Duplication and Whorl-Specific-Down Regulation of the Obligate AP3-PI Heterodimer Genes Explain the Origin of Paeonia lactiflora Plants with Spontaneous Corolla Mutation
文献类型：期刊论文
| 作者 | Gong, Pichang; Ao, Xiang3; Liu, Gaixiu2; Cheng, Fangyun3; He, Chaoying1
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| 刊名 | PLANT AND CELL PHYSIOLOGY
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| 出版日期 | 2017 |
| 卷号 | 58期号:3页码:411-425 |
| 关键词 | Corolla development Expressional variation Functional evolution MADS-box gene Protein-protein interaction Paeonia lactiflora |
| ISSN号 | 0032-0781 |
| DOI | 10.1038/ismej.2016.180 |
| 文献子类 | Article |
| 英文摘要 | Herbaceous peony (Paeonia lactiflora) is a globally important ornamental plant. Spontaneous floral mutations occur frequently during cultivation, and are selected as a way to release new cultivars, but the underlying evolutionary developmental genetics remain largely elusive. Here, we investigated a collection of spontaneous corolla mutational plants (SCMPs) whose other floral organs were virtually unaffected. Unlike the corolla in normal plants (NPs) that withered soon after fertilization, the transformed corolla (petals) in SCMPs was greenish and persistent similar to the calyx (sepals). Epidermal cellular morphology of the SCMP corolla was also similar to that of calyx cells, further suggesting a sepaloid corolla in SCMPs. Ten floral MADS-box genes from these Paeonia plants were comparatively characterized with respect to sequence and expression. Codogenic sequence variation of these MADS-box genes was not linked to corolla changes in SCMPs. However, we found that both APETALA3 (AP3) and PISTILLATA (PI) lineages of B-class MADS-box genes were duplicated, and subsequent selective expression alterations of these genes were closely associated with the origin of SCMPs. AP3-PI obligate heterodimerization, essential for organ identity of corolla and stamens, was robustly detected. However, selective down-regulation of these duplicated genes might result in a reduction of this obligate heterodimer concentration in a corolla-specific manner, leading to the sepaloid corolla in SCMPs, thus representing a new sepaloid corolla model taking advantage of gene duplication. Our work suggests that modifying floral MADS-box genes could facilitate the breeding of novel cultivars with distinct floral morphology in ornamental plants, and also provides new insights into the functional evolution of the MADS-box genes in plants. |
| 学科主题 | Environmental Sciences & Ecology ; Microbiology |
| 出版地 | OXFORD |
| 电子版国际标准刊号 | 1471-9053 |
| WOS关键词 | MADS-BOX GENES ; FLORAL ORGAN IDENTITY ; HOMEOTIC GENE ; FLOWER DEVELOPMENT ; FUNCTIONAL DIVERGENCE ; PROTEIN-INTERACTION ; PETAL IDENTITY ; DNA-BINDING ; ABC MODEL ; B GENES |
| 语种 | 英语 |
| WOS记录号 | WOS:000397281200007 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | National High Technology Research and Development ProgramNational High Technology Research and Development Program of China [2011AA100207] ; CAS/SAFEA International Partner Program for Creative Research Teams of 'Systematic and Evolutionary Botany' |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/22153]  |
| 专题 | 植物研究所_系统与进化植物学研究中心_系统与进化植物学研究中心_学位论文 |
| 作者单位 | 1.Luoyang Natl Peony Garden, Mangshan Town, Luoyang 471011, Peoples R China 2.Landscape Architecture Coll Beijing Forestry Univ, Natl Flower Engn Res Ctr, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 4.Univ Chinese Acad Sci, Yuquan Rd 19, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gong, Pichang,Ao, Xiang,Liu, Gaixiu,et al. Duplication and Whorl-Specific-Down Regulation of the Obligate AP3-PI Heterodimer Genes Explain the Origin of Paeonia lactiflora Plants with Spontaneous Corolla Mutation[J]. PLANT AND CELL PHYSIOLOGY,2017,58(3):411-425. |
| APA | Gong, Pichang,Ao, Xiang,Liu, Gaixiu,Cheng, Fangyun,&He, Chaoying.(2017).Duplication and Whorl-Specific-Down Regulation of the Obligate AP3-PI Heterodimer Genes Explain the Origin of Paeonia lactiflora Plants with Spontaneous Corolla Mutation.PLANT AND CELL PHYSIOLOGY,58(3),411-425. |
| MLA | Gong, Pichang,et al."Duplication and Whorl-Specific-Down Regulation of the Obligate AP3-PI Heterodimer Genes Explain the Origin of Paeonia lactiflora Plants with Spontaneous Corolla Mutation".PLANT AND CELL PHYSIOLOGY 58.3(2017):411-425. |
入库方式： OAI收割
来源：植物研究所
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