Evolutionary origin of a plant mitochondrial group II intron from a reverse transcriptase/maturase-encoding ancestor

@article{Ahlert2006EvolutionaryOO,
  title={Evolutionary origin of a plant mitochondrial group II intron from a reverse transcriptase/maturase-encoding ancestor},
  author={Daniela Ahlert and Katrin Piepenburg and J{\"o}rg Kudla and Ralph Bock},
  journal={Journal of Plant Research},
  year={2006},
  volume={119},
  pages={363-371}
}
Group II introns are widespread in plant cell organelles. In vivo, most if not all plant group II introns do not self-splice but require the assistance of proteinaceous splicing factors. In some cases, a splicing factor (also referred to as maturase) is encoded within the intronic sequence and produced by translation of the (excised) intron RNA. However, most present-day group II introns in plant organellar genomes do not contain open reading frames (ORFs) for splicing factors, and their… CONTINUE READING
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