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江苏省遗传学会2013年学术研讨会

作者： JIANG Zheng-Ning XING Li-Ping BIE Tong-De ZHANG Bo-Qiao WANG Xiu-E CHEN Pei-Du CAO Ai-Zhong National key laboratory of Crop genetics and Germplasm Enhancement Cytogenetics Institute Nanjing Agricultural University key laboratory of wheat biology and genetic improvement on low & middle yangtze River valley Winter wheat Region (Ministry of Agriculture) Yangzhou Academy of Agricultural Sciences

Stripe rust, caused by Puccinia striiformis f. sp. tritici（Pst）, is one of the most serious diseases of wheat, so exploring of effective resistance-related genes is critical for breeding and studying resistance mechanisms. However, only a few stripe rust resistance genes and defense-related genes have been cloned. Moreover, transgenic wheat with enhanced stripe rust resistance has rarely been reported. Receptor-like proteins（RLPs） are known to be involved in defense and developmental pathways. In this research, a novel RLP gene Ta RLP1.1 was characterized as an important stripe rust defense gene. TaRLP1.1 was screened by GeneChip which was induced by Pst specifically in the resistant variety. Knock down of TaRLP1.1 in the stripe rust resistance plants resulted in increased susceptibility to Pst, and phenolic autofluorogen accumulation at the pathogen–host interaction sites, usually correlated with the hypersensitive response, was decreased dramatically. However, when the TaRLP1.1 was transformed into the susceptible wheat variety Yangmai158, the transgenic plants showed highly increased resistance to Pst, and the hypersensitive response was enhanced at the infection sites. Meanwhile, the expression of the pathogenesis-related genes decreased in the TaRLP1.1 silenced plants and increased in the TaRLP1.1 over-expressed plants. Thus, it was proposed that TaRLP1.1 greatly contributed to the hypersensitive response during the pathogen–host interaction. Along with the functional analysis, an evolutionary study of the TaRLP1 family was performed. Characterization of TaRLP1.1 may facilitate breeding for stripe rust resistance and better understanding of the evolution of the RLP genes in wheat.

关键词： disease resistance hypersensitive response receptor-like protein stripe rust transgenic virus-induced gene silencing

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Chromosome reassignment and evolutionary analysis of the Wcs19and Wcor15genes in wheat

Chromosome reassignment and evolutionary analysis of the Wcs...

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第六届全国小麦基因组学及分子育种大会

作者： Fangfang Liu Hongqi Si Cheng Chang Haiping Zhang Chuanxi Ma School of Agronomy Anhui Agricultural University key laboratory of wheat biology and genetic improvement on South Yellow & Huai River valley Ministry of Agriculture

Wcor15 and Wcs19 are the member of the cold-responsive(Cor) gene family,which could encode the chloroplast-targeted protein when expose to low temperature,play an important roles in the cold hardiness of *** results have shown that both of the Wcor15 and Wcs19 were located on the group 2 *** the same time,the WCOR15 and WCS19 belong to the late embryogenesis abundant(LEA) 3-Like 2 *** research the assignment of Wcs19 and Wcs15 genes in the group 2 chromosomes and evolutionary relationship during wheat allopolyploidization,the two genes were amplified and directly sequenced from the hexaploid(common) wheat,tetraploid species and diploid *** results of genes sequences analysis showed that Wcs15 and Wcs19 were very conservative among hexaploid wheat varieties with different geographical areas,tetraploid species and diploid *** analyzing the nulli-tetrasomic lines of *** Spring,we highlighted that Wcs15,Wcs19 a and Wcs19 bwere found in the line with the exception of nullisomic2A-tetrasomic 2B(N2A-T2B),N2B-T2 A and N2D-T2 B *** further evolutionary analysis demonstrated that Wcs15 was assigned to chromosome 2AL,Wcs19 a was predominated in chromosome 2BL and Wcs19 b was located on chromosome 2DL which was confirmed by ENA sequence *** the same time,they harbored highly similar the N-Terminal ***15,Wcs19 a and Wcs19 b might be three homologous genes located on the same positions of the wheat genome 2 A,2B and 2D *** study provides a basis for more detailed structural analysis of chloroplast-targeted protein in wheat.

