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| Non-dormant Axillary Bud 1 regulates axillary bud outgrowth in sorghum | |
Chen, Jun1,2; Zhang, Limin3; Zhu, Mengjiao1,2; Han, Lijie1,2; Lv, Ya1,2; Liu, Yishan1,2; Li, Pan1,2; Jing, Haichun3,4,5 ; Cai, Hongwei1,2,6
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| 2018 | |
| 发表期刊 | JOURNAL OF INTEGRATIVE PLANT BIOLOGY
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| ISSN | 1672-9072 |
| 卷号 | 60期号:10页码:938-955 |
| 摘要 | Tillering contributes to grain yield and plant architecture and therefore is an agronomically important trait in sorghum (Sorghum bicolor). Here, we identified and functionally characterized a mutant of the Nondormant Axillary Bud 1 (NAB1) gene from an ethyl methanesulfonate-mutagenized sorghum population. The nabi mutants have increased tillering and reduced plant height. Map-based cloning revealed that NAB1 encodes a carotenoid-cleavage dioxygenase 7 (CCD7) orthologous to rice (Oryza sativa) HIGH-TILLERING DWARF1/DWARF17 and Arabidopsis thaliana MORE AXILLARY BRANCHING 3. NAB1 is primarily expressed in axillary nodes and tiller bases and NAB1 localizes to chloroplasts. The nab1 mutation causes outgrowth of basal axillary buds; removing these non-dormant basal axillary buds restored the wild-type phenotype. The tillering of nab1 plants was completely suppressed by exogenous application of the synthetic strigolactone analog GR24. Moreover, the nab1 plants had no detectable strigolactones and displayed stronger polar auxin transport than wild-type plants. Finally, RNA-seq showed that the expression of genes involved in multiple processes, including auxin-related genes, was significantly altered in nab1. These results suggest that NAB1 functions in strigolactone biosynthesis and the regulation of shoot branching via an interaction with auxin transport. |
| 学科领域 | Biochemistry & Molecular Biology ; Plant Sciences |
| DOI | 10.1111/jipb.12665 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | POLAR-AUXIN-TRANSPORT ; GERMINATION STIMULANTS ; APICAL DOMINANCE ; MUTATIONAL ANALYSIS ; ARABIDOPSIS ; RICE ; MAX1 ; PEA ; ACTS ; STRIGOLACTONES |
| WOS记录号 | WOS:000446451000003 |
| 出版者 | WILEY |
| 文献子类 | Article |
| 出版地 | HOBOKEN |
| EISSN | 1744-7909 |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31461143023, 31471570] ; Ministry of Science and Technology of the People's Republic of ChinaMinistry of Science and Technology, China [2015BAD15B03] |
| 作者邮箱 | hcjing@ibcas.ac.cn ; caihw@cau.edu.cn |
| 作品OA属性 | hybrid |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/20412 |
| 专题 | 中科院北方资源植物重点实验室 |
| 作者单位 | 1.China Agr Univ, Dept Plant Genet Breeding & Seed Sci, Beijing 100193, Peoples R China 2.Beijing Key Lab Crop Genet Improvement, Beijing 100193, Peoples R China 3.MOE, Lab Crop Heterosis & Utilizat, Beijing 100193, Peoples R China 4.Chinese Acad Sci, Key Lab Plant Resources, Inst Bot, Beijing 100093, Peoples R China 5.Chinese Acad Sci, Inner Mongolia Res Ctr Practaculture, Beijing 100093, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Japan Grassland Agr & Forage Seed Assoc, Forage Crop Res Inst, 388-5 Higashiakada, Nasushiobara, Tochigi 3292742, Japan |
| 推荐引用方式 GB/T 7714 | Chen, Jun,Zhang, Limin,Zhu, Mengjiao,et al. Non-dormant Axillary Bud 1 regulates axillary bud outgrowth in sorghum[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2018,60(10):938-955. |
| APA | Chen, Jun.,Zhang, Limin.,Zhu, Mengjiao.,Han, Lijie.,Lv, Ya.,...&Cai, Hongwei.(2018).Non-dormant Axillary Bud 1 regulates axillary bud outgrowth in sorghum.JOURNAL OF INTEGRATIVE PLANT BIOLOGY,60(10),938-955. |
| MLA | Chen, Jun,et al."Non-dormant Axillary Bud 1 regulates axillary bud outgrowth in sorghum".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 60.10(2018):938-955. |
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| Integrative Plant Bi（3364KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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