Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2008, Vol. 24 ›› Issue (4): 89-93.

• 农业生物技术科学 • Previous Articles     Next Articles

Cloning and Function Analysis of a Flower-specific Expression Promoter PCHS

Li Gang, Tao Meiying, Jia Caihong,Zhang Jianbin, Xu Biyu Jin Zhiqiang   

  • Received:2008-01-11 Revised:2008-01-16 Online:2008-04-05 Published:2008-04-05

Abstract: A polymerase chain reaction(PCR)amplification was used to isolate a flower-specific expression promoter PCHS from Arabidopsis genomic DNA. Sequence analysis revealed that PCHS was 531 bp in total length and shared significant nucleotides identity 99% with GenBank databases, which contained four flower-specific expression regulatory elements. Intermediate vector pPCHS was constructed by inserting the promoter to the upstream of GUS in pB1121, where the original CaMV35S promoter was replaced by the PCHS promoter. The flower, stem, leaf ,and root of petunia hybrida were transformed via Agrobacterium tumefaciens. Histochemical localization of GUS activity indicated that the PCHS promoter could confer a flower-specific expression pattern to GUS.