关键词： wheat Wcs19 Wcor15 chromosome assignment evolutionary analysis

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genetic diversity and population structure of Gossypium arboreum L. collected in China

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Journal of Cotton Research 2018年第3期1卷 1-8页

作者： JIA Yinhua PAN Zhaoe HE Shoupu GONG Wenfang GENG Xiaoli PANG Baoyin WANG Liru DU Xiongming Institute of Cotton Research of Chinese Academy of Agricultural Sciences State Key Laboratory of Cotton Biology Key Laboratory of Biology andGenetic Improvement of Cotton Ministry of Agriculture

Background: Gossypium arboreum is a diploid species cultivated in the Old World. It possesses favorable characters that are valuable for developing superior cotton ***: A set of 197 Gossypium arboreum accessions were genotyped using 80 genome-wide SSR markers to establish patterns of the genetic diversity and population structure. These accessions were collected from three major G. arboreum growing areas in China. A total of 255 alleles across 80 markers were identified in the genetic diversity ***: Three subgroups were found using the population structure analysis, corresponding to the yangtze River valley, North China, and Southwest China zones of *** growing areas in China. Average genetic distance and Polymorphic information content value of G. arboreum population were 0.34 and 0.47, respectively, indicating high genetic diversity in the G. arboreum germplasm pool. The Phylogenetic analysis results concurred with the subgroups identified by Structure analysis with a few exceptions. Variations among and within three groups were observed to be 13.61% and 86.39%, ***: The information regarding genetic diversity and population structure from this study is useful for genetic and genomic analysis and systematic utilization of economically important traits in G. arboreum.

关键词： Gossypium arboreum L. Population structure genetic diversity genetic differentiation Simple sequence repeat(SSR) markers

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Association and validation of yield-favored alleles in Chinese cultivars of common wheat(Triticum aestivum L.)

Association and validation of yield-favored alleles in Chine...

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第六届全国小麦基因组学及分子育种大会

作者： Jie Guo Chenyang Hao Yong Zhang Boqiao Zhang Xiaoming Cheng Lin Qin Tian Li Weiping Shi Xiaoping Chang Ruilian Jing WuyunYang Wenjing Hu Xueyong Zhang Shunhe Cheng National key laboratory of Crop genetics and Germplasm Enhancement Nanjing Agricultural University key laboratory of Crop Gene Resources and Germplasm Enhancment Ministry of Agriculture/Institute of Crop ScienceChinese Academy of Agricultural Sciences key laboratory of wheat biology and genetic improvement for low & middle yangtze valley(Ministry of Agriculture) Lixiahe Agricultural Institute of Jiangsu Province Crop Research Institute Sichuan Academy of Agricultural Sciences

Common wheat is one of the most important crops in China,which is the largest producer in the world.A set of 230 cultivars was used to identify yield-related loci by association *** set was tested for seven yield-related traits,*** height(PH),spike length(SL),spikelet number per spike(SNPS),kernel number per spike(KNPS),thousand-kernel weight(TKW),kernel weight per spike(KWPS),and sterile spikelet number(SSN) per plant in four environments.A total of 106 simple sequence repeat(SSR) markers distributed on all 21 chromosomes were used to screen the *** one and 19 of them were associated with KNPS and TKW,*** mapping detected 73 significant associations across 50 SSRs,and the phenotypic variation explained(R) by the associations ranged from 1.54 to 23.93%.The associated loci were distributed on all chromosomes except 4A,7A and *** and potentially new alleles were present on 8 chromosomes,namely 1 A,ID,2A,2D,3D,4B,5B and *** analysis showed that genetic effects of associated loci were greatly influenced by association panels,and the R of crucial loci were lower in modern cultivars than in the mini core collection,probably caused by strong selection in wheat *** order to confirm the results of association analysis,yield-related favorable alleles Xgwm132-6B,Xgwm135-1A,Xgwm337-1D and Xgwm102-2D were evaluated in a double haploid(DH) population derived from Hanxuan10×x *** favorable alleles that were validated in various populations might be valuable in breeding for high-yield.

