Highly active repeat-mediated recombination in the mitogenome of the holoparasitic plant Aeginetia indica
文献类型：期刊论文
| 作者 | Zhong, Yan1; Yu, Runxian2,3; Chen, Jingfang1; Liu, Ying1; Zhou, Renchao1 |
| 刊名 | FRONTIERS IN PLANT SCIENCE
 |
| 出版日期 | 2022 |
| 卷号 | 13 |
| ISSN号 | 1664-462X |
| 关键词 | Aeginetia indica mitochondrial genome repeat-mediated recombination intraspecific variation HGT |
| DOI | 10.3389/fpls.2022.988368 |
| 文献子类 | Article |
| 英文摘要 | Mitogenomes of most flowering plants evolve slowly in sequence, but rapidly in structure. The rearrangements in structure are mainly caused by repeat-mediated recombination. However, patterns of repeat-mediated recombination vary substantially among plants, and to provide a comprehensive picture, characterization of repeat-mediated recombination should extend to more plant species, including parasitic plants with a distinct heterotrophic lifestyle. Here we assembled the mitogenome of the holoparasitic plant Aeginetia indica (Orobanchaceae) using Illumina sequencing reads. The mitogenome was assembled into a circular chromosome of 420,362 bp, 18,734 bp longer than that of another individual of A. indica which was assembled before as a linear molecule. Synteny analysis between the two mitogenomes revealed numerous rearrangements, unique regions of each individual and 0.2% sequence divergence in their syntenic regions. The A. indica mitogenome contains a gene content typical of flowering plants (33 protein-coding, 3 rRNA, and 17 tRNA genes). Repetitive sequences >30 bp in size totals 57,060 bp, representing 13.6% of the mitogenome. We examined recombination mediated by repeats >100 bp in size and found highly active recombination for all the repeats, including a very large repeat of similar to 16 kb. Recombination between these repeats can form much smaller subgenomic circular chromosomes, which may lead to rapid replication of mitochondrial DNA and thus be advantageous for A. indica with a parasitic lifestyle. In addition, unlike some other parasitic plants, A. indica shows no evidence for horizontal gene transfer of protein-coding genes in its mitogenome. |
| 学科主题 | Plant Sciences |
| 出版地 | LAUSANNE |
| WOS关键词 | MITOCHONDRIAL GENOMES ; EVOLUTION ; CHLOROPLAST ; RATES |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| 出版者 | FRONTIERS MEDIA SA |
| WOS记录号 | WOS:000891395300001 |
| 资助机构 | National Natural Science Foundation of China ; [31811530297] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/28978]  |
| 专题 | 系统与进化植物学国家重点实验室 |
| 作者单位 | 1.Sun Yat sen Univ, Sch Life Sci, State Key Lab Biocontrol, Guangzhou, Peoples R China 2.Sun Yat sen Univ, Sch Life Sci, Guangdong Prov Key Lab Plant Resources, Guangzhou, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Coll Life Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhong, Yan,Yu, Runxian,Chen, Jingfang,et al. Highly active repeat-mediated recombination in the mitogenome of the holoparasitic plant Aeginetia indica[J]. FRONTIERS IN PLANT SCIENCE,2022,13. |
| APA | Zhong, Yan,Yu, Runxian,Chen, Jingfang,Liu, Ying,&Zhou, Renchao.(2022).Highly active repeat-mediated recombination in the mitogenome of the holoparasitic plant Aeginetia indica.FRONTIERS IN PLANT SCIENCE,13. |
| MLA | Zhong, Yan,et al."Highly active repeat-mediated recombination in the mitogenome of the holoparasitic plant Aeginetia indica".FRONTIERS IN PLANT SCIENCE 13(2022). |
入库方式： OAI收割
来源：植物研究所
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