ArticleBMC plant biology2024
Cytoplasmic genomes of Jasminum sambac reveal divergent sub-mitogenomic conformations and a large nuclear chloroplast-derived insertion.
Article in BMC plant biology, 2024. 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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6 citing papers in PubMed.
- Assembly and comparative analysis of the complete mitochondrial genome of the endangered plant Fraxinus mandshurica.BMC plant biology · 2026Article
- The complete plastome and phylogenetic analysis ofMitochondrial DNA. Part B, Resources · 2026Article
- The mitochondrial genome of Phoebe Bournei highlighted the structure variation driven evolution in magnoliids.BMC plant biology · 2025Article
- Article
- Characterization of key aroma components of jasmine tea with diverse aroma types: Focus on jasmine tea scented with multipetal jasmine.Food chemistry: X · 2025Article
- Integrated multi-omics analysis unravels the floral scent characteristics and regulation in "Hutou" multi-petal jasmine.Communications biology · 2025Article
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Abstract
backgroundJasminum sambac, a widely recognized ornamental plant prized for its aromatic blossoms, exhibits three flora phenotypes: single-petal ("SP"), double-petal ("DP"), and multi-petal ("MP"). The lack of detailed characterization and comparison of J. sambac mitochondrial genomes (mitogenomes) hinders the exploration of the genetic and structural diversity underlying the varying floral phenotypes in jasmine accessions.
resultsHere, we de novo assembled three mitogenomes of typical phenotypes of J. sambac, "SP", "DP", and "MP-hutou" ("HT"), with PacBio reads and the "HT" chloroplast (cp) genome with Illumina reads, and verified them with read mapping and fluorescence in situ hybridization (FISH). The three mitogenomes present divergent sub-genomic conformations, with two, two, and four autonomous circular chromosomes ranging in size from 35.7 kb to 405.3 kb. Each mitogenome contained 58 unique genes. Ribosome binding sites with conserved AAGAAx/AxAAAG motifs were detected upstream of uncanonical start codons TTG, CTG and GTG. The three mitogenomes were similar in genomic content but divergent in structure. The structural variations were mainly attributed to recombination mediated by a large (~ 5 kb) forward repeat pair and several short repeats. The three jasmine cp. genomes showed a well-conserved structure, apart from a 19.9 kb inversion in "HT". We identified a 14.3 kb "HT"-specific insertion on Chr7 of the "HT" nuclear genome, consisting of two 7 kb chloroplast-derived fragments with two intact ndhH and rps15 genes, further validated by polymerase chain reaction (PCR). The well-resolved phylogeny suggests faster mitogenome evolution in J. sambac compared to other Oleaceae species and outlines the mitogenome evolutionary trajectories within Lamiales. All evidence supports that "DP" and "HT" evolved from "SP", with "HT" being the most recent derivative of "DP".
conclusionThe comprehensive characterization of jasmine organelle genomes has added to our knowledge of the structural diversity and evolutionary trajectories behind varying jasmine traits, paving the way for in-depth exploration of mechanisms and targeted genetic research.
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