Dosage imbalance of B- and C-class genes causes petaloid-stamen relating to F-1 hybrid variation
文献类型：期刊论文
| 作者 | Liu, Jing; Li, Chao-Qun; Dong, Yang ; Yang, Xia; Wang, Yin-Zheng
|
| 刊名 | BMC PLANT BIOLOGY
 |
| 出版日期 | 2018 |
| 卷号 | 18 |
| 关键词 | ASE analyses B-class genes Dosage imbalance Floral symmetry Organ identity Parallel pathways Petaloid-stamen Petrocosmea |
| ISSN号 | 1471-2229 |
| DOI | 10.1186/s12870-018-1562-4 |
| 文献子类 | Article |
| 英文摘要 | BackgroundGreat advances have been achieved in our understanding of flower development and evolution since the establishment of the ABC model. However, it remains a challenge to define the exact context of organ identity in the component interactions of the ABC model.ResultsThrough hybridization, we detected a homeotic mutant in Petrocosmea (Gesneriaceae) uniquely displayed by the petaloid-stamen' in the third whorl with petal identity. Comparative Real-time PCR analyses demonstrate that both two B-class genes DEF2 and GLO are excessively expressed while the transcripts of the C-class gene PLE are reduced in the third floral whorl in the mutant compared to that in the wild-type F-1 hybrids. Further allele-specific expression (ASE) analyses indicate that an allele-specific change in PgPLE might be responsible for up-regulation of both B-class genes and down-regulation of the C-class gene in the petaloid-stamen mutants.ConclusionsOur findings suggest that the petaloid-stamen is consequent upon an evident dosage imbalance between B- and C-class products that is probably triggered by a cis-regulatory change. In addition, the genetic pathway for the floral organ identity might be in parallel with that for the floral symmetry. The extreme variation in hybrids further suggests that interspecific hybridization may represent a major factor for evolutionary innovation and diversification in plants. |
| 学科主题 | Plant Sciences |
| 出版地 | LONDON |
| WOS关键词 | FLORAL HOMEOTIC GENES ; MADS-BOX ; ORGAN IDENTITY ; TRANSGRESSIVE SEGREGATION ; ARABIDOPSIS-THALIANA ; ANTIRRHINUM-MAJUS ; MERISTEM IDENTITY ; DNA-BINDING ; ABC MODEL ; FLOWER |
| 语种 | 英语 |
| WOS记录号 | WOS:000452750200001 |
| 出版者 | BMC |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31170198, 31530003] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/20329]  |
| 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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Li, Chao-Qun 3.Dong, Yang 4.Yang, Xia 5.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, 20 Nanxincun, Beijing 100093, Peoples R China 6.[Liu, Jing |
| 推荐引用方式 GB/T 7714 | Liu, Jing,Li, Chao-Qun,Dong, Yang,et al. Dosage imbalance of B- and C-class genes causes petaloid-stamen relating to F-1 hybrid variation[J]. BMC PLANT BIOLOGY,2018,18. |
| APA | Liu, Jing,Li, Chao-Qun,Dong, Yang,Yang, Xia,&Wang, Yin-Zheng.(2018).Dosage imbalance of B- and C-class genes causes petaloid-stamen relating to F-1 hybrid variation.BMC PLANT BIOLOGY,18. |
| MLA | Liu, Jing,et al."Dosage imbalance of B- and C-class genes causes petaloid-stamen relating to F-1 hybrid variation".BMC PLANT BIOLOGY 18(2018). |
入库方式： OAI收割
来源：植物研究所
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