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Science China(Life Sciences) 2005年第5期48卷 460-470页

作者： LIU Renhu ZHAO Jianwei XIAO Yong meng jinling National Key Laboratory of Crop Genetic Improvement National Center of Crop Molecular BreedingHuazhong Agricultural UniversityWuhan 430070China

Arabidopsis cDNA arrays were used to screen the local-defense-associated genes in oilseed rape(Brassica napus L.)at the challenge of Sclerotinia sclerotiorum.61 genes with two-fold expression changes were screened out from the local tissue around the *** them,36 unique genes were up-regulated and 25 unique genes were ***-PCR and Northern blot results were consistent with the array results,suggesting Arabidopsis arrays were useful for transcriptional profiling of *** *** of these genes were located in the interval of some QTLs for Sclerotinia resistance in *** by Brassica-Arabi-dopsis comparative *** genes may have priority to be pursued for more intensive research.

关键词： Sclerotinia sclerotiorum Brassica-Arabidopsis comparative mapping microarray defense response plant-patho-gen interaction

Congestion management with demand response considering uncertainties of distributed generation outputs and market prices

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Journal of Modern Power Systems and Clean Energy 2017年第1期5卷 66-78页

作者： Linna NI Fushuan WEN Weijia LIU jinling meng Guoying LIN Sanlei DANG School of Electrical Engineering Zhejiang UniversityHangzhou 310027ZhejiangChina Department of Electrical and Electronic Engineering Universiti Teknologi BruneiBandar Seri Begawan BE1410Brunei Electric Power Research Institute of Guangdong Power Grid Co.Ltd. Guangzhou 510600GuangdongChina

In recent years,much attention has been devoted to the development and applications of smart grid technologies,with special emphasis on flexible resources such as distributed generations(DGs),energy storages,active loads,and electric vehicles(EVs).Demand response(DR) is expected to be an effective means for accommodating the integration of renewable energy generations and mitigating their power output *** their potential contributions to power system secure and economic operation,uncoordinated operations of these flexible resources may result in unexpected congestions in the distribution system *** addition,the behaviors and impacts of flexible resources are normally highly uncertain and complex in deregulated electricity market *** this context,this paper aims to propose a DR based congestion management strategy for smart distribution *** general framework and procedures for distribution congestion management is first presented.A bi-level optimization model for the day-ahead congestion management based on the proposed framework is ***,the robust optimization approach is introduced to alleviate negative impacts introduced by the uncertainties of DG power outputs and market *** economic efficiency and robustness of the proposed congestion management strategy is demonstrated by an actual 0.4 kV distribution system in Denmark.

关键词： Distribution system Congestion management Demand response Load aggregators Uncertainty Robust optimization Bi-level linear programming

Genome-wide recombination variation in biparental segregating and reciprocal backcross populations provides information for introgression breeding in Brassica napus

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The Crop Journal 2023年第1期11卷 208-219页

作者： meng Wang Graham J.King Lei Shi Ruiyuan Li Yi Zhang Xiaohua Wang jinling meng Jinxing Tu Jun Zou National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070HubeiChina Southern Cross Plant Science Southern Cross UniversityPO Box 157LismoreNew South Wales 2480Australia Key Laboratory of Information and Computing Science of Guizhou Province Guizhou Normal UniversityGuiyang 550001GuizhouChina College of Agriculture and Forestry Science Linyi UniversityLinyi 276000ShandongChina

