QTL Mapping of a Leaf-lobed Trait in Brassica campestris QTL Mapping of a Leaf-lobed Trait in Brassica campestris Expression of PttGA2Oox1 Gene in Transgenic Tobaccos Plants Isolation,Subcellular Location and Expression of MdGA20ox1 Gene from Apple Isolation,Subcellular Location and Expression of MdGA20ox1 Gene from Apple Cloning and sequence analysis of PqGA20ox gene in Panax quinquefolium