ArticleBMC plant biology2022
The extremely reduced, diverged and reconfigured plastomes of the largest mycoheterotrophic orchid lineage.
Article in BMC plant biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed.
- Orchid genome evolution and trait innovation.Journal of integrative plant biology · 2026Review
- Comparative plastome analyses reveal life-form-associated selection signatures in Orchidaceae.BMC plant biology · 2026Article
- Mycoheterotrophy and plastid genome evolution in the early-diverging epidendroid orchid tribe Nervilieae: independent transitions inAoB PLANTS · 2026Article
- Comparative organellar genomics ofFrontiers in plant science · 2026Article
- Comprehensive species sampling reveals pervasive pseudogenization and recurrent complete loss of plastid ndh genes in the genus Cymbidium (Orchidaceae).BMC plant biology · 2025Article
- The Complete Chloroplast Genome ofGenes · 2025Article
- Plastome and transcriptome analysis reveals a degenerated photosynthesis-related pathway in the mycoheterotrophic vanilloid orchid Cyrtosia lindleyana.BMC plant biology · 2025Article
- Orchid phylogenetics and evolution: history, current status and prospects.Annals of botany · 2025Review
- De Novo Creation of Two Novel Spliceosomal Introns of RECG1 by Intronization of Formerly Exonic Sequences in Orchidaceae.Journal of molecular evolution · 2025Article
- Unequally Abundant Chromosomes and Unusual Collections of Transferred Sequences Characterize Mitochondrial Genomes of Gastrodia (Orchidaceae), One of the Largest Mycoheterotrophic Plant Genera.Molecular biology and evolution · 2025Article
- Organellar phylogenomics at the epidendroid orchid base, with a focus on the mycoheterotrophic Wullschlaegelia.Annals of botany · 2024Article
- Comprehensive characterization and phylogenetic analysis of the complete plastomes of two ant-orchids, Caularthron bicornutum and Myrmecophila thomsoniana.BMC plant biology · 2024Article
- Cytonuclear evolution in fully heterotrophic plants: lifestyles and gene function determine scenarios.BMC plant biology · 2024Article
- The Complete Chloroplast Genomes ofInternational journal of molecular sciences · 2024Article
- PhytoKeys · 2024Article
- Phylogenetic position and plastid genome structure ofFrontiers in plant science · 2024Article
- Molecular phylogenetic analyses reveal multiple long-distance dispersal events and extensive cryptic speciation inFrontiers in plant science · 2024Article
- Plastid phylogenomics reveals evolutionary relationships in the mycoheterotrophic orchid genusFrontiers in plant science · 2024Article
- Comparative and phylogenetic analysis of Chiloschista (Orchidaceae) species and DNA barcoding investigation based on plastid genomes.BMC genomics · 2023Article
- Characteristics and Comparative Analysis of Seven Complete Plastomes ofInternational journal of molecular sciences · 2023Article
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8 authors.
Funding
Abstract
backgroundPlastomes of heterotrophic plants have been greatly altered in structure and gene content, owing to the relaxation of selection on photosynthesis-related genes. The orchid tribe Gastrodieae is the largest and probably the oldest mycoheterotrophic clade of the extant family Orchidaceae. To characterize plastome evolution across members of this key important mycoheterotrophic lineage, we sequenced and analyzed the plastomes of eleven Gastrodieae members, including representative species of two genera, as well as members of the sister group Nervilieae.
resultsThe plastomes of Gastrodieae members contain 20 protein-coding, four rRNA and five tRNA genes. Evolutionary analysis indicated that all rrn genes were transferred laterally and together, forming an rrn block in the plastomes of Gastrodieae. The plastome GC content of Gastrodia species ranged from 23.10% (G. flexistyla) to 25.79% (G. javanica). The plastome of Didymoplexis pallens contains two copies each of ycf1 and ycf2. The synonymous and nonsynonymous substitution rates were very high in the plastomes of Gastrodieae among mycoheterotrophic species in Orchidaceae and varied between genes.
conclusionsThe plastomes of Gastrodieae are greatly reduced and characterized by low GC content, rrn block formation, lineage-specific reconfiguration and gene content, which might be positively selected. Overall, the plastomes of Gastrodieae not only serve as an excellent model for illustrating the evolution of plastomes but also provide new insights into plastome evolution in parasitic plants.
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