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Rice science 2024年第3期31卷 317-327,I0042-I0045页

作者： LI Dian DUAN Wenjing LIU Qun’en WU Weixun ZHAN Xiaodeng SUN Lianping ZHANG Yingxin cheng shihua State Key Laboratory of Rice Biology and Breeding China National Rice Research InstituteHangzhou 310006China

Accurate genomic information is essential for advancing genetic breeding research in specific rice *** study presented a gapless genome assembly of the indica rice cultivar Zhonghui 8015(ZH8015)using Pac Bio HiFi,Hi-C,and ONT(Oxford Nanopore Technologies)ultra-long sequencing technologies,annotating 43037 gene ***,utilizing this genome along with transcriptomic and metabolomic techniques,we explored ZH8015's response to brown planthopper(BPH)*** transcriptomic sampling indicated significant changes in gene expression levels around 48 h after BPH *** analysis revealed particularly significant alterations in genes related to reactive oxygen species scavenging and cell wall *** results demonstrated marked increases in levels of several monosaccharides,which are components of the cell wall and dramatic changes in flavonoid *** association analysis identified differentially expressed genes associated with key metabolites,shedding light on ZH8015's response to BPH *** summary,this study constructed a reliable genome sequence resource for ZH8015,and the preliminary multi-omics results will guide future insect-resistant breeding research.

关键词： brown planthopper gapless genome genome assembly multi-omics Nilaparvata lugens rice

QTL Mapping for Plant Height Using Introgression Lines Derived from Zhonghui 8015 and Wild Rice(Oryza rufipogon)

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Rice science 2022年第6期29卷 503-506,I0002-I0006页

作者： YANG Qinqin ZHANG Yingxin XUE Pao WEN Xiaoxia LIU Ling XU Peng ZHAN Xiaodeng CAO Liyong cheng shihua WU Weixun China National Center for Rice Improvement/State Key Laboratory of Rice Biology China National Rice Research InstituteHangzhou 310006China Northern Center of China National Rice Research Institute Shuangyashan 155600China

Many excellent genes in wild rice have been lost during the domestication of wild rice to cultivated *** this study,introgression lines(ILs)were produced with a wild rice(Oryza rufipogon)accession,BJ194,as a donor parent and an indica restorer line,Zhonghui 8015(ZH8015),as a recipient parent to map QTLs for plant *** identified four QTLs(qPH3.1,qPH3.2,qPH2,and qPH8)related to plant height distributed on chromosomes 2,3 and ***,we sequenced and analyzed qPH3.2 located in the interval of RM15753-RM3525,and found this QTL may be a new locus regulating rice plant height.

关键词： Oryza cultivated Zh

Fine mapping and candidate gene analysis of qHD1b,a QTL that promotes flowering in common wild rice(Oryza rufipogon)by up-regulating Ehd1

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The Crop Journal 2022年第4期10卷 1083-1093页

作者： Ling Liu Yingxin Zhang Zhengfu Yang Qinqin Yang Yue Zhang Peng Xu Jiaxin Li Anowerul Islam Liaqat Shah Xiaodeng Zhan Liyong Cao shihua cheng Weixun Wu China National Center for Rice Improvement and State Key Laboratory of Rice Biology China National Rice Research InstituteHangzhou 310006ZhejiangChina State Key Laboratory of Subtropical Silviculture Zhejiang A&F UniversityHangzhou 311300ZhejiangChina Northern Center of China National Rice Research Institute Hangzhou 310006ZhejiangChina

Heading date(flowering time)determines the adaptability of cultivars to different *** report the fine mapping and candidate gene analysis of qHD1b,a quantitative trait locus(QTL)responsible for early flowering that was derived from common wild rice(***)under both short-day and longday *** introgression line IL7391,which carried segments from common wild rice in a Zhonghui 8015(ZH8015)background,exhibited early heading compared to the background and was crossed with ZH8015 to generate BC_(5)F_(2:3) families for QTL *** enabled the identification of two heading-date QTL,named qHD1b and qHD7,of which the first was selected for further ***-resolution linkage analysis was performed in BC_(5)F_(4:5) and BC_(5)F_(6) populations,and the location of qHD1b was confined to a 112.7-kb interval containing 17 predicted *** of these genes contained polymorphisms in the promoter or coding regions and were thus considered as *** analysis revealed a positive association between LOC_Os01g11940 expression and early *** locus was annotated as OsFTL1,which encodes an ortholog of Arabidopsis Flowering Locus T and was the most likely candidate gene for *** study revealed that qHD1b acts as a floral activator that promotes flowering by up-regulating Ehd1,Hd3a,RFT1,OsMADS14,and OsMADS15 under both shortday and long-day *** experiments showed that qHD1b affected several yield-related agronomic traits including 1000-grain weight and grain ***1b could be useful for marker-assisted selection and breeding of early-maturing cultivars.