Variation in patterns of recombination in plant genomes provides information about species evolution,genetic diversity and crop improvement. We investigated meiotic crossovers generated in biparental segregating and reciprocal backcross populations of the allopolyploid genome of rapeseed(Brassica napus)(AACC, 2n = 38). A structured set of 1445 intercrossed lines was derived from two homozygous de novo genome-assembled parents that represented the major genetic clusters of semi-winter Chinese and winter European rapeseeds, and was used to increase QTL resolution and achieve genomic reciprocal introgression. A high-density genetic map constructed with 6161 genetic bins and anchored centromere regions was used to establish the pattern of recombination variation in each chromosome. Around 93%of the genome contained crossovers at a mean rate of 3.8 c M Mb^(-1), with the remaining 7% attributed to centromeres or low marker density. Recombination hotspots predominated in the A genome, including two-thirds of those associated with breeding introgression from B. rapa. Genetic background might affect recombination variation. Introgression of genetic diversity from European winter to Chinese semi-winter rapeseed showed an increase in crossover rate under the semi-winter environment. Evidence for an elevated recombination rate having historically contributed to selective trait improvement includes accumulation of favorable alleles for seed oil content on hotspots of chromosome A10. Conversely, strong artificial selection may affect recombination rate variation, as appears to be the case with a coldspot resulting from strong selection for glucosinolate alleles on A09. But the cold region would be promptly reactivated by crossing design indicated by the pedigree analysis. Knowledge of recombination hotspots and coldspots associated with QTL for 22 traits can guide selection strategies for introgression breeding between the two gene pools. These results and rich genomic resources

关键词： Allopolyploid Meiotic crossovers Brassica napus Historical introgression Reciprocal backcross population

Genome-wide prediction for hybrids between parents with distinguished difference on exotic introgressions in Brassica napus

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The Crop Journal 2021年第5期9卷 1169-1178页

作者： Dandan Hu Yusheng Zhao Jinxiong Shen Xiangxiang He Yikai Zhang Yong Jiang Rod Snowdon jinling meng Jochen C.Reif Jun Zou National Key Laboratory of Crop Genetic Improvement College of Plant Science&TechnologyHuazhong Agricultural UniversityWuhan 430070HubeiChina Department of Breeding Research Leibniz Institute of Plant Genetics and Crop Plant Research(IPK)Stadt Seeland 06466Germany Department of Plant Breeding IFZ Research Centre for BiosystemsLand Use and NutritionJustus Liebig UniversityGiessen 35392Germany

Extensive exotic introgression could significantly enlarge the genetic distance of hybrid parental populations to promote strong *** goal of this study was to investigate whether genome-wide prediction can support pre-breeding in populations with exotic *** evaluated seed yield,seed yield related traits and seed quality traits of 363 hybrids of Brassica napus (AACC) derived from two parental populations divergent on massive exotic introgression of related species in three *** hybrids presented strong heterosis on seed yield,which was much higher than other investigated *** genomic best linear unbiased prediction models considering the exotic introgression and different marker effects (additive,dominance,and epistatic effects) were constructed to test the prediction ability for different traits of the *** analysis showed that the trait complexity,exotic introgression,genetic relationship between the training set and testing set,training set size,and environments affected the prediction *** models with best prediction ability for different traits ***,relatively high prediction ability (e.g.,0.728 for seed yield) was also observed when the simplest models were used,excluding the effects of the special exotic introgression and epistasis effect by5-fold cross validation,which would simplify the prediction for the trait with complex architecture for hybrids with exotic *** results provide novel insights and strategies for genome-wide prediction of hybrids between genetically distinct parent groups with exotic introgressions.

关键词： Hybrid Genome-wide prediction Exotic introgression Brassica napus Heterosis

Production of partial new-typed Brassica napus by introgression of genomic components from B. rapa and B. carinata

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Production of partial new-typed Brassica napus by introgress...