关键词： common wheat yield-related traits association analysis

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Multiple pollutants from crop and livestock production in the yangtze River: status and challenges

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Frontiers of Agricultural Science and Engineering 2024年第1期11卷 134-139,I0005页

作者： Lihua MA Shiyang LI Linfa FANG Xuanjing CHEN Ran XIAO Xiaoxuan SU Zhaolei LI Zhaohai BAI Lin MA Prakash LAKSHMANAN Xinping CHEN Interdisciplinary Research Center for Agriculture Green Development in yangtze River Basin College of Resources and EnvironmentSouthwest UniversityChongqing 400715China Water Systems and Global Change Group Wageningen University&Research6708 PB Wageningenthe Netherlands key laboratory of Agricultural Water Resources Center for Agricultural Resources ResearchInstitute of Genetic and Developmental BiologyChinese Academy of SciencesShijiazhuang 050021China key laboratory of Sugarcane Biotechnology and genetic improvement(Guangxi) Ministry of Agriculture and Rural AffairsGuangxi Key Laboratory of Sugarcane Genetic ImprovementSugarcane Research InstituteGuangxi Academy of Agricultural SciencesNanning 530007China Queensland Alliance for Agriculture and Food Innovation University of QueenslandSt Lucia 4067Australia

The rapid increase in the proportion of cash crops and livestock production in the yangtze River Basin has led to commensurate increases in fertilizer and pesticide inputs. Excessive application of chemical fertilizer, organophosphorus pesticides and inappropriate disposal of agricultural waste induced water pollution and potentially threaten Agriculture Green Development(AGD). To ensure food security and the food supply capacity of the yangtze River Basin, it is important to balance green and development, while ensuring the quality of water bodies. Multiple pollutants affect the transfer, adsorption, photolysis and degradation of each other throughout the soil-plant-water system. This paper considers the impact of multi-pollutants on the nitrogen and phosphorus cycles especially for crops, which are related to achieving food security and AGD. It presents prospective on theory, modeling and multi-pollutant control in the yangtze River Basin for AGD that are of potential value for other developing regions.

关键词： Agriculture Green Development crop production livestock production multi-pollutant models multiple pollutants yangtze River Basin

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Fast,simple,efficient Agrobacterium rhizogenes-mediated transformation system to non-heading Chinese cabbage with transgenic roots

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Horticultural Plant Journal 2024年第2期10卷 450-460页

作者： Huiyu Wang Yushan Zheng Qian Zhou Ying Li Tongkun Liu Xilin Hou State key laboratory of Crop genetics&Germplasm Enhancement Key Laboratory of Biology and Genetic Improvement of Horticultural Crops(East China)Ministry of Agriculture and Rural Affairs of ChinaEngineering Research Center of Germplasm Enhancement and Utilization of Horticultural CropsMinistry of Education of ChinaNanjing Agricultural UniversityNanjingJiangsu 210095China Nanjing Suman Plasma Engineering Research Institute Nanjing Agricultural UniversityNanjingJiangsu 210095China

Non-heading Chinese cabbage, a variety of Brassica campestris, is an important vegetable crop in the yangtze River Basin of China. However,the immaturity of its stable transformation system and its low transformation efficiency limit gene function research on non-heading Chinese cabbage. Agrobacterium rhizogenes-mediated(ARM) transgenic technology is a rapid and effective transformation method that has not yet been established for non-heading Chinese cabbage plants. Here, we optimized conventional ARM approaches(one-step and two-step transformation methods) suitable for living non-heading Chinese cabbage plants in nonsterile environments. Transgenic roots in composite non-heading Chinese cabbage plants were identified using phenotypic detection, fluorescence observation, and PCR analysis. The transformation efficiency of a two-step method on four five-day-old non-heading Chinese cabbage seedlings(Suzhouqing, Huangmeigui, Wuyueman, and Sijiu Caixin) was 43.33%-51.09%, whereas using the stout hypocotyl resulted in a transformation efficiency of 54.88% for the 30-day-old Sijiu *** one-step method outperformed the two-step method;the transformation efficiency of different varieties was above 60%, and both methods can be used to obtain transgenic roots for functional studies within one month. Finally, optimized ARM transformation methods can easily,quickly, and effectively produce composite non-heading Chinese cabbage plants with transgenic roots, providing a reliable foundation for gene function research and non-heading Chinese cabbage genetic improvement breeding.