关键词： Rice Heading date Quantitative trait locus qHD1b Fine mapping

Simulation of rainfall-runoff and watershed convergence process in the upper reaches of Heihe River Basin,July 2002

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Science China Earth Sciences 2004年第Z1期47卷 1-8页

作者： GAO Yanhong L(U) shihua cheng Guodong Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China

The watershed flow concentration scheme in the distributed hydrology-soil- vegetation model (DHSVM) is coupled with the mesoscale atmospheric model MM5 version 3.5, in which the Oregen States University land surface model (OSULSM) was involved. The flood event which happened in July 2002 in the upper reaches of Heihe river basin is simulated and the surface flow convergence process is shown with this coupled model. It has been concluded that times water head reaches each place of the basin are different. Water amount at each point is split-flow proportionally as the drops in elevation between it and neighbor points. Large part of the water amount pass away in greater slope direction and small part pass away in smaller slope *** of the slope convergence makes the atmospheric model redistributes the surface water laterally.

关键词： distributed hydrology-soil-vegetation model, mesoscale atmospheric model, watershed flow concentration process.

Breeding strategies for increasing yield potential in super hybrid rice

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Frontiers of Agricultural Science and Engineering 2015年第4期2卷 277-282页

作者： shihua cheng Xiaodeng ZHAN Liyong CAO China National Rice Research Institute Hangzhou 310006China

Super hybrid rice breeding is a new breeding method combining semi-dwarf breeding and heterosis breeding using germplasm and gene-environment *** paper reviews the breeding strategies of super hybrid rice breeding in China,focusing on the utilization of heterosis of indica and japonica subspecies,construction of ideal plant architecture and pyramiding of disease resistant genes in restorer *** develop super hybrid rice,considerable effort should be made to explore genes related with high yield,good quality,resistance to pests and diseases,tolerance to *** breeding methods in combination with crossing techniques should be adopted in super hybrid rice breeding.

关键词： super hybrid rice breeding strategies yield potential

Association Mapping of Quantitative Trait Loci for Grain Size in Introgression Line Derived from Oryza rufipogon

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Rice science 2020年第3期27卷 246-254页

作者： Kashif HUSSAIN ZHANG Yingxing Workie ANLEY Aamir RIAZ Adil ABBAS MdHasanuzzaman RANI WANG Hong SHEN Xihong CAO Liyong cheng shihua Key Laboratory for Zhejiang Super Rice Research&State Key Laboratory of Rice Biology China National Rice Research InstituteHangzhou 310006China Southern Rice Research Institute Thatta Agriculture Research WingGovernment of SindhSindh 73130Pakistan Department of Plant Sciences University of GondarP.O.Box 196Ethiopia Bangladesh Institute of Nuclear Agriculture Dhaka 2202Bangladesh

Grain size is one of the critical agronomic traits governing grain yield and quality in ***,the underlying genetic mechanisms that control grain size in rice are poorly *** used an introgression line derived from Zhonghui 8015 and Oryza rufipogon *** introgression line was evaluated under two different environmental conditions to dissect the quantitative trait loci controlling grain ***-wide association study(GWAS)was performed using 28193 SNPs through a general linear model,and 56 significant SNPs on different loci associated with the 4 grain size traits were *** genes including GS3 and q GL3 showed substantial effects on grain length and *** new stable loci were identified with pleiotropic effects on grain ***,gene expression analyses,combined gene-based associations,and functional annotations permitted the shortlisting of important dominant genes including GS3 and q GL3.