Analysis of QTLs for erucic acid and oil content in seeds on A8 chromosome and the linkage drag between the alleles for the two traits in Brassica napus

中国遗传学会功能基因组学研讨会

作者： Li Maoteng Liu Jianmin WangYanting Yu Longjiang meng jinling

A breeding strategy for enriching the germplasm of Brassica napus was proposed by partially replacing the An and Cn subgenomes of B. napus (AnAnCnCn) with the Ar subgenome of B. rapa (ArAr) and Cc of B. carinata (BcBcCcCc), respectively. Progenies with 38 chromosomes that derived from the seeds of self-pollination of pentaploid hybrids (ArAnBcCcCn) were used for further

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Journal of Genetics and Genomics 2010年第4期37卷 231-240页

作者： Zhengying Cao Fang Tian Nian Wang Congcong Jiang Bing Lin Wei Xia Jiaqin Shi Yah Long Chunyu Zhang jinling meng National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural University Wuhan 430070 China

The history of canola breeding began with the discovery of germplasm with low erucic acid content in seeds of spring forage cultivar in the 1950＇s. FAEI mutations led to a dramatic decrease of the seed erucic acid content in Arabidopsis thaliana. The products of the two FAE1 loci, ***1 and ***1, showed additive effects to the level of erucic acid content in oilseed rape. Previous research be- lieved that the pleiotropy of FAE1 was responsible for the decrease in seed oil content along with the reduction of seed erucic acid content in the modem cultivars. TN DH population was developed from a canola cultivar Tapidor and a Chinese traditional cultivar Ningyou7. The population had been tested in 10 and 11 environments to map QTLs for the erucic acid content and oil content in seeds. As the map resolution increased, a novel QTL for seed erucic acid content was revealed, after Meta-analysis, 7 cM away from the most significant seed erucic acid content QTL where ***1 is located. Seven independent QTLs for seed oil content （qOC） were detected around the two seed erucic acid content QTLs （qEA） across 39.20 cM on linkage group AS. Two of the qOCs co-localized with the two qEAs, respectively, and were detected in a single environment. The other five qOCs were detected in 10 of 11 environments independent ofqEAS. Alleles from Tapi- dot in all the QTLs at the （~39.20 cM region contributed negative effects to either erueic acid content or oil content in seeds. Parallel, geno- typing showed that on 5 of the 7 QTLs regions, Tapidor alleles had the same genotypes with that in ＇Liho＇, the original low seed erucic acid content source. Through rounds of crossbreeding with oil-cropped eultivars and intensive selection for multi generations, Tapidor still had the inferior alleles for low seed oil content from ＇Liho＇, the forage rape. This showed a strong linkage drag of low seed oil content, which was controlled by the five qEA-independent qOCs, with low seed erucic acid

关键词： seed oil content enlcic acid content QTL genetic drag

Heterotic patterns in rapeseed (Brassica napus L.) using exotic germplasm for Chinese semi-winter hybrid breeding

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Engineering Sciences 2013年第5期11卷 41-44,50页

作者： Qian Lunwen Chen Lunlin Mei Jiaqin Li Maoteng Martin Frauen Christian Jung Qian Wei meng jinling College of Agronomy and Biotechnology Southwest University National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural University Institute of Crop Science Jiangxi Academy of Agricultural Sciences School of Life Science and Technology Huazhong University of Science and Technology Norddeutsche Pflanzenzucht Hans-Georg Lembke KG Plant Breeding Institute Christian-Albrechts-University of Kiel

Chinese semi-winter rapeseed,genetically differing from winter and spring rapeseed,has been considered to possess strong potential as parent in winter and spring rapeseed hybrid breeding programs. However,no detailed researches have been documented whether winter and spring rapeseed lines have potential for Chinese semiwinter rapeseed hybrid breeding. The objectives of this study are to estimate the potential of winter and spring rapeseed for semi-winter rapeseed hybrid breeding,and to investigate the association of general combining ability(GCA) with adaptation of parental lines by combining with the data in our previous studies. Four winter and four spring male sterile lines were crossed with 14 Chinese semi-winter rapeseed lines to develop 112 hybrids,which were evaluated together with their parents for seed yield under three environments in China. The exotic parental lines were not adapted to local environment as demonstrated by late flowering,low seed weight and poor seed yield per se. However,the hybrids,especially derived from winter rapeseed exhibited strong heterosis for seed yield,indicating that winter rapeseed germplasm has a great potential for rapeseed hybrid breeding in China. Our data suggested a strong association of GCA with their adaptation ability of parental lines,since high to middle correlations were found for local parental lines and low correlations for exotic parental lines under spring,winter and semi-winter eco-growth environments. The hybrid breeding program using exotic germplasm in rapeseed was discussed.

