Analysis of the complete mitogenomes of three high economic value tea plants (Tea-oil Camellia) provide insights into evolution and phylogeny relationship DOI Creative Commons
Heng Liang, Huasha Qi, Chunmei Wang

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: April 24, 2025

Introduction Tea-oil Camellia species play a crucial economic and ecological role worldwide, yet their mitochondrial genomes remain largely unexplored. Methods In this study, we assembled analyzed the complete of oleifera C. meiocarpa , revealing multi-branch structures that deviate from typical circular genome observed in most plants. The mitogenomes span 953,690 bp ( ) 923,117 ), containing 74 76 annotated genes, respectively. Results Comparative genomic analyses indicated share closer genetic relationship, whereas drupifera is more distantly related. Codon usage analysis revealed natural selection plays dominant shaping codon bias these genomes. Additionally, extensive gene transfer events were detected among three species, highlighting dynamic nature evolution Camellia. Phylogenetic reconstruction based on genes exhibited incongruence with chloroplast phylogenies, suggesting potential discordance due to hybridization events, incomplete lineage sorting (ILS), or horizontal (HGT). Furthermore, identified species-specific markers, which provide valuable molecular tools for distinguishing species. Discussion Our findings enhance understanding diversity Camellia, offering essential resources phylogenetics, identification, evolutionary research woody

Language: Английский

Analysis of the complete mitogenomes of three high economic value tea plants (Tea-oil Camellia) provide insights into evolution and phylogeny relationship DOI Creative Commons
Heng Liang, Huasha Qi, Chunmei Wang

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: April 24, 2025

Introduction Tea-oil Camellia species play a crucial economic and ecological role worldwide, yet their mitochondrial genomes remain largely unexplored. Methods In this study, we assembled analyzed the complete of oleifera C. meiocarpa , revealing multi-branch structures that deviate from typical circular genome observed in most plants. The mitogenomes span 953,690 bp ( ) 923,117 ), containing 74 76 annotated genes, respectively. Results Comparative genomic analyses indicated share closer genetic relationship, whereas drupifera is more distantly related. Codon usage analysis revealed natural selection plays dominant shaping codon bias these genomes. Additionally, extensive gene transfer events were detected among three species, highlighting dynamic nature evolution Camellia. Phylogenetic reconstruction based on genes exhibited incongruence with chloroplast phylogenies, suggesting potential discordance due to hybridization events, incomplete lineage sorting (ILS), or horizontal (HGT). Furthermore, identified species-specific markers, which provide valuable molecular tools for distinguishing species. Discussion Our findings enhance understanding diversity Camellia, offering essential resources phylogenetics, identification, evolutionary research woody

Language: Английский

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