ArticleBMC genomics2012
Complete sequence of heterogenous-composition mitochondrial genome (Brassica napus) and its exogenous source.
Article in BMC genomics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 28 citations in OpenAlex.
- Assembly and comparative analysis of the complete mitochondrial genome of Brassica rapa var. Purpuraria.BMC genomics · 2024Article
- Mechanism and Utilization of Ogura Cytoplasmic Male Sterility in Cruciferae Crops.International journal of molecular sciences · 2022Review
- Organelle Comparative Genome Analysis Reveals Novel Alloplasmic Male Sterility withInternational journal of molecular sciences · 2021Article
- Analysis of mitochondrial recombination in the male sterile Brassica juncea cybrid Og1 and identification of the molecular basis of fertility reversion.Plant molecular biology · 2021Article
- Comparison of the cytoplastic genomes by resequencing: insights into the genetic diversity and the phylogeny of the agriculturally important genus Brassica.BMC genomics · 2020Article
- Organelle genome composition and candidate gene identification for Nsa cytoplasmic male sterility in Brassica napus.BMC genomics · 2019Article
- Identification of different cytoplasms based on newly developed mitotype-specific markers for marker-assisted selection breeding in Brassica napus L.Plant cell reports · 2017Article
- A Novel Cytoplasmic Male Sterility inFrontiers in plant science · 2017Article
- Homologous recombination and retention of a single form of most genes shape the highly chimeric mitochondrial genome of a cybrid plant.The New phytologist · 2015Article
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- Effective extraction and assembly methods for simultaneously obtaining plastid and mitochondrial genomes.PloS one · 2014Article
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundUnlike maternal inheritance of mitochondria in sexual reproduction, somatic hybrids follow no obvious pattern. The introgressed segment orf138 from the mitochondrial genome of radish (Raphanus sativus) to its counterpart in rapeseed (Brassica napus) demonstrates that this inheritance mode derives from the cytoplasm of both parents. Sequencing of the complete mitochondrial genome of five species from Brassica family allowed the prediction of other extraneous sources of the cybrids from the radish parent, and the determination of their mitochondrial rearrangement.
resultsWe obtained the complete mitochondrial genome of Ogura-cms-cybrid (oguC) rapeseed. To date, this is the first time that a heterogeneously composed mitochondrial genome was sequenced. The 258,473 bp master circle constituted of 33 protein-coding genes, 3 rRNA sequences, and 23 tRNA sequences. This mitotype noticeably holds two copies of atp9 and is devoid of cox2-2. Relative to nap mitochondrial genome, 40 point mutations were scattered in the 23 protein-coding genes. atp6 even has an abnormal start locus whereas tatC has an abnormal end locus. The rearrangement of the 22 syntenic regions that comprised 80.11% of the genome was influenced by short repeats. A pair of large repeats (9731 bp) was responsible for the multipartite structure. Nine unique regions were detected when compared with other published Brassica mitochondrial genome sequences. We also found six homologous chloroplast segments (Brassica napus).
conclusionsThe mitochondrial genome of oguC is quite divergent from nap and pol, which are more similar with each other. We analyzed the unique regions of every genome of the Brassica family, and found that very few segments were specific for these six mitotypes, especially cam, jun, and ole, which have no specific segments at all. Therefore, we conclude that the most specific regions of oguC possibly came from radish. Compared with the chloroplast genome, six identical regions were found in the seven mitochondrial genomes, which show that the Brassica family has a stable chloroplast-derived source.
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