title: Nucleo-cytoplasmic interactions affect RNA editing of cox2, atp6 and atp9 in alloplasmic male-sterile rice (Oryza sativa L.) lines.
abstract: RNA editing plays an important role in the regulation of mitochondrial gene expression in flowering plants. In this study, we examined RNA editing of the mitochondrial genes cox2, atp6 and atp9 in five isonuclear alloplasmic male-sterile lines (IAMSLs) of rice to investigate whether different cytoplasmic types affect RNA editing. Although many editing sites were conserved among the three genes, we found that the editing efficiency of certain sites was significantly different between different IAMSLs or between IAMSLs and their corresponding cytoplasmic donor CMS lines. Furthermore, several editing sites were found to be either present or absent in certain IAMSLs and their corresponding CMS lines. These results indicate that nuclear loci, as well as unknown editing factors within the mitochondria of different cytoplasmic types, may be involved in RNA editing, and they suggest that RNA editing in plant mitochondria is affected by nucleo-cytoplasmic interactions.
authors: State Key Laboratory of Hybrid Rice, Key Laboratory for Research and Utilization of Heterosis in Indica Rice, Ministry of Agriculture, College of Life Sciences, Wuhan University, Wuhan, 430072, People's Republic of China.
authors: Jihong
authors: J
authors: Hu
authors: Rong
authors: R
authors: Yi
authors: Hongyuan
authors: H
authors: Zhang
authors: Yi
authors: Y
authors: Ding
mesh_terms: D051546:Cyclooxygenase 2 / Q000096:biosynthesis / Q000235:genetics*; D025261:Mitochondrial Proton-Translocating ATPases / Q000096:biosynthesis / Q000235:genetics*; D012275:Oryza / Q000235:genetics*; D017393:RNA Editing
chemical_list: D051546:Cyclooxygenase 2; D025261:Mitochondrial Proton-Translocating ATPases