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单击此处编辑母版标题样式,*,*,单击此处编辑母版标题样式,*,*,The Functions of RNA-Dependent RNA,Polymerases in Arabidopsis,The Arabidopsis Book July 31, 2011,-2011 American Society of Plant Biologists,CONTENT,1,Abstract,2,Introduction,3,RDR Proteins In Arabidopsis Development,4,RDRS In Pathogen Resistance,5,RDRS In,Abiotic,Stress Response,6,Conclusion,ABSTRACT,RNA,Sliencing,mRNA abundance,miRNAs,or,siRNAs,dsRNA,Regulate,(single-stranded RNA),(double-stranded RNA),ssRNA,(,microRNAs,or,Small-interfering,RNAs,),RDRs,INTRODUCTION,1.1 Classification of,RDRs,RDRs,1.2,RDRs,in,smRNA,biogenesis,RDR,RDR,RDR,RDR1,RDR2,RDR6,RDR3,RDR4,RDR5,DLDGD,DFDGD,RNA,诱导的,DNA,甲基化过程,hsiRNAs,(heterochromatic,siRNAs,),RDR PROTEINS IN ARABIDOPSIS DEVELOPMENT,RDR6 function in Arabidopsis vegetative,（营养,）,phase change,The function of RDR6 in leaf,adaxial-abaxial,polarity,（极性）,The function of RDR6 in lateral root,（侧根）,production,RDR6 and,anthocyanin,(,花青素,),production,RDRs,and plant reproduction,Conservation of RDR developmental modules in plants,(A) rdr6-11 mutant leaves are more down,wardly,curled.,(B) rdr6-11,leavesare,more elongated, and the first leaf with,abaxial,trichomes,appears earlier. The first three leaves of representative plants are shown.,(C)rdr6-11 flowers display stigma,exsertion, which reduces self-fertility.,Scalebar,= 1 mm.,RDRS IN PATHOGEN RESISTANCE,RDRs,in antiviral resistance,RDRs,in antibacterial resistance,RDRs,in,antinematode,(,线虫,),resistance,RDRS IN ABIOTIC STRESS RESPONSE,Figure 7. The expression patterns of all six Arabidopsis RDR genes in the,stress conditions from tiling,microarray,experiments.,CONCLUSION,THANKS,