ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2008
The mitochondrial genome of a cytoplasmic male sterile line of perennial ryegrass (Lolium perenne L.) contains an integrated linear plasmid-like element.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Factors contributing to mitogenome size variation and a recurrent intracellular DNA transfer in Melastoma.BMC genomics · 2023Article
- Characterization and practical use of self-compatibility in outcrossing grass species.Annals of botany · 2021Review
- Mitochondrial Phylogenomics of Fagales Provides Insights Into Plant Mitogenome Mosaic Evolution.Frontiers in plant science · 2021Article
- The alternative reality of plant mitochondrial DNA: One ring does not rule them all.PLoS genetics · 2019Article
- Identification of Extrachromosomal Linear microDNAs Interacted with microRNAs in the Cell Nuclei.Cells · 2019Article
- In Silico Identification of Candidate Genes for Fertility Restoration in Cytoplasmic Male Sterile Perennial Ryegrass (Lolium perenne L.).Genome biology and evolution · 2017Article
- Linear Plasmids and the Rate of Sequence Evolution in Plant Mitochondrial Genomes.Genome biology and evolution · 2016Article
- Design of an F1 hybrid breeding strategy for ryegrasses based on selection of self-incompatibility locus-specific alleles.Frontiers in plant science · 2015Article
- Mitochondrial Genome Sequence of the Legume Vicia faba.Frontiers in plant science · 2013Article
- Article
- The mitochondrial genome of the legume Vigna radiata and the analysis of recombination across short mitochondrial repeats.PloS one · 2011Article
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Authors and funding
3 authors.
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Abstract
The mitochondrial genome of a cytoplasmic male sterile line of perennial ryegrass (Lolium perenne L.) was shown to contain a 9.6 kb element, LpCMSi, that is absent in the mitochondrial genome of fertile lines. LpCMSi contains the previously described chimeric gene orfC9, and three additional open reading frames (orfs) encoding a unique 45 kDa predicted protein of unknown function, a family B-like DNA polymerase (LpDpo), and a phage-type single subunit RNA polymerase (LpRpo). The latter two proteins shared significant similarity with DNA and RNA polymerases encoded by extrachromosomal linear mitochondrial plasmids of plants and fungi, and also to integrated plasmid-like sequences found in various plant and fungal mitochondrial genomes. Transcripts for both LpDpo and LpRpo were detected by RT-PCR in mitochondria of the CMS line. PCR-based investigations further revealed the presence of LpCMSi-like sequences in fertile L. perenne lines that are likely maintained as low-copy number extrachromosomal replicons. The absence of integrated forms of LpCMSi in the mitochondrial genome of fertile lines suggests that LpCMSi integration adjacent to the atp9 gene may be responsible, directly or indirectly, for the sterility phenotype of the CMS line.
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