关键词： eco-growth environment GCA heterotic pattem rapeseed

When Rapeseed Flowering?-A answer From QTL Dissection with a Mapping Population of Brassica napus

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When Rapeseed Flowering?-A answer From QTL Dissection with a...

第十二届全国植物基因组学大会

作者： jinling meng National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural University,Wuhan 430070,China

Flowering on time is the primary requirement for plant reproduction and one of most important agronomic traits for crop *** is a great variation on flowering time within divergent types of rapeseed, *** type,semi-winter type and spring type which adapt to quite different environments.A total of 42 quantitative trait loci(QTL) were detected when a double haploid mapping population derived from a cross between winter cultivar and semi-winter cultivar of Brassica napus was grown in 11 *** silico mapping and fine mapping the QTLs revealed various genes *** floral transition in the

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电路板工装结构设计及其振动传递特性研究

航天器环境工程 2022年第5期39卷 489-495页

作者：孟金玲赵宏达华中光电技术研究所武汉光电国家研究中心武汉430223

针对印制电路板环境应力筛选试验要求,为减小夹具对试验结果的影响,提出以电路板尺寸、筛选效率以及固有频率等为约束的电路板工装设计优化方法,并以某型电路板为例进行电路板工装设计与迭代优化;继而开展模态仿真分析验证了工装设计的... 详细信息

针对印制电路板环境应力筛选试验要求,为减小夹具对试验结果的影响,提出以电路板尺寸、筛选效率以及固有频率等为约束的电路板工装设计优化方法,并以某型电路板为例进行电路板工装设计与迭代优化;继而开展模态仿真分析验证了工装设计的有效性;研究设计工装振动特性并固化电路板环境应力筛选测试方案,采用设计工装及固化方案完成电路板随机振动环境应力筛选试验。结果表明:所设计工装的一阶固有频率高于试验规定频率上限,满足工装夹具刚度特性要求。通过合理装夹和调整传感器布局等可使得电路板安装位置加速度功率谱密度曲线及均方根值满足GJB 1032A相关要求。

关键词：印制电路板环境应力筛选工装夹具随机振动振动传递特性固有频率

同方期刊数据库博看期刊评论

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并联有源电力滤波器空间矢量电流控制新方法

电力自动化设备 2013年第8期33卷 83-87,93页

作者：赵伟王文肖勇孟金岭李洲罗安广东电网公司电力科学研究院广东广州510080 湖南大学电气与信息工程学院湖南长沙410082

基于电压空间矢量分析原理,提出一种适用于并联型有源电力滤波器的电流控制方法。揭示了参考电流优化跟踪策略,该策略能保证在单个开关周期内,使误差电流矢量的幅值以最快的速度逼近于零,从而实现参考电流的快速跟踪。基于参考电流优化... 详细信息

基于电压空间矢量分析原理,提出一种适用于并联型有源电力滤波器的电流控制方法。揭示了参考电流优化跟踪策略,该策略能保证在单个开关周期内,使误差电流矢量的幅值以最快的速度逼近于零,从而实现参考电流的快速跟踪。基于参考电流优化跟踪策略,在充分考虑逆变器的实际电压输出能力的情况下,对逆变器输出电压矢量进行精确计算,并通过在单位开关周期内输出多个基本电压矢量的方法合成该矢量,以保证误差电流微分矢量同时具有最优方向和最大幅值,从而在快速跟踪指令电流的同时,不会造成逆变器不可控,提高控制系统的快速性和可靠性。实验结果验证了所提方法的有效性。

关键词：并联有源电力滤波器电流控制空间矢量矢量合成