ArticleGenome biology and evolution2021
Plastome Structural Evolution and Homoplastic Inversions in Neo-Astragalus (Fabaceae).
Article in Genome biology and evolution, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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20 citing papers in PubMed.
- Plastid Phylogenomics of Elatostemateae (Urticaceae): Insights Into Structural Variation and Phylogenetic Relationships.Ecology and evolution · 2026Article
- Ongoing structural changes highlight the dynamic nature of chloroplast genomes.Nucleic acids research · 2026Article
- Chloroplast genome sequencing in winged bean (Psophocarpus tetragonolobus L.) and comparative analysis with other legumes.BMC plant biology · 2026Article
- Complex plastome structural variation caused by intermolecular and intramolecular recombination accounts for leaf variegation inPlant diversity · 2026Article
- Beyond conservation: the landscape of chloroplast genome rearrangements in angiosperms.The New phytologist · 2025Review
- Insights into Biological and Ecological Features of Four Rare and Endemic Plants from the Northern Tian Shan (Kazakhstan).Plants (Basel, Switzerland) · 2025Article
- Substantial structural variation and repetitive DNA content contribute to intraspecific plastid genome evolution.BMC genomics · 2025Article
- Polyphyly ofFrontiers in plant science · 2024Article
- Insight into chloroplast genome structural variation of the Mongolian endemic species Adonis mongolica (Ranunculaceae) in the Adonideae tribe.Scientific reports · 2023Article
- More than a spiny morphology: plastome variation in the prickly pear cacti (Opuntieae).Annals of botany · 2023Article
- Article
- Characterization and comparative analysis of the complete plastid genomes of four Astragalus species.PloS one · 2023Article
- A phylogenomic study of Iridaceae Juss. based on complete plastid genome sequences.Frontiers in plant science · 2023Article
- Plastid phylogenomics uncovers multiple species in Medicago truncatula (Fabaceae) germplasm accessions.Scientific reports · 2022Article
- Phylogenetic analysis based on single-copy orthologous proteins in highly variable chloroplast genomes of Corydalis.Scientific reports · 2022Article
- Plastid Phylogenomic Analysis of Tordylieae Tribe (Apiaceae, Apioideae).Plants (Basel, Switzerland) · 2022Article
- The complete chloroplast genome of Onobrychis gaubae (Fabaceae-Papilionoideae): comparative analysis with related IR-lacking clade species.BMC plant biology · 2022Article
- Does IR-loss promote plastome structural variation and sequence evolution?Frontiers in plant science · 2022Article
- Comparative analysis of 84 chloroplast genomes ofFrontiers in plant science · 2022Article
- Highly Resolved Papilionoid Legume Phylogeny Based on Plastid Phylogenomics.Frontiers in plant science · 2022Article
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5 authors.
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Abstract
The plastid genomes of photosynthetic green plants have largely maintained conserved gene content and order as well as structure over hundreds of millions of years of evolution. Several plant lineages, however, have departed from this conservation and contain many plastome structural rearrangements, which have been associated with an abundance of repeated sequences both overall and near rearrangement endpoints. We sequenced the plastomes of 25 taxa of Astragalus L. (Fabaceae), a large genus in the inverted repeat-lacking clade of legumes, to gain a greater understanding of the connection between repeats and plastome inversions. We found plastome repeat structure has a strong phylogenetic signal among these closely related taxa mostly in the New World clade of Astragalus called Neo-Astragalus. Taxa without inversions also do not differ substantially in their overall repeat structure from four taxa each with one large-scale inversion. For two taxa with inversion endpoints between the same pairs of genes, differences in their exact endpoints indicate the inversions occurred independently. Our proposed mechanism for inversion formation suggests the short inverted repeats now found near the endpoints of the four inversions may be there as a result of these inversions rather than their cause. The longer inverted repeats now near endpoints may have allowed the inversions first mediated by shorter microhomologous sequences to propagate, something that should be considered in explaining how any plastome rearrangement becomes fixed regardless of the mechanism of initial formation.
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