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| 1 | ABNORMAL FLOWER AND GRAIN 1 encodes OsMADS6 and determines palea identity and affects rice grain yield and quality显示文摘The palea and lemma are floral organ structures unique to grasses;these structures form the hull and directly affect grain size and quality. However, the molecular mechanisms controlling the development of the hull are not well understood. In this study, we characterized the rice(Oryza sativa) abnormal flower and grain1(afg1) mutant, a new allele of OsMADS6. Similar to previously characterized osmads6 alleles, in the afg1 floret, the palea lost its marginal region and acquired the lemma identity. However, in contrast to other osmads6 alleles, the afg1 mutant showed altered grain size and grain quality, with decreased total starch and amylose contents, and increased protein and soluble sugar contents. The analysis of transcriptional activity suggested that AFG1 is a transcriptional activator and may affect grain size by regulating the expression levels of several genes related to cell expansion and proliferation in the afg1 mutant. These results revealed that AFG1 plays an important role in determining palea identity and affecting grain yield and quality in rice. | Xiaoqi Yu Saisai Xia Qiankun Xu Yuanjiang Cui Ming Gong Dali Zeng Qiang Zhang Lan Shen Guiai Jiao Zhenyu Gao Jiang Hu Guangheng Zhang Li Zhu Longbiao Guo Deyong Ren Qian Qian | 2020 | Science China(Life Sciences)2020，63，2： | 10 |
| 2 | Octupole corner state in a three-dimensional topological circuit显示文摘Higher-order topological insulators(HOTIs)represent a new family of topological materials featuring quantized bulk polarizations and zero-dimensional corner states.In recent years,zero-dimensional corner states have been demonstrated in two-dimensional systems in the form of quadrupole modes or dipole modes.Due to the challenges in designing and constructing three-dimensional systems,octupole corner modes in 3D have not been observed.In this work,we experimentally investigate octupole topological phases in a three-dimensional electrical circuit,which can be viewed as a cubic lattice version of the Hofstadter model with aπ-flux threading each plaquette.We experimentally observe in our higher-order topological circuit a 0D corner state manifested as a localized impedance peak.The observed corner state in the electrical circuit is induced by the octupole moment of the bulk circuit and is topologically protected by anticommuting spatial symmetries of the circuit lattice.Our work provides a platform for investigating higher-order topological effects in three-dimensional electrical circuits. | Shuo Liu Shaojie Ma Qian Zhang Lei Zhang Cheng Yang Oubo You Wenlong Gao Yuanjiang Xiang Tie Jun Cui Shuang Zhang | 2020 | Light(Science & Applications)2020，9，1： | 3 |
| 3 | LRG1 maintains sterile lemma identity by regulating OsMADS6 expression in rice显示文摘Dear Editor,Spikelet is the unique structural unit of grass panicles with florets and diverse glume-like organs.In rice,a normal spikelet usually has two pairs of glume-like organs,including a pair of sterile lemmas and a pair of rudimentary glumes.Generally,the sterile lemma is considered to be the severely degenerated bract,but its origin is still controversial. | Qiankun Xu Xiaoqi Yu Yuanjiang Cui Saisai Xia Dali Zeng Qian Qian Deyong Ren | 2021 | Science China(Life Sciences)2021，64，7： | 2 |
| 4 | A review of glacial sequences of the Kunlun Pass, northern Tibetan Plateau显示文摘 | Gengnian Liu Xiaoyong Zhang Zhijiu Cui Yongqiu Wu Yuanjiang Ju | 2006 | Quaternary International2006，，： | 1 |
| 5 | Late Pleistocene glaciation of the Diancang and Gongwang Mountains, southeast margin of the Tibetan plateau显示文摘 | Jianqiang Yang Wei Zhang Zhijiu Cui Chaolu Yi Kexin Liu Yuanjiang Ju Xiaoyong Zhang | 2006 | Quaternary International2006，，： | 1 |
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