Cloning and sequence analysis of the chalcone synthase gene (CHS) from Fagopyrum dibotrys Silencing of Chalcone Synthase Genes by Artificial microRNA in Petunia Isolation and Tissue-specific Expression of Chalcone Synthase Gene Ps-CHS1 in Tree Peony Regulatory Elements and Functional Analysis of Chalcone Synthase Gene Promoter from Ginkgo biloba L. Regulatory Elements and Functional Analysis of Chalcone Synthase Gene Promoter from Ginkgo biloba L. Cloning and sequence analysis of chalcone synthase gene Chs from Fagopyrum esculentum Isolation and Tissue-specific Expression of Chalcone Synthase Gene Ps-CHS1 in Tree Peony Cloning, bioinformatic analysis, and expression of chalcone synthase gene in Carthamus tinctorius Cloning and Sequence Analysis of Chalcone Synthase Gene in Ornamental Peach Cloning of Chalcone Synthase Gene in Lilium and Expression Analysis of Flower Colour Changes in Transgenic Tobacco Cloning and Sequence Analysis of Chalcone Synthase Gene in Ornamental Peach Silencing of Chalcone Synthase Genes by Artificial microRNA in Petunia