed. 
     
     
         9 . Rapeseed meal produced from the plant of  claim 1 . 
     
     
         10 . An isolated regenerable cell of the rapeseed plant of  claim 1 . 
     
     
         11 . The cell of  claim 10 , exhibiting genomic stability for at least 2 generations in culture. 
     
     
         12 . The cell of  claim 10  being from a meristem, pollen, a leaf, a root, a root tip, an anther, a pistil, a flower, a seed or a stem. 
     
     
         13 . A tissue culture comprising the regenerable cell of  claim 10 . 
     
     
         14 . A method of producing seeds of rapeseed, comprising self-breeding or cross-breeding the plant of  claim 1 . 
     
     
         15 . A method of producing rapeseed oil, the method comprising:
 (a) harvesting seeds of the rapeseed plant of  claim 1 ; and   (b) processing said seeds so as to produce the rapeseed oil.   
     
     
         16 . A tissue culture comprising the regenerable cell of  claim 12 .