Molecular Cloning and Expression of Cycloartenol Synthase Gene from Dioscorea zingiberensis Cloning of cycloartenol synthase gene from Eleutherococcus senticosus and its expression analysis Cloning of cycloartenol synthase gene from Eleutherococcus senticosus and its expression analysis Cloning and Expression Analysis of Cycloartenol Synthase Gene from Salvia miltiorrhiza Bunge Construction of RNA interference vector carrying two genes of DS and CAS of Betula platyphylla Suk(Birch.) Studies on Chemical Constituents in of Ervatamia hainanensis Cloning and sequence analysis of cycloartenol synthase gene from Paris polyphylla var. yunnanensis Cloning and sequence analysis ofcycloartenol synthase gene from Paris polyphylla var. yunnanensis