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| 1 | Loss of Gn1a/OsCKX2 confers heavy-panicle rice with excellent lodging resistance显示文摘Significant achievements have been made in breeding programs for the heavy-panicle-type(HPT)rice(Oryza sativa) in Southwest China. The HPT varieties now exhibit excellent lodging resistance,allowing them to overcome the greater pressures caused by heavy panicles. However, the genetic mechanism of this lodging resistance remains elusive. Here, we isolated a major quantitative trait locus, Panicle Neck Diameter 1(PND1), andidentified the causal gene as GRAIN NUMBER 1 A/CYTOKININ OXIDASE 2(Gn1 A/Os CKX2). The null gn1 a allele from rice line R498(gn1 aR498) improved lodging resistance through increasing the culm diameter and promoting crown root development.Loss-of-function of Gn1 a/Os CKX2 led to cytokinin accumulation in the crown root tip and accelerated the development of adventitious roots. Gene pyramiding between the null gn1 aR498 allele with two gain-of-function alleles, STRONG CULM 2(SCM2)and SCM3, further improved lodging resistance.Moreover, Gn1 a/Os CKX2 had minimal influence on overall rice quality. Our research thus highlights the distinct genetic components of lodging resistance of HPT varieties and provides a strategy for tailormade crop improvement of both yield and lodging resistance in rice. | Bin Tu Zhang Tao Shiguang Wang Lei Zhou Ling Zheng Chun Zhang Xinzi Li Xiaoyu Zhang Junjie Yin Xiaobo Zhu Hua Yuan Ting Li Weilan Chen Peng Qin Bingtian Ma Yuping Wang Shigui Li | 2022 | Journal of Integrative Plant Biology2022，64，1： | 5 |
| 2 | Ultralow friction polymer composites incorporated with mono-dispersed oil microcapsules显示文摘Ultralow friction polymer composites were prepared by adding oil-loaded microcapsules into epoxy(EP)resin.Mono-dispersed polystyrene(PS)/poly alpha olefin(PAO)microcapsules with a diameter of~2μm and a shell thickness of~30 nm were prepared by solvent evaporation method in an oil-in-water emulsion.The lubrication behaviors of the EP resin composites with oil-loaded microcapsules have been investigated under different loads and sliding speeds.As compared with the pure EP resin,the friction coefficient of the composite could be reduced to 4%(from 0.71 to 0.028)and the wear rate could be decreased up to two orders of magnitude.It was demonstrated that the released PAO oil from the microcapsules during the friction process produced a boundary lubricating film,which could prevent the direct contact of two rubbing surfaces,and thus leading to an extremely low friction coefficient and wear rate.Moreover,the composites with microcapsules could achieve comparable lubrication properties to the case under the external lubrication condition,while the former case could effectively minimize the lubricant leakage and improve the lubrication efficiency. | Lin ZHANG Guoxin XIE Shuai WU Shiguang PENG Xiaoqing ZHANG Dan GUO Shizhu WEN Jianbin LUO | 2021 | Friction2021，9，1： | 3 |
| 3 | A natural allele of TAW1 contributes to high grain number and grain yield in rice显示文摘Grain number per panicle (GNP) is a complex trait controlled by quantitative trait loci (QTL),directly determining grain yield in rice.Identifying GNP-associated QTL is desirable for increasing rice yield.A rice chromosome segment substitution line (CSSL),F771,which showed increased panicle length and GNP,was identified in a set of CSSLs derived from a cross between two indica cultivars,R498 (recipient) and WY11327 (donor).Genetic analysis showed that the panicle traits in F771 were semidominant and controlled by multiple QTL.Six QTL were consistently identified by QTL-seq analysis.Among them,the major QTL q PLN10 for panicle length and GNP was localized to a 121-kb interval between markers N802 and N909 on chromosome 10.Based on quantitative real-time PCR and sequence analysis,TAWAWA1(TAW1),a known regulator of rice inflorescence architecture,was identified as the candidate gene for q PLN10.A near-isogenic line,NIL-TAW1,was developed to evaluate its effects.In comparison with the recurrent parent R498,NIL-TAW1 showed increased panicle length (14.0%),number of secondary branches (20.9%) and GNP (22.0%),and the final grain yield per plant of NIL-TAW1 was increased by18.6%.Transgenic experiments showed that an appropriate expression level of TAW1 was necessary for panicle development.Haplotype analysis suggested that the favorable F771-type (Hap 13) of TAW1was introduced from aus accessions and had great potential value in high-yield breeding both in indica and japonica varieties.Our results provide a promising genetic resource for rice grain yield improvement. | Hua Yuan Zhengyan Xu Xueqin Tan Peng Gao Mengya Jin Wencheng Song Shiguang Wang Yunhai Kang Peixiong Liu Bin Tu Yuping Wang Peng Qin Shigui Li Bingtian Ma Weilan Chen | 2021 | The Crop Journal2021，9，5： | 2 |
| 4 | Arabinose substitution degree in xylan positively affects lignocellulose enzymatic digestibility after various NaOH/H 2 SO 4 pretreatments in Miscanthus显示文摘 | Fengcheng Li Shuangfeng Ren Wei Zhang Zhengdan Xu Guosheng Xie Yan Chen Yuanyuan Tu Qing Li Shiguang Zhou Yu Li Fen Tu Lin Liu Yanting Wang Jianxiong Jiang Jingping Qin Shizhong Li Qiwei Li Hai-Chun Jing Fasong Zhou Neal Gutterson Liangcai Peng | 2012 | Bioresource Technology2012，，： | 1 |
| 5 | Physically based simulation of thin-shell ob- jects'burning显示文摘 | Shiguang Liu Qiguang Liu Tai An Jizhou Sun Qunsheng Peng | 2009 | The Visual Computer2009，25，57： | 1 |
| 6 | Physically based simulation of Buddha Glory显示文摘这篇论文建议相片的一个新奇方法佛像光荣的现实主义的模拟,能在中国在著名佛教神圣陆地的区域被观察的伟大的视觉美丽的自然现象。这现象被水微滴的 back-scattering 主要在雾或云引起。模仿光荣,我们首先计算光谱用 Mie 散布散布光荣戒指的紧张理论。我们然后介绍一个新阴影模型在光荣戒指以内决定“佛陀”的头和身体的使变形的形状。象在佛像光荣的形状和颜色上的雾或云的水微滴的太阳的举起角度,密度和尺寸那样的大气的参数的 affect 也是计算的。为显示,我们采用不可分的散布的路径的方法产生佛像光荣的整个稀释景色。与真正的佛像光荣显示的相片相比,我们的合成结果是相当令人满意的。 | LIU Shiguang WANG Zhangye GONG Zheng WANG Changbo PENG Qunsheng | 2006 | Progress in Natural Science:Materials International2006，16，6： | 1 |
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