关键词： Agrobacterium rhizogenes Non-heading Chinese cabbage Transgenic roots Composite plant Transformation efficiency

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Young Leaf White Stripe encodes a P-type PPR protein required for chloroplast development

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Journal of Integrative Plant biology 2023年第7期65卷 1687-1702页

作者： Jie Lan Qibing Lin Chunlei Zhou Xi Liu Rong Miao Tengfei Ma Yaping Chen Changling Mou Ruonan Jing Miao Feng Thanhliem Nguyen Yulong Ren Zhijun Cheng Xin Zhang Shijia Liu Ling Jiang Jianmin Wan State key laboratory of Crop genetics and Germplasm Enhancement Jiangsu Plant Gene Engineering Research CenterNanjing Agricultural UniversityNanjing 210095China National key Facility for Crop Gene Resources and genetic improvement Institute of Crop ScienceChinese Academy of Agricultural SciencesBeijing 100081China

Pentatricopeptide repeat(PPR) proteins function in post-transcriptional regulation of organellar gene expression. Although several PPR proteins are known to function in chloroplast development in rice(Oryza sativa), the detailed molecular functions of many PPR proteins remain ***, we characterized a rice young leaf white stripe(ylws) mutant, which has defective chloroplast development during early seedling ***-based cloning revealed that YLWS encodes a novel P-type chloroplast-targeted PPR protein with 11 PPR motifs. Further expression analyses showed that many nuclear-and plastid-encoded genes in the ylws mutant were significantly changed at the RNA and protein levels. The ylws mutant was impaired in chloroplast ribosome biogenesis and chloroplast development under low-temperature conditions. The ylws mutation causes defects in the splicing of atpF, ndhA, rpl2,and rps12, and editing of ndhA, ndhB, and rps14transcripts. YLWS directly binds to specific sites in the atpF, ndhA, and rpl2 pre-mRNAs. Our results suggest that YLWS participates in chloroplast RNA group II intron splicing and plays an important role in chloroplast development during early leaf development.

关键词： chloroplast development PPR protein ribosome biogenesis RNA splicing

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Weed biology andmanagement in the multi-omics era:Progress and perspectives

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Plant Communications 2024年第4期5卷 16-35页

作者： Ke Chen Haona Yang Di Wu Yajun Peng Lei Lian Lianyang Bai Lifeng Wang key laboratory of Indica Rice genetics and Breeding in the middle and lower Reaches of yangtze River valley Ministry of Agriculture and Rural AffairsHunan Rice Research InstituteHunan Academy of Agricultural SciencesChangsha 410125China State key laboratory of Hybrid Rice Hunan Academy of Agricultural SciencesChangsha 410125China Longping Branch College of BiologyHunan UniversityChangsha 410125China Huangpu Research Institute of Longping Agricultural Science and Technology Guangzhou 510715China Hunan Weed Science key laboratory Hunan Agricultural Biotechnology Research InstituteHunan Academy of Agricultural SciencesChangsha 410125China Qingdao Kingagroot Compounds Co.Ltd Qingdao 266000China

Weeds pose a significant threat to crop production,resulting in substantial yield *** addition,they possess robust weedy traits that enable them to survive in extreme environments and evade human *** recent years,the application of multi-omics biotechnologies has helped to reveal the molecular mechanisms underlying these weedy *** this review,we systematically describe diverse applications of multi-omics platforms for characterizing key aspects of weed biology,including the origins of weed spe-cies,weed classification,and the underlying genetic and molecular bases of important weedy traits such as crop–weed interactions,adaptability to different environments,photoperiodicflowering responses,and herbicide *** addition,we discuss limitations to the application of multi-omics techniques in weed science,particularly compared with their extensive use in model plants and *** this regard,we provide a forward-looking perspective on the future application of multi-omics technologies to weed science *** powerful tools hold great promise for comprehensively and efficiently unraveling the intricate molecular genetic mechanisms that underlie weedy *** resulting advances will facilitate the development of sustainable and highly effective weed management strategies,promoting greener practices in agriculture.

关键词： weeds multi-omics weed management genomics RNA-seq

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Screening for High-Temperature Tolerant Cotton Cultivars by Testing In Vitro Pollen Germination,Pollen Tube Growth and Boll Retention

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Journal of Integrative Plant biology 2006年第6期48卷 706-714页

作者： Zhi Liu You-Lu Yuan Shao-Qing Liu Xiao-Nan Yu Li-Qun Rao College of Bioscience and Biotechnology Hunan Agricultural University Changsha 410128 China Cotton Research Institute Chinese Academy of Agricultural Sciences Key Laboratory of Cotton Genetic Improvement Ministry of Agriculture Anyang 455004 China College of Agronomy Hunan Agricultural University Changsha 410128 China

