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		题名	作者	年代	出处	被引量
	1	Deletional analysis of functional regions of complementary sense promoter from cotton leaf curl virus显示文摘Complementary sense promoter from cotton leaf curl virus (CLCuV) is a novel plant promoter for genetic engineering that could drive high-level foreign gene expression in plant. To determine the optimal promoter sequence for gene expression, CLCuV promoter was deleted from its 5’ end to form promoter fragments with five different lengths, and chimeric gus genes were constructed using the promoterdeletion. These vectors were delivered into Agrobacterium and tobacco (Nicotiana tabacum L cv. Xanthi) plants which were transformed by leaf discs method. GUS activity of transgenic plants was measured. The results showed that GUS activities with the promoter deleted to -287 and -271 from the translation initiation site were respectively about five and three times that of full-length promoter. There exists a c/s-element which is important for the expressing activity in phloem from -271 to -176. Deletion from -176 to -141 resulted in a 20-30-fold reduction in GUS activity in leaves with weak activity in leaves	谢迎秋刘玉乐朱祯	2000	Science China(Life Sciences)2000，43，5：	0

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