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https://hdl.handle.net/2440/72409
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Type: | Journal article |
Title: | Plastid Sequences Contribute to Some Plant Mitochondrial Genes |
Author: | Wang, D. Rousseau, M. Timmis, J. |
Citation: | Molecular Biology and Evolution, 2012; 29(7):1707-1711 |
Publisher: | Oxford Univ Press |
Issue Date: | 2012 |
ISSN: | 0737-4038 1537-1719 |
Statement of Responsibility: | Dong Wang, Mathieu Rousseau-Gueutin and Jeremy N. Timmis |
Abstract: | DNA of plastid (chloroplast) origin comprises between 1% and 10% of the mitochondrial genomes of higher plants, but functions are currently considered to be limited to rare instances where plastid tRNA genes have replaced their mitochondrial counterparts, where short patches of mitochondrial genes evolved using their homologous plastidic copies by gene conversion or where a new promoter region is created. Here, we show that, in some angiosperms, plastid-derived DNA in mitochondrial genomes (also called mtpt for mitochondrial plastid DNA) contributes codons to unrelated mitochondrial protein-coding sequences and may also have a role in posttranscriptional RNA processing. We determined that these transfers of plastid DNA occurred a few to 150 Ma and that mtpts can sometimes remain dormant many millions of years before contributing to the mitochondrial proteome. |
Keywords: | chloroplast DNA transfer mitochondrion mtpts. |
Rights: | © The Author 2012 |
DOI: | 10.1093/molbev/mss016 |
Grant ID: | http://purl.org/au-research/grants/arc/DP0986973 |
Published version: | http://dx.doi.org/10.1093/molbev/mss016 |
Appears in Collections: | Aurora harvest Genetics publications |
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