AtRRP6L1, a Homolog of Conserved Yeast Exosomal Rrp6p, Plays an Important Role in Transcriptional Gene Silencing in Arabidopsis
Dear Editor,RNA-directed DNA methylation (RdDM) is a mechanism for achieving sequence-specific de novo DNA methylation.ROS1 encodes a DNA glycosylase/lyase,which demethylates DNA (Gong et al.,2002).ros1 causes the transcriptional gene silencing (TGS) of the LUCtransgene driven by the stress-responsive RD29A promoter and endogenous RD29A (Gong et al.,2002).From our previous screening for second-site suppressors of ros1,NRPD4 and RDM4,first as RdDM components,were identified (He et al.,2009a,2009b).To discover new regulators of the RdDM pathway,we conducted an efficient genetic screen in this study and found a novel RdDM component:AtRRP6L1.
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This work was supported by the National Science Council of the Republic of China Taiwan under grants NSC101-2911-Ⅰ-005-301 and NSC-102-2911-Ⅰ-005-301; the Ministry of Education,Taiwan,R.O.C.,under the ATU plan; and the Shanghai Center for Plant Stress Biology,Chinese Academy of Sciences.
2014-11-03（万方平台首次上网日期，不代表论文的发表时间）
1490-1493
