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Transcription and Post-Transcription Process in Plant Mitochondria

Plant mitochondria genome, as one of the three genetic systems in plant cell, is specific in transcription and post transcription process: the genome is larger, and its variance is significant among different species; many features are also found in the transciptional process, for example, transcription could start from different sites of the coding region; in high plant, most of the mitochondrial introns belong to groupⅡ intron, some of which could encode protein; C U transition is also obvious character during the post transcriptional editing process; in mitochondria, RNA polyadenylation make transcript unstable, as is different from that of nucleus. Here, we reviewed the progress of research in transcription, editing, splicing, polyadenylation of plant mitochondria genome.