De Novo Assembly of First Mitochondrial Genome in <i>Melicope pteleifolia</i> (Rutaceae): Resolving Inter-Organellar Gene Transfer Events Through Integrated Chloroplast Analysis

<i>Melicope pteleifolia</i> (Rutaceae) is a shrub or tree with high medicinal value. Although the physical features of <i>M. pteleifolia</i> are evident, the mitochondrial (mt) genome has yet to be investigated, and its evolutionary relationship within Rutaceae is unclear. Th...

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Main Authors: Lijun Guo, Wenwen Shi, Yatao Luo, Kai Gao, Jingli Huang, Hong Wei, Pan Liang, Longfei He, Dong Xiao, Jie Zhan, Guangyu Zeng, Aiqin Wang
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Horticulturae
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Online Access:https://www.mdpi.com/2311-7524/11/6/628
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author Lijun Guo
Wenwen Shi
Yatao Luo
Kai Gao
Jingli Huang
Hong Wei
Pan Liang
Longfei He
Dong Xiao
Jie Zhan
Guangyu Zeng
Aiqin Wang
author_facet Lijun Guo
Wenwen Shi
Yatao Luo
Kai Gao
Jingli Huang
Hong Wei
Pan Liang
Longfei He
Dong Xiao
Jie Zhan
Guangyu Zeng
Aiqin Wang
author_sort Lijun Guo
collection DOAJ
description <i>Melicope pteleifolia</i> (Rutaceae) is a shrub or tree with high medicinal value. Although the physical features of <i>M. pteleifolia</i> are evident, the mitochondrial (mt) genome has yet to be investigated, and its evolutionary relationship within Rutaceae is unclear. The organelle genomes of <i>M. pteleifolia</i> were constructed using Nanopore and Illumina sequencing data. The circular mt genome is 780,107 base pairs (bp) long, with a GC content of 44.85%. It has 66 genes, consisting of 33 protein-coding genes (PCGs), 30 tRNA genes, and 3 rRNA genes. The length of the chloroplast (cp) genome was 158,987 bp, containing 88 PCGs, 37 tRNAs, and 8 rRNAs. The mtDNA and cpDNA contained 507 and 353 repetitive sequences, respectively. RNA editing sites were abundant in <i>M. pteleifolia</i> organelle genomes, including 323 sites in mtDNA and 260 sites in cpDNA. Phylogenetic research using the cp and mt genomes of <i>M. pteleifolia</i> and nine additional species of the Rutaceae family precisely delineates its evolutionary and taxonomic position. Ka/Ks and nucleotide diversity indicated that the majority of the PCGs in the mitochondrial genome had experienced negative selection. These findings provided comprehensive information on the <i>M. pteleifolia</i> mitogenome for studying phylogenetic relationships in Rutaceae, with chloroplast-derived sequences providing critical evidence for inter-organellar genome evolution.
