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Distinctive plastome evolution in carnivorous angiosperms
Fu,Chao-Nan; Wicke,Susann; Zhu,An-Dan; Li,De-Zhu; Gao,Lian-Ming
2023
Source PublicationBMC PLANT BIOLOGY
Volume23Issue:1Pages:660
AbstractBackgroundIndependent origins of carnivory in multiple angiosperm families are fabulous examples of convergent evolution using a diverse array of life forms and habitats. Previous studies have indicated that carnivorous plants have distinct evolutionary trajectories of plastid genome (plastome) compared to their non-carnivorous relatives, yet the extent and general characteristics remain elusive.ResultsWe compared plastomes from 9 out of 13 carnivorous families and their non-carnivorous relatives to assess carnivory-associated evolutionary patterns. We identified inversions in all sampled Droseraceae species and four species of Utricularia, Pinguicula, Darlingtonia and Triphyophyllum. A few carnivores showed distinct shifts in inverted repeat boundaries and the overall repeat contents. Many ndh genes, along with some other genes, were independently lost in several carnivorous lineages. We detected significant substitution rate variations in most sampled carnivorous lineages. A significant overall substitution rate acceleration characterizes the two largest carnivorous lineages of Droseraceae and Lentibulariaceae. We also observe moderate substitution rates acceleration in many genes of Cephalotus follicularis, Roridula gorgonias, and Drosophyllum lusitanicum. However, only a few genes exhibit significant relaxed selection.ConclusionOur results indicate that the carnivory of plants have different effects on plastome evolution across carnivorous lineages. The complex mechanism under carnivorous habitats may have resulted in distinctive plastome evolution with conserved plastome in the Brocchinia hechtioides to strongly reconfigured plastomes structures in Droseraceae. Organic carbon obtained from prey and the efficiency of utilizing prey-derived nutrients might constitute possible explanation.
KeywordCarnivory Plastome Substitution rates Prey-derived nutrient utilization CHLOROPLAST GENOME PHYLOGENETIC ANALYSIS DIGESTIVE MUTUALISM PARASITIC PLANTS SEQUENCE GENES COEVOLUTION ALIGNMENT INSIGHTS ORGANIZATION
DOI10.1186/s12870-023-04682-1
WOS IDWOS:001128820200003
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Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/74952
Collection中国科学院昆明植物研究所
Recommended Citation
GB/T 7714
Fu,Chao-Nan,Wicke,Susann,Zhu,An-Dan,et al. Distinctive plastome evolution in carnivorous angiosperms[J]. BMC PLANT BIOLOGY,2023,23(1):660.
APA Fu,Chao-Nan,Wicke,Susann,Zhu,An-Dan,Li,De-Zhu,&Gao,Lian-Ming.(2023).Distinctive plastome evolution in carnivorous angiosperms.BMC PLANT BIOLOGY,23(1),660.
MLA Fu,Chao-Nan,et al."Distinctive plastome evolution in carnivorous angiosperms".BMC PLANT BIOLOGY 23.1(2023):660.
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