An-1 Encodes a Basic Helix-Loop-Helix Protein That Regulates Awn Development, Grain Size, and Grain Number in Rice
文献类型：期刊论文
| 作者 | Luo, Jianghong; Liu, Hui; Zhou, Taoying; Gu, Benguo; Huang, Xuehui; Shangguan, Yingying; Zhu, Jingjie; Li, Yan; Zhao, Yan; Wang, Yongchun |
| 刊名 | PLANT CELL
 |
| 出版日期 | 2013 |
| 卷号 | 25期号:9页码:3360-3376 |
| ISSN号 | 1040-4651 |
| DOI | 10.1105/tpc.113.113589 |
| 文献子类 | Article |
| 英文摘要 | Long awns are important for seed dispersal in wild rice (Oryza rufipogon), but are absent in cultivated rice (Oryza sativa). The genetic mechanism involved in loss-of-awn in cultivated rice remains unknown. We report here the molecular cloning of a major quantitative trait locus, An-1, which regulates long awn formation in O. rufipogon. An-1 encodes a basic helix-loophelix protein, which regulates cell division. The nearly-isogenic line (NIL-An-1) carrying a wild allele An-1 in the genetic background of the awnless indica Guangluai4 produces long awns and longer grains, but significantly fewer grains per panicle compared with Guangluai4. Transgenic studies confirmed that An-1 positively regulates awn elongation, but negatively regulates grain number per panicle. Genetic variations in the An-1 locus were found to be associated with awn loss in cultivated rice. Population genetic analysis of wild and cultivated rice showed a significant reduction in nucleotide diversity of the An-1 locus in rice cultivars, suggesting that the An-1 locus was a major target for artificial selection. Thus, we propose that awn loss was favored and strongly selected by humans, as genetic variations at the An-1 locus that cause awn loss would increase grain numbers and subsequently improve grain yield in cultivated rice. |
| 学科主题 | Biochemistry & Molecular Biology ; Plant Sciences ; Cell Biology |
| 出版地 | CARY |
| 电子版国际标准刊号 | 1532-298X |
| WOS关键词 | TRANSCRIPTION FACTOR ; GENETIC-CONTROL ; PLANT DEVELOPMENT ; ARABIDOPSIS ; CYTOKININ ; GROWTH ; DOMESTICATION ; SPATULA ; DIFFERENTIATION ; ELONGATION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000326287100018 |
| 出版者 | OXFORD UNIV PRESS INC |
| 资助机构 | Ministry of Science and Technology of China(Ministry of Science and Technology, China) ; Ministry of Agriculture of China(Ministry of Agriculture & Rural Affairs) ; National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/28032]  |
| 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.Natl Inst Genet, Mishima, Shizuoka 4118540, Japan 2.Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Plant Physiol & Ecol, Natl Ctr Gene Res, Shanghai 200233, Peoples R China 3.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Jianghong,Liu, Hui,Zhou, Taoying,et al. An-1 Encodes a Basic Helix-Loop-Helix Protein That Regulates Awn Development, Grain Size, and Grain Number in Rice[J]. PLANT CELL,2013,25(9):3360-3376. |
| APA | Luo, Jianghong.,Liu, Hui.,Zhou, Taoying.,Gu, Benguo.,Huang, Xuehui.,...&Han, Bin.(2013).An-1 Encodes a Basic Helix-Loop-Helix Protein That Regulates Awn Development, Grain Size, and Grain Number in Rice.PLANT CELL,25(9),3360-3376. |
| MLA | Luo, Jianghong,et al."An-1 Encodes a Basic Helix-Loop-Helix Protein That Regulates Awn Development, Grain Size, and Grain Number in Rice".PLANT CELL 25.9(2013):3360-3376. |
入库方式： OAI收割
来源：植物研究所
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