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issn 2311-7524
language English
publishDate 2025-06-01
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series Horticulturae
spelling doaj-art-c1ded0eb4339460db011d3623fcc6d3e2025-08-20T02:21:06ZengMDPI AGHorticulturae2311-75242025-06-0111662810.3390/horticulturae11060628De Novo Assembly of First Mitochondrial Genome in <i>Melicope pteleifolia</i> (Rutaceae): Resolving Inter-Organellar Gene Transfer Events Through Integrated Chloroplast AnalysisLijun Guo0Wenwen Shi1Yatao Luo2Kai Gao3Jingli Huang4Hong Wei5Pan Liang6Longfei He7Dong Xiao8Jie Zhan9Guangyu Zeng10Aiqin Wang11National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, ChinaNational Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, ChinaNational Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, ChinaNational Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, ChinaAgricultural and Animal Husbandry Industry Development Research Institute, Guangxi University, Nanning 530004, ChinaGuangxi State-Owned Sanmenjiang Forest Farm, Liuzhou 545001, ChinaGuangxi State-Owned Sanmenjiang Forest Farm, Liuzhou 545001, ChinaNational Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, ChinaNational Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, ChinaNational Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, ChinaGuangxi Forestry Science Research Institute, Nanning 530004, ChinaNational Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, China<i>Melicope pteleifolia</i> (Rutaceae) is a shrub or tree with high medicinal value. Although the physical features of <i>M. pteleifolia</i> are evident, the mitochondrial (mt) genome has yet to be investigated, and its evolutionary relationship within Rutaceae is unclear. The organelle genomes of <i>M. pteleifolia</i> were constructed using Nanopore and Illumina sequencing data. The circular mt genome is 780,107 base pairs (bp) long, with a GC content of 44.85%. It has 66 genes, consisting of 33 protein-coding genes (PCGs), 30 tRNA genes, and 3 rRNA genes. The length of the chloroplast (cp) genome was 158,987 bp, containing 88 PCGs, 37 tRNAs, and 8 rRNAs. The mtDNA and cpDNA contained 507 and 353 repetitive sequences, respectively. RNA editing sites were abundant in <i>M. pteleifolia</i> organelle genomes, including 323 sites in mtDNA and 260 sites in cpDNA. Phylogenetic research using the cp and mt genomes of <i>M. pteleifolia</i> and nine additional species of the Rutaceae family precisely delineates its evolutionary and taxonomic position. Ka/Ks and nucleotide diversity indicated that the majority of the PCGs in the mitochondrial genome had experienced negative selection. These findings provided comprehensive information on the <i>M. pteleifolia</i> mitogenome for studying phylogenetic relationships in Rutaceae, with chloroplast-derived sequences providing critical evidence for inter-organellar genome evolution.https://www.mdpi.com/2311-7524/11/6/628<i>Melicope pteleifolia</i>mitochondrial genomechloroplast genomeRNA editingphylogeny
spellingShingle Lijun Guo
Wenwen Shi
Yatao Luo
Kai Gao
Jingli Huang
Hong Wei
Pan Liang
Longfei He
Dong Xiao
Jie Zhan
Guangyu Zeng
Aiqin Wang
De Novo Assembly of First Mitochondrial Genome in <i>Melicope pteleifolia</i> (Rutaceae): Resolving Inter-Organellar Gene Transfer Events Through Integrated Chloroplast Analysis
Horticulturae
<i>Melicope pteleifolia</i>
mitochondrial genome
chloroplast genome
RNA editing
phylogeny
title De Novo Assembly of First Mitochondrial Genome in <i>Melicope pteleifolia</i> (Rutaceae): Resolving Inter-Organellar Gene Transfer Events Through Integrated Chloroplast Analysis
title_full De Novo Assembly of First Mitochondrial Genome in <i>Melicope pteleifolia</i> (Rutaceae): Resolving Inter-Organellar Gene Transfer Events Through Integrated Chloroplast Analysis
title_fullStr De Novo Assembly of First Mitochondrial Genome in <i>Melicope pteleifolia</i> (Rutaceae): Resolving Inter-Organellar Gene Transfer Events Through Integrated Chloroplast Analysis
title_full_unstemmed De Novo Assembly of First Mitochondrial Genome in <i>Melicope pteleifolia</i> (Rutaceae): Resolving Inter-Organellar Gene Transfer Events Through Integrated Chloroplast Analysis
title_short De Novo Assembly of First Mitochondrial Genome in <i>Melicope pteleifolia</i> (Rutaceae): Resolving Inter-Organellar Gene Transfer Events Through Integrated Chloroplast Analysis
title_sort de novo assembly of first mitochondrial genome in i melicope pteleifolia i rutaceae resolving inter organellar gene transfer events through integrated chloroplast analysis
topic <i>Melicope pteleifolia</i>
mitochondrial genome
chloroplast genome
RNA editing
phylogeny
url https://www.mdpi.com/2311-7524/11/6/628
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