00453nam a2200157Ia 4500008004100000100001700041245010200058260001700160300001300177650001900190650001600209650001800225650002300243650000900266700002000275220216s9999    xx            000 0 und d  aSoong Keming 0aPolyphyletic origins of Brassica napus: New evidence based on organelle and nuclear RFLP analyses  bGenomec1992  a992-1001  aBrassica napus  aChloroplast  aMitochondrion  aMolecular taxonomy  aRFLP  aOsborn Thomas C