ArticleScientific reports2025
De novo assembly of the complete mitochondrial genomes of two Camellia-oil tree species reveals their multibranch conformation and evolutionary relationships.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Polyploidy drives structural and functional evolution in Camellia mitochondrial genomes.BMC genomics · 2026Article
- Assembly, annotation, and comparative analysis of the first complete mitochondrial genome ofFrontiers in plant science · 2026Article
- Assembly and Comparative Analysis of Complete Mitochondrial Genome Sequence of Endangered Medicinal PlantCurrent issues in molecular biology · 2025Article
- Assembly and analysis of the complete mitochondrial genome of an endemic Camellia species of China, Camellia tachangensis.BMC genomics · 2025Article
- Analysis of the complete mitogenomes of three high economic value tea plants (Tea-oil Camellia) provide insights into evolution and phylogeny relationship.Frontiers in plant science · 2025Article
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8 authors.
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Abstract
Camellia-oil trees are economically valuable, oil-rich species within the genus Camellia, family Theaceae. Among these species, C. oleifera, a member of Section Oleifera in the genus, is the most extensively cultivated in China. In this study, we assembled the mitochondrial genomes (mitogenomes) of two Camellia species, namely C. oleifera and C. lanceoleosa. These two species are closely related and belong to the same genus and section, with C. oleifera being hexaploid and C. lanceoleosa being diploid. The mitogenome of C. oleifera is comprised of 1,039,838 base pairs (bp), and C. lanceoleosa is comprised of 934,155 bp. Both genomes exhibit a multipartite genome structure, which is supported by our PCR experiments. We conducted codon usage and RNA editing site analysis on these two mitogenomes, which showed highly consistent results. However, analysis of repetitive sequences and mitochondrial plastid sequences (MTPTs) revealed differences between the two mitogenomes. Phylogenetic analysis indicated that these two species clustered together, suggesting a close evolutionary relationship. The collinearity analysis results showed extensive genome rearrangements in the mitogenomes of Camellia species. We successfully assembled the mitogenomes of C. oleifera and C. lanceoleosa, marking a significant advancement in understanding camellia-oil tree mitogenomes. Unlike circular mitogenomes reported before, our research confirms multiple-branched configurations in these two species. This sheds light on mitogenome structural complexities and contributes to our understanding of evolutionary processes. Additionally, these results enrich Camellia genetic resources and expand our knowledge of mitogenome variation.
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