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Habitat-related plastome evolution in the mycoheterotrophic Neottia listeroides complex (Orchidaceae, Neottieae)
Shao,Bing-Yi; Wang,Mo-Zhu; Chen,Si-Si; Ya,Ji-Dong; Jin,Xiao-Hua
2023
Source PublicationBMC PLANT BIOLOGY
Volume23Issue:1Pages:282
AbstractBackgroundMycoheterotrophs, acquiring organic carbon and other nutrients from mycorrhizal fungi, have evolved repeatedly with substantial plastid genome (plastome) variations. To date, the fine-scale evolution of mycoheterotrophic plastomes at the intraspecific level is not well-characterized. A few studies have revealed unexpected plastome divergence among species complex members, possibly driven by various biotic/abiotic factors. To illustrate evolutionary mechanisms underlying such divergence, we analyzed plastome features and molecular evolution of 15 plastomes of Neottia listeroides complex from different forest habitats.ResultsThese 15 samples of Neottia listeroides complex split into three clades according to their habitats approximately 6 million years ago: Pine Clade, including ten samples from pine-broadleaf mixed forests, Fir Clade, including four samples from alpine fir forests and Fir-willow Clade with one sample. Compared with those of Pine Clade members, plastomes of Fir Clade members show smaller size and higher substitution rates. Plastome size, substitution rates, loss and retention of plastid-encoded genes are clade-specific. We propose to recognized six species in N. listeroides complex and slightly modify the path of plastome degradation.ConclusionsOur results provide insight into the evolutionary dynamics and discrepancy of closely related mycoheterotrophic orchid lineages at a high phylogenetic resolution.
KeywordMycoheterotrophy Neottia listeroides complex Chloroplast genomes Micro-evolution MULTIPLE SEQUENCE ALIGNMENT SYMBIOTIC GERMINATION PHYLOGENETIC ANALYSIS SPECIES ORCHIDACEAE EPIDENDROIDEAE GENOME GASTRODIEAE REDUCTION PLANTS PHOTOSYNTHESIS
Subject AreaPlant Sciences
DOI10.1186/s12870-023-04302-y
WOS IDWOS:000994618700001
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Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/74943
Collection中国科学院昆明植物研究所
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GB/T 7714
Shao,Bing-Yi,Wang,Mo-Zhu,Chen,Si-Si,et al. Habitat-related plastome evolution in the mycoheterotrophic Neottia listeroides complex (Orchidaceae, Neottieae)[J]. BMC PLANT BIOLOGY,2023,23(1):282.
APA Shao,Bing-Yi,Wang,Mo-Zhu,Chen,Si-Si,Ya,Ji-Dong,&Jin,Xiao-Hua.(2023).Habitat-related plastome evolution in the mycoheterotrophic Neottia listeroides complex (Orchidaceae, Neottieae).BMC PLANT BIOLOGY,23(1),282.
MLA Shao,Bing-Yi,et al."Habitat-related plastome evolution in the mycoheterotrophic Neottia listeroides complex (Orchidaceae, Neottieae)".BMC PLANT BIOLOGY 23.1(2023):282.
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