ArticleJournal of molecular evolution2012
Genes and processed paralogs co-exist in plant mitochondria.
Article in Journal of molecular evolution, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 16 citations in OpenAlex.
- Endosperm culture-based allotriploid hybrid production from an interspecific cross of Haemanthus spp.: new insights into polyploidization and hybridization.BMC plant biology · 2025Article
- Mitochondrial Retroprocessing Promoted Functional Transfers of rpl5 to the Nucleus in Grasses.Molecular biology and evolution · 2017Article
- Mitochondrial genome evolution in Alismatales: Size reduction and extensive loss of ribosomal protein genes.PloS one · 2017Article
- Localized Retroprocessing as a Model of Intron Loss in the Plant Mitochondrial Genome.Genome biology and evolution · 2016Article
- The complete sequence of the mitochondrial genome of Butomus umbellatus--a member of an early branching lineage of monocotyledons.PloS one · 2013Article
- Can phylogeny predict chemical diversity and potential medicinal activity of plants? A case study of Amaryllidaceae.BMC evolutionary biology · 2012Article
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
RNA-mediated gene duplication has been proposed to create processed paralogs in the plant mitochondrial genome. A processed paralog may retain signatures left by the maturation process of its RNA precursor, such as intron removal and no need of RNA editing. Whereas it is well documented that an RNA intermediary is involved in the transfer of mitochondrial genes to the nucleus, no direct evidence exists for insertion of processed paralogs in the mitochondria (i.e., processed and un-processed genes have never been found simultaneously in the mitochondrial genome). In this study, we sequenced a region of the mitochondrial gene nad1, and identified a number of taxa were two different copies of the region co-occur in the mitochondria. The two nad1 paralogs differed in their (a) presence or absence of a group II intron, and (b) number of edited sites. Thus, this work provides the first evidence of co-existence of processed paralogs and their precursors within the plant mitochondrial genome. In addition, mapping the presence/absence of the paralogs provides indirect evidence of RNA-mediated gene duplication as an essential process shaping the mitochondrial genome in plants.
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