气候变化领域集成服务门户(CCPortal): Comparative analysis of the organelle genomes of Aconitum carmichaelii revealed structural and sequence differences and phylogenetic relationships

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DOI	10.1186/s12864-024-10136-1
	Comparative analysis of the organelle genomes of Aconitum carmichaelii revealed structural and sequence differences and phylogenetic relationships
	Zhang, Rongxiang; Xiang, Niyan; Qian, Changjiang; Liu, Shuwen; Zhao, Yuemei; Zhang, Guiyu; Wei, Pei; Li, Jianfeng; Yuan, Tao
发表日期	2024
ISSN	1471-2164
起始页码	25
结束页码	1
卷号	25 期号:1
英文摘要	In this study, we conducted an assembly and analysis of the organelle genomes of Aconitum carmichaelii. Our investigation encompassed the examination of organelle genome structures, gene transfer events, and the environmental selection pressures affecting A. carmichaelii. The results revealed distinct evolutionary patterns in the organelle genomes of A. carmichaelii. Especially, the plastome exhibited a more conserved structure but a higher nucleotide substitution rate (NSR), while the mitogenome displayed a more complex structure with a slower NSR. Through homology analysis, we identified several instances of unidirectional protein-coding genes (PCGs) transferring from the plastome to the mitogenome. However, we did not observe any events which genes moved from the mitogenome to the plastome. Additionally, we observed multiple transposable element (TE) fragments in the organelle genomes, with both organelles showing different preferences for the type of nuclear TE insertion. Divergence time estimation suggested that rapid differentiation occurred in Aconitum species approximately 7.96 million years ago (Mya). This divergence might be associated with the reduction in CO2 levels and the significant uplift of the Qinghai-Tibet Plateau (QTP) during the late Miocene. Selection pressure analysis indicated that the dN/dS values of both organelles were less than 1, suggested that organelle PCGs were subject to purification selection. However, we did not detect any positively selected genes (PSGs) in Subg. Aconitum and Subg. Lycoctonum. This observation further supports the idea that stronger negative selection pressure on organelle genes in Aconitum results in a more conserved amino acid sequence. In conclusion, this study contributes to a deeper understanding of organelle evolution in Aconitum species and provides a foundation for future research on the genetic mechanisms underlying the structure and function of the Aconitum plastome and mitogenome.
英文关键词	Aconitum carmichaelii; Chloroplast genome; Mitochondrial genome; Ranunculaceae family; Phylogenetic analysis
语种	英语
WOS研究方向	Biotechnology & Applied Microbiology ; Genetics & Heredity
WOS类目	Biotechnology & Applied Microbiology ; Genetics & Heredity
WOS记录号	WOS:001181192800002
来源期刊	BMC GENOMICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/301794
作者单位	Guizhou Education University; Tibet University; Guizhou Education University; Wuhan University
推荐引用方式 GB/T 7714	Zhang, Rongxiang,Xiang, Niyan,Qian, Changjiang,et al. Comparative analysis of the organelle genomes of Aconitum carmichaelii revealed structural and sequence differences and phylogenetic relationships[J],2024,25(1).
APA	Zhang, Rongxiang.,Xiang, Niyan.,Qian, Changjiang.,Liu, Shuwen.,Zhao, Yuemei.,...&Yuan, Tao.(2024).Comparative analysis of the organelle genomes of Aconitum carmichaelii revealed structural and sequence differences and phylogenetic relationships.BMC GENOMICS,25(1).
MLA	Zhang, Rongxiang,et al."Comparative analysis of the organelle genomes of Aconitum carmichaelii revealed structural and sequence differences and phylogenetic relationships".BMC GENOMICS 25.1(2024).