With radical global climate change and global warming, high temperature stress has become one of major factors exerting a major Influence on crop production, In the cotton （Gossyplum hirsutum L.）-growlng areas of China, especially in the yangtze River valley, unexpected periodic episodes of extreme heat stress usually occur In July and August, the peak time of cotton flowering and boll loading, resulting In lower boll set and lint yield. Breeding programs for screening high temperature-tolerant cotton germplasm and cultlvars are urgent In order to stabilize yield in the current and future warmer weather conditions. In the present study, 14 cotton cultivars were quantified for in vitro pollen germination and pollen tube growth in response to temperatures ranging from 10 to 50 ℃ at 5 ℃ intervals. Different cotton genotypes varied In their in vitro pollen germination and pollen tube length responses to the different temperatures. Maximum pollen germination and pollen tube length ranged from 25.2% to 56.2% and from 414 to 682 pro, respectively. The average cardinal temperatures （Tmin,, Topt, and Tmax） also varied among the 14 cultivars and were 11.8, 27.3, and 42.7 ℃ for pollen germination and 11.8, 27.8, and 44.1 ℃ for maximum pollen tube length. Variations In boll retention and boll numbers per plant in field experiments were found for the 14 cotton cultivars and the boll retention and boll retained per plant on 20 August varied considerably In different years according to weather conditions. Boll retention on 20 August was highly correlated with maximum pollen germination （R^2 = 0.84） and pollen tube length （R^2=0.64）. A screening method based on principle component analysis of the combination of pollen characterlatics In an in vitro experiment and boll retention testing In the field environment was used In the present study and, as a result, the 14 cotton cultlvars could be classified as tolerant, moderately tolerant, moderately susceptible and susceptible to high t

关键词： boll retention cotton high temperature tolerance pollen germination pollen tube growth principle component analysis.

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Genomic and phenotypic signatures provide insights into the wide adaptation of a global plant invader

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Plant Communications 2024年第4期5卷 275-290页

作者： Yan Hao Xin-Feng Wang Yaolin Guo Tian-Yang Li Ji Yang Malika LAinouche Armel Salmon Rui-Ting Ju Ji-Hua Wu Lin-Feng Li Bo Li National Observations and Research Station for Wetland Ecosystems of the yangtze Estuary and Ministry of Education key laboratory for Biodiversity Science and Ecological Engineering Institute of Biodiversity Science and Institute of Eco-ChongmingSchool of Life SciencesFudan UniversityShanghai 200438China State key laboratory of Biocontrol Guangdong Provincial Key Laboratory of Plant ResourcesSchool of Life SciencesSun Yat-sen UniversityGuangzhou 510275China UMR CNRS 6553 Universite´of RennesCampus de Beaulieu35042 Rennes Cedex ParisFrance State key laboratory of Herbage improvement and Grassland Agro-ecosystems College of EcologyLanzhou UniversityLanzhou 730000China Ministry of Education key laboratory for Transboundary Ecosecurity of Southwest China Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology and Centre for Invasion BiologyInstitute of BiodiversitySchool of Ecology and Environmental ScienceYunnan UniversityKunmingYunnan 650504China

Invasive alien species are primary drivers of biodiversity loss and species *** cordgrass(Spartina alterniflora)is one of the most aggressive invasive plants in coastal ecosystems around the ***,the genomic bases and evolutionary mechanisms underlying its invasion success have remained largely ***,we assembled a chromosome-level reference genome and performed phenotypic and population genomic analyses between native US and introduced Chinese *** phenotypic comparisons showed that introduced Chinese populations have evolved competitive traits,such as earlyflowering time and greater plant biomass,during secondary introductions along China’s *** genomic and transcriptomic inferences revealed distinct evolutionary trajectories of low-and high-latitude Chinese *** particular,genetic mixture among different source populations,together with in-dependent natural selection acting on distinct target genes,may have resulted in high genome dynamics of the introduced Chinese *** study provides novel phenotypic and genomic evidence showing how smooth cordgrass rapidly adapts to variable environmental conditions in its introduced ***,candidate genes related toflowering time,fast growth,and stress tolerance(i.e.,salinity and submergence)provide valuable genetic resources for future improvement of cereal crops.

关键词： adaptation natural selection invasive species population genomics Spartina alterniflora

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