An-2 Encodes a Cytokinin Synthesis Enzyme that Regulates Awn Length and Grain Production in Rice
文献类型：期刊论文
| 作者 | Gu, Benguo; Zhou, Taoying; Luo, Jianghong; Liu, Hui; Wang, Yongchun; Shangguan, Yingying; Zhu, Jingjie; Li, Yan; Sang, Tao1 ; Wang, Zixuan
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| 刊名 | MOLECULAR PLANT
 |
| 出版日期 | 2015 |
| 卷号 | 8期号:11页码:1635-1650 |
| 关键词 | Oryza sativa awn domestication cytokinin synthesis enzyme grain yield |
| ISSN号 | 1674-2052 |
| DOI | 10.1016/j.molp.2015.08.001 |
| 文献子类 | Article |
| 英文摘要 | A wide range of morphological and physiological traits have changed between cultivated rice Oryza sativa and wild rice Oryza rufipogon under domestication. Here, we report cloning of the An-2 gene, encoding the Lonely Guy Like protein 6 (OsLOGL6), which catalyzes the final step of cytokinin synthesis in O. rufipogon. The near-isogenic line harboring a wild allele of An-2 in the genetic background of the awnless indica Guangluai 4 shows that An-2 promotes awn elongation by enhancing cell division, but decreases grain production by reducing grains per panicle and tillers per plant. We reveal that a genetic variation in the An-2 locus has a large impact on reducing awn length and increasing tiller and grain numbers in domesticated rice. Analysis of gene expression patterns suggests that An-1 regulates the formation of awn primordial, and An-2 promotes awn elongation. Nucleotide diversity of the An-2 locus in cultivated rice was found to be significantly reduced compared with that of wild rice, suggesting that the An-2 locus was subjected to artificial selection. We therefore propose that the selection of genetic variation in An-2 was due to reduced awn length and increased grain yield in cultivated rice. |
| 学科主题 | Biochemistry & Molecular Biology ; Plant Sciences |
| 出版地 | CAMBRIDGE |
| 电子版国际标准刊号 | 1752-9867 |
| WOS关键词 | LOOP-HELIX PROTEIN ; GENETIC-CONTROL ; DOMESTICATION ; PLANT ; ORIGIN ; SIZE ; OVEREXPRESSION ; ARCHITECTURE ; CULTIVATION ; TRANSITION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000365049200006 |
| 出版者 | CELL PRESS |
| 资助机构 | Ministry of Science and Technology of China [2013CBA01404, 2012AA10A302] ; Chinese Academy of Sciences [XDA08020101] ; Ministry of Agriculture of China [2014ZX08001004-002-010] ; National Natural Science Foundation of China [31121063, 31471159] ; Science and Technology Commission of Shanghai Municipality [13QA1403900] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/25647]  |
| 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.Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Plant Physiol & Ecol, Natl Ctr Gene Res, Shanghai 200233, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Key Lab Plant Resources, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gu, Benguo,Zhou, Taoying,Luo, Jianghong,et al. An-2 Encodes a Cytokinin Synthesis Enzyme that Regulates Awn Length and Grain Production in Rice[J]. MOLECULAR PLANT,2015,8(11):1635-1650. |
| APA | Gu, Benguo.,Zhou, Taoying.,Luo, Jianghong.,Liu, Hui.,Wang, Yongchun.,...&Han, Bin.(2015).An-2 Encodes a Cytokinin Synthesis Enzyme that Regulates Awn Length and Grain Production in Rice.MOLECULAR PLANT,8(11),1635-1650. |
| MLA | Gu, Benguo,et al."An-2 Encodes a Cytokinin Synthesis Enzyme that Regulates Awn Length and Grain Production in Rice".MOLECULAR PLANT 8.11(2015):1635-1650. |
入库方式： OAI收割
来源：植物研究所
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