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| Genomic basis of the giga-chromosomes and giga-genome of tree peony Paeonia ostii | |
| Yuan, Junhui; Jiang, Sanjie1; Jian, Jianbo1; Liu, Mingyu2; Yue, Zhen1; Xu, Jiabao1; Li, Juan2; Xu, Chunyan1; Lin, Lihong3; Jing, Yi1; Zhang, Xiaoxiao4; Chen, Haixin1; Zhang, Linjuan3; Fu, Tao1; Yu, Shuiyan; Wu, Zhangyan1; Zhang, Ying; Wang, Chongzhi1; Zhang, Xiao2,4; Huang, Liangbo1; Wang, Hongqi1; Hong, Deyuan5; Chen, Xiao-Ya; Hu, Yonghong | |
| 2022 | |
| 发表期刊 | NATURE COMMUNICATIONS
 |
| 卷号 | 13期号:1 |
| 摘要 | Tree peony (Paeonia ostii) is an economically important ornamental plant native to China. It is also notable for its seed oil, which is abundant in unsaturated fatty acids such as alpha-linolenic acid (ALA). Here, we report chromosome-level genome assembly (12.28 Gb) of P. ostii. In contrast to monocots with giant genomes, tree peony does not appear to have undergone lineage-specific whole-genome duplication. Instead, explosive LTR expansion in the intergenic regions within a short period (similar to two million years) may have contributed to the formation of its giga-genome. In addition, expansion of five types of histone encoding genes may have helped maintain the giga-chromosomes. Further, we conduct genome-wide association studies (GWAS) on 448 accessions and show expansion and high expression of several genes in the key nodes of fatty acid biosynthetic pathway, including SAD, FAD2 and FAD3, may function in high level of ALAs synthesis in tree peony seeds. Moreover, by comparing with cultivated tree peony (P. suffruticosa), we show that ectopic expression of class A gene AP1 and reduced expression of class C gene AG may contribute to the formation of petaloid stamens. Genomic resources reported in this study will be valuable for studying chromosome/genome evolution and tree peony breeding. |
| 学科领域 | Multidisciplinary Sciences |
| DOI | 10.1038/s41467-022-35063-1 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | PROVIDES INSIGHTS ; PHYLOGENETIC ANALYSIS ; HIGH-ACCURACY ; DRAFT GENOME ; EVOLUTION ; TOOL ; ALIGNMENT ; RNA ; ANNOTATION ; PROGRAM |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| WOS记录号 | WOS:000889930500025 |
| 出版者 | NATURE PORTFOLIO |
| 文献子类 | Article |
| 出版地 | BERLIN |
| EISSN | 2041-1723 |
| 资助机构 | Science and Technology Commission of Shanghai Municipality [14DZ2260400, 14JC1403902, 21DZ1202000] ; National Natural Science Foundation of China [31470328] ; Special Fund for Scientific Research of Shanghai Landscaping and City Appearance Administrative Bureau [G222415, G192418, G182407, G182406, G172401G162419, G152424, G142435] |
| 作者邮箱 | yuanjunhuigsly@126.com ; hongdy@ibcas.ac.cn ; xychen@cemps.ac.cn ; huyonghong@csnbgsh.cn |
| 作品OA属性 | Green Published, gold |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/28711 |
| 专题 | 系统与进化植物学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Chenshan Plant Sci Res Ctr, Shanghai Key Lab Plant Funct Genom & Resources, Shanghai Chenshan Bot Garden, Shanghai 201602, Peoples R China 2.BGI Shenzhen, BGI Genom, Shenzhen, Guangdong, Peoples R China 3.Qingdao Agr Univ, Coll Land Scape Architecture & Forestry, Qingdao, Shandong, Peoples R China 4.Shanghai Normal Univ, Coll Life Sci, Shanghai, Peoples R China 5.Northwest A&F Univ, Coll Landscape Architecture & Arts, Yangling, Shaanxi, Peoples R China 6.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 7.Chinese Acad Sci, Univ CAS, Shanghai Inst Plant Physiol & Ecol, State Key Lab Plant Mol Genet,CAS Ctr Excellence, Shanghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Junhui,Jiang, Sanjie,Jian, Jianbo,et al. Genomic basis of the giga-chromosomes and giga-genome of tree peony Paeonia ostii[J]. NATURE COMMUNICATIONS,2022,13(1). |
| APA | Yuan, Junhui.,Jiang, Sanjie.,Jian, Jianbo.,Liu, Mingyu.,Yue, Zhen.,...&Hu, Yonghong.(2022).Genomic basis of the giga-chromosomes and giga-genome of tree peony Paeonia ostii.NATURE COMMUNICATIONS,13(1). |
| MLA | Yuan, Junhui,et al."Genomic basis of the giga-chromosomes and giga-genome of tree peony Paeonia ostii".NATURE COMMUNICATIONS 13.1(2022). |
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