Plastome of the mycoheterotrophic eudicot Exacum paucisquama (Gentianaceae) exhibits extensive gene loss and a highly expanded inverted repeat region
文献类型：期刊论文
| 作者 | Li, Zhanghai; Ma, Xiao; Wen, Yi2; Chen, Sisi1; Jiang, Yan2; Jin, Xiaohua4 |
| 刊名 | PEERJ
 |
| 出版日期 | 2020 |
| 卷号 | 8 |
| ISSN号 | 2167-8359 |
| 关键词 | Mycoheterotrophy Exacum paucisquama Gentianaceae Plastid genome Gene loss Inverted repeat region expansion |
| DOI | 10.7717/peerj.9157 |
| 文献子类 | Article |
| 英文摘要 | Mycoheterotrophic plants are highly specialized species able to acquire organic carbon from symbiotic fungi, with relaxed dependence on photosynthesis for carbon fixation. The relaxation of the functional constraint of photosynthesis and thereby the relaxed selective pressure on functional photosynthetic genes usually lead to substantial gene loss and a highly degraded plastid genome in heterotrophs. In this study, we sequenced and analyzed the plastome of the eudicot Exacum paucisquama, providing the first plastid genome of a mycoheterotroph in the family Gentianaceae to date. The E. paucisquama plastome was 44,028 bp in length, which is much smaller than the plastomes of autotrophic eudicots. Although the E. paucisquama plastome had a quadripartite structure, a distinct boundary shift was observed in comparison with the plastomes of other eudicots. We detected extensive gene loss and only 21 putative functional genes (15 protein-coding genes, four rRNA genes and two tRNA genes). Our results provide valuable information for comparative evolutionary analyses of plastomes of heterotrophic species belonging to different phylogenetic groups. |
| 学科主题 | Multidisciplinary Sciences |
| 出版地 | LONDON |
| WOS关键词 | GLUTAMYL-TRANSFER-RNA ; CHLOROPLAST ; GENOME ; IDENTIFICATION ; REDUCTION ; EVOLUTION ; SEQUENCE ; ORCHIDS |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| 出版者 | PEERJ INC |
| WOS记录号 | WOS:000538940800002 |
| 资助机构 | Biodiversity Survey, Observation and Assessment Program of Ministry of Ecology and Environment of China ; Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31870195, 31670194] ; Southeast Asia Biodiversity Research Institute, CAS [Y4ZK111B01] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/21726]  |
| 专题 | 系统与进化植物学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China 3.Chinese Acad Sci CAS SEABRI, Southeast Asia Biodivers Res Inst, Xishuangbanna, Peoples R China 4.Nanchang Univ, Nanchang, Jiangxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Zhanghai,Ma, Xiao,Wen, Yi,et al. Plastome of the mycoheterotrophic eudicot Exacum paucisquama (Gentianaceae) exhibits extensive gene loss and a highly expanded inverted repeat region[J]. PEERJ,2020,8. |
| APA | Li, Zhanghai,Ma, Xiao,Wen, Yi,Chen, Sisi,Jiang, Yan,&Jin, Xiaohua.(2020).Plastome of the mycoheterotrophic eudicot Exacum paucisquama (Gentianaceae) exhibits extensive gene loss and a highly expanded inverted repeat region.PEERJ,8. |
| MLA | Li, Zhanghai,et al."Plastome of the mycoheterotrophic eudicot Exacum paucisquama (Gentianaceae) exhibits extensive gene loss and a highly expanded inverted repeat region".PEERJ 8(2020). |
入库方式： OAI收割
来源：植物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。