关键词： grain size association mapping Oryza sativa Oryza rufipogon quantitative trait locus genome-wide association analysis

Quantitative Trait Loci Mapping for Rice Yield-Related Traits Using Chromosomal Segment Substitution Lines

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Rice science 2019年第5期26卷 261-264页

作者： LI Zihe Aamir RIAZ ZHANG Yingxin Galal Bakr ANIS ZHU Aike CAO Liyong cheng shihua Key Laboratory for Zhejiang Super Rice Research/National Center for Rice Improvement/China National Rice Research Institute Hangzhou 310006China Rice Research and Training Center/Agriculture Research Center Field Crops Research InstituteSakhaKafrelsheikh 33717 Egypt

Rice(Oryza sativa L.)is an important cereal crop,consumed as a staple by more than 50%of the global population(Gathala et al,2011).In Asian countries,the rice production increased to 695.5 million tones in the last years,and this increasing was caused by the main source of income and employment in these *** high-yielding hybrid rice is a potentially promising solution for addressing food shortages caused by marked increases in the global *** progress in DNA marker technology and the construction of linkage maps has enabled the detection of quantitative trait loci(QTLs)that regulate different agronomic traits applicable to breeding(Parida et al,2006;Zhang et al,2017).

关键词： breeding cereal linkage

Effects of GS3 and GL3.1 for Grain Size Editing by CRISPR/Cas9 in Rice

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Rice science 2020年第5期27卷 405-413,I0024页

作者： Chen Yuyu Zhu Aike Xue Pao Wen Xiaoxia Cao Yongrun Wang Beifang Zhang Yue Shah Liaqat cheng shihua Cao Liyong Zhang Yingxin State Key Laboratory of Rice Biology and Chinese National Center for Rice Improvement China National Rice Research InstituteHangzhou 311401China National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China Nanch ong Academy of Agricultural Sciences Ncmchong 637000China

Grain size is one of key agronomic traits associated with grain yield and grain quality. Both major quantitative trait loci GS3 and GL3.1 play a predominant role in negative regulation of grain size. In this study, a CRISPR/Cas9-mediated multiplex genome editing system was used to simultaneously edit GS3 and GL3.1 in a typical japonica rice Nipponbare. In T1 generation, we found that gs3 formed slender grain with lower chalkiness percentage, while gs3gl3.1 produced larger grain with higher chalkiness percentage. In terms of other agronomic traits, flag leaf size, grain number and grain yield of both gs3 and gs3gl3.1 mutants were affected. It is noteworthy that gs3 and gs3gl3.1 mutants both led to dramatical reduction of grain number, thereby decreased grain yield. In conclusion, these results indicated that knockout of GS3 and GL3.1 could rapidly improve grain size, but probably have some negative influences on grain quality and grain yield.

关键词： rice GS3 GL3.1 grain size grain quality grain yield CRISPR/Cas9

Development of Chromosome Segment Substitution Lines and Genetic Dissection of Grain Size Related Locus in Rice

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Rice science 2021年第4期28卷 322-324,I0012-I0017页

作者： Aamir Riaz Wang Huimin Zhang Zhenhua Workie Anley Zegeye Li Yanhui Wang Hong Xue Pao Peng Zequn Shen Xi hong cheng shihua Zhang Yingxin State Key Laboratory of Rice Biology/National Center for Rice Improvement China National Rice Research InstituteHangzhou 310006China Department of Plant Science University of GondarGondar 196Ethiopia

To investigate the genetic bases of grain weight(GW),a set of 76 chromosome segment substitution lines(CSSLs,BC4F5)were developed from the cross between Xieqingzao B(XQZB)and Zhonghui 9308(ZH9308)using a marker-assisted selection(MAS).All substituted segments represented by 120 markers in those lines covered 96.7%of the donor parent(ZH9308).Consequently,two QTLs(qTGW1 and qTGW6)for 1000-grain weight(TGW)were preliminarily mapped on chromosomes 1 and 6,*** line CSSL7 was selected for further mapping of qGL1.4/*** a result,qGL1.4 was validated and narrowed to a 1.4 Mb interval between markers InDel15 and RM11872 using secondary F2,and narrowed to a 500 kb in F2:3 populations between markers RM11824 and *** F4:5 secondary population,using homozygous recombinant strategy,qGL1.4 was finally fine-mapped to a 286.4 kb region between markers D-12 and *** addition,a near-isogenic line(NIL)harbouring qGL1.4 was developed using MAS approach,which showed enhanced grain length compared with ZH9308 without changing other *** summary,these results lay a foundation for the genetic isolation of qGL1.4 and molecular breeding in rice.

关键词： breeding narrow bases

Super Rice Breeding in China

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Chinese Rice Research Newsletter 2001年第2期9卷 13-15页

作者： cheng shihua MIN Shaokai CNRRI Hangzhou 310006,China CNRRI

1. Dernand for super high yield rice in ChinaRice is one of the main staple food in China. Theperformance of rice sector in production and yield had been

关键词： Super Rice Breeding in China high