中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 植物研究所
  3. 中国科学院植物研究所
  4. 中科院植物分子生理学重点实验室
The pleiotropic SEPALLATA- like gene OsMADS34 reveals that the 'empty glumes' of rice (Oryza sativa) spikelets are in fact rudimentary lemmas

文献类型：期刊论文

作者Lin, Xuelei1; Wu, Feng; Du, Xiaoqiu; Shi, Xiaowei; Liu, Yuan; Liu, Shujun; Hu, Yuxin; Theissen, Guenter2; Meng, Zheng
刊名NEW PHYTOLOGIST
出版日期2014
卷号202期号:2页码:689-702
关键词evolution lemma OsMADS34 rice spikelet sub neofunctionalization
ISSN号0028-646X
DOI10.1111/nph.12657
文献子类Article
英文摘要 The single floret of the rice (Oryza sativa) spikelet is subtended by a pair of enigmatic organs usually termed empty glumes' or sterile lemmas'. As the identity of these organs remains essentially unknown, we refer to them as organs of unknown identity' (OUIs). Here we present a novel mutant of the rice SEPALLATA-like gene OsMADS34 which develops, in addition to disorganized branches and sterile seeds, elongated OUIs. The function and evolution of OsMADS34 were studied. Morphological and molecular markers indicate that the elongated OUIs have adopted lemma identity. Evolutionary analyses show that the ancestral genes of the OsM34 subclade evolved under positive selection, and that three specific motifs occur in the C-terminal region of proteins in the OsM34 subclade. Yeast two-hybrid assays revealed that the C-terminal region of OsMADS34 plays a crucial role in mediating protein interactions. Sequence analyses for the wild rice Oryzagrandiglumis which has elongated OUIs revealed the association of OsMADS34 functionality with OUI identity. Our findings support the hypothesis that OUIs originated from the lemmas of degenerate florets under the negative control of OsMADS34. As OUIs neither are homologues to glumes nor have the identity of lemmas any more, but originated from these organs, we suggest calling them rudimentary lemmas'.
学科主题Plant Sciences
出版地HOBOKEN
电子版国际标准刊号1469-8137
WOS关键词MADS-BOX GENE ; FLORAL ORGAN IDENTITY ; MULTIPLE SEQUENCE ALIGNMENT ; MERISTEM IDENTITY ; MAXIMUM-LIKELIHOOD ; PHYLOGENETIC ANALYSIS ; TRANSCRIPTION FACTORS ; EVOLUTIONARY HISTORY ; PROTEIN INTERACTIONS ; ADAPTIVE EVOLUTION
WOS研究方向Plant Sciences
语种英语
WOS记录号WOS:000333060500037
出版者WILEY-BLACKWELL
资助机构National Natural Science Foundation of China [91335102, 31270280] ; Ministry of Science and Technology of China [2011CB100405]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/27270]  
专题中科院植物分子生理学重点实验室
作者单位1.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Univ Jena, Dept Genet, D-07743 Jena, Germany
推荐引用方式
GB/T 7714		 Lin, Xuelei,Wu, Feng,Du, Xiaoqiu,et al. The pleiotropic SEPALLATA- like gene OsMADS34 reveals that the 'empty glumes' of rice (Oryza sativa) spikelets are in fact rudimentary lemmas[J]. NEW PHYTOLOGIST,2014,202(2):689-702.
APA Lin, Xuelei.,Wu, Feng.,Du, Xiaoqiu.,Shi, Xiaowei.,Liu, Yuan.,...&Meng, Zheng.(2014).The pleiotropic SEPALLATA- like gene OsMADS34 reveals that the 'empty glumes' of rice (Oryza sativa) spikelets are in fact rudimentary lemmas.NEW PHYTOLOGIST,202(2),689-702.
MLA Lin, Xuelei,et al."The pleiotropic SEPALLATA- like gene OsMADS34 reveals that the 'empty glumes' of rice (Oryza sativa) spikelets are in fact rudimentary lemmas".NEW PHYTOLOGIST 202.2(2014):689-702.

入库方式： OAI收割

来源：植物研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。