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Plant development and reproduction

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Science Bulletin 2016年第11期61卷 825-826页

作者： dabing zhang State Key Laboratory of Hybrid Rice Shanghai Jiao Tong University-University of Adelaide Joint Centre for Agriculture and Health School of Life Sciences and BiotechnologyShanghai Jiao Tong University Shanghai 20040 China school of agriculture food and wine university of adelaideWaite Campus Urrbrae SA 5064 Australia

As society progresses,we continue to face a global food security crisis because of an increasing demand for agricultural *** supply the world’s growing population with sustainable,nutritious,safe,and affordable high-

关键词：植物发育非生物胁迫繁殖全球气候变化分生组织粮食安全植物结构文化产品

The Development and Standardization of Testing Methods for Genetically Modified Organisms and their Derived Products

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Journal of Integrative Plant Biology 2011年第7期53卷 539-551页

作者： dabing zhang Jinchao Guo National Center for Molecular Characterization of Genetically Modified Organisms School of Life Sciences and Technology Shanghai JiaoTong University Shanghai 200240 China

As the worldwide commercialization of genetically modified organisms （GMOs） increases and consumers concern the safety of GMOs, many countries and regions are issuing labeling regulations on GMOs and their products. Analytical methods and their standardization for GM ingredients in foods and feed are essential for the implementation of labeling regulations. To date, the GMO testing methods are mainly based on the inserted DNA sequences and newly produced proteins in GMOs. This paper presents an overview of GMO testing methods as well as their standardization.

关键词： DNA genetically modified organisms protein standardization testing methods

Stamen specification and anther development in rice

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Chinese Science Bulletin 2009年第14期54卷 2342-2353页

作者： zhang dabing WILSON Zoe A Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders of Ministry of Education School of Life Science and Biotechnology Shanghai Jiaotong University Shanghai 200240 China Plant Sciences Division School of Biosciences University of Nottingham Loughborough Leics LE125RD United Kingdom

Male reproductive development is a complex biological process which includes the formation of the stamen with differentiated anther tissues, in which microspores/pollens are generated, then anther dehiscence and subsequently pollination. Stamen specification and anther development involve a number of extraordinary events such as meristem transition, cell division and differentiation, cell to cell communication, etc., which need the cooperative interaction of sporophytic and gametophytic genes. The advent of various tools for rice functional gene identification, such as complete genome sequence, genome-wide microarrays, collections of mutants, has greatly facilitated our understanding of mechanisms of rice stamen specification and anther development. Male sterile lines are critical for hybrid rice breeding, therefore understanding these processes will not only contribute greatly to the basic knowledge of crop developmental biology, but also to the development of new varieties for hybrid rice breeding in the future.

关键词：水稻育种花药雄蕊组织分化细胞分裂基因鉴定细胞间通讯基因组序列

Molecular and genetic pathways for optimizing spikelet development and grain yield

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aBIOTECH 2020年第4期1卷 276-292页

作者： Zheng Yuan Staffan Persson dabing zhang Joint International Research Laboratory of Metabolic and Developmental Sciences Shanghai Jiao Tong University-University of Adelaide Joint Centre for Agriculture and HealthState Key Laboratory of Hybrid RiceSchool of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghai 200240China School of Biosciences University of MelbourneMelbourneParkvilleVIC 3010Australia Department for Plant and Environmental Sciences University of Copenhagen1871 Frederiksberg CDenmark School of Agriculture Food and WineUniversity of AdelaideWaite CampusUrrbraeSA 5064Australia

The spikelet is a unique structure of inflorescence in grasses that generates one to many flowers depending on its determinate or indeterminate meristem *** growth patterns and number of spikelets,furthermore,define inflorescence architecture and ***,understanding the molecular mechanisms underlying spikelet development and evolution are attractive to both biologists and *** on the progress in rice and maize,along with increasing numbers of genetic mutants and genome sequences from other grass families,the regulatory networks underpinning spikelet development are becoming *** is particularly evident for domesticated traits in *** review focuses on recent progress on spikelet initiation,and spikelet and floret fertility,by comparing results from Arabidopsis with that of rice,sorghum,maize,barley,wheat,Brachypodium distachyon,and Setaria *** progress may benefit genetic engineering and molecular breeding to enhance grain yield.

关键词： Yield improvement Inflorescence Spikelet Fertility Breeding

Cytological analysis and genetic control of rice anther development

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维普期刊数据库

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Journal of Genetics and Genomics 2011年第9期38卷 379-390页

作者： dabing zhang Xue Luo Lu Zhu Institute of Plant Science State Key Laboratory of Hybrid Rice School of Life Sciences and Biotechnology Shanghai Jiao Tong University Shanghai 200240 China Bio-X Research Center Shanghai Jiao Tong University Shanghai 200240 China

Microsporogenesis and male gametogenesis are essential for the alternating life cycle of flowering plants between diploid sporophyte and haploid gametophyte generations. Rice （Oryza sativa） is the world＇s major staple food, and manipulation of pollen fertility is particularly important for the demands to increase rice grain yield. Towards a better understanding of the mechanisms controlling rice male reproductive development, we describe here the cytological changes of anther development through 14 stages, including cell division, differentiation and degeneration of somatic tissues consisting of four concentric cell layers surrounding and supporting reproductive cells as they form mature pollen grains through meiosis and mitosis. Furthermore, we compare the morphological difference of anthers and pollen grains in both monocot rice and eudicot Arabidopsis thaliana. Additionally, we describe the key genes identified to date critical for rice anther development and pollen formation.

关键词： Rice (Oryza Sativa