Phylogeny and evolution of chloroplast tRNAs in Adoxaceae
文献类型：期刊论文
| 作者 | Zhong,Qiu-Yi; Fu,Xiao-Gang; Zhang,Ting-Ting; Zhou,Tong; Yue,Ming; Liu,Jian-Ni; Li,Zhong-Hu |
| 刊名 | ECOLOGY AND EVOLUTION
 |
| 出版日期 | 2021 |
| 卷号 | 11期号:3页码:1294-1309 |
| ISSN号 | 2045-7758 |
| 关键词 | anticodon chloroplast tRNA intron phylogeny transition transversion NONOPTIMAL CODON USAGE HORIZONTAL TRANSFER GENE DUPLICATION GENOME MITOCHONDRIAL ORIGIN TRANSLATION SEQUENCES ACID DNA |
| DOI | 10.1002/ece3.7133 |
| 英文摘要 | Chloroplasts are semiautonomous organelles found in photosynthetic plants. The major functions of chloroplasts include photosynthesis and carbon fixation, which are mainly regulated by its circular genomes. In the highly conserved chloroplast genome, the chloroplast transfer RNA genes (cp tRNA) play important roles in protein translation within chloroplasts. However, the evolution of cp tRNAs remains unclear. Thus, in the present study, we investigated the evolutionary characteristics of chloroplast tRNAs in five Adoxaceae species using 185 tRNA gene sequences. In total, 37 tRNAs encoding 28 anticodons are found in the chloroplast genome in Adoxaceae species. Some consensus sequences are found within the psi-stem and anticodon loop of the tRNAs. Some putative novel structures were also identified, including a new stem located in the variable region of tRNA(Tyr) in a similar manner to the anticodon stem. Furthermore, phylogenetic and evolutionary analyses indicated that synonymous tRNAs may have evolved from multiple ancestors and frequent tRNA duplications during the evolutionary process may have been primarily caused by positive selection and adaptive evolution. The transition and transversion rates are uneven among different tRNA isotypes. For all tRNAs, the transition rate is greater with a transition/transversion bias of 3.13. Phylogenetic analysis of cp tRNA suggested that the type I introns in different taxa (including eukaryote organisms and cyanobacteria) share the conserved sequences U-U-x2-C and U-x-G-x2-T, thereby indicating the diverse cyanobacterial origins of organelles. This detailed study of cp tRNAs in Adoxaceae may facilitate further investigations of the evolution, phylogeny, structure, and related functions of chloroplast tRNAs. |
| WOS记录号 | WOS:000605019800001 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/73489]  |
| 专题 | 中国科学院昆明植物研究所 |
| 作者单位 | 1.Fu, Xiao-Gang 2.[Zhong, Qiu-Yi 3.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming, Yunnan, Peoples R China 4.Northwest Univ, Early Life Inst, Dept Geol, State Key Lab Continental Dynam, Xian, Peoples R China 5.Northwest Univ, Coll Life Sci, Shaanxi Key Lab Anim Conservat,Minist Educ, Key Lab Resource Biol & Biotechnol Western China, Xian 710069, Peoples R China 6.Yue, Ming 7.Zhou, Tong 8.Zhang, Ting-Ting |
| 推荐引用方式 GB/T 7714 | Zhong,Qiu-Yi,Fu,Xiao-Gang,Zhang,Ting-Ting,et al. Phylogeny and evolution of chloroplast tRNAs in Adoxaceae[J]. ECOLOGY AND EVOLUTION,2021,11(3):1294-1309. |
| APA | Zhong,Qiu-Yi.,Fu,Xiao-Gang.,Zhang,Ting-Ting.,Zhou,Tong.,Yue,Ming.,...&Li,Zhong-Hu.(2021).Phylogeny and evolution of chloroplast tRNAs in Adoxaceae.ECOLOGY AND EVOLUTION,11(3),1294-1309. |
| MLA | Zhong,Qiu-Yi,et al."Phylogeny and evolution of chloroplast tRNAs in Adoxaceae".ECOLOGY AND EVOLUTION 11.3(2021):1294-1309. |
入库方式： OAI收割
来源：昆明植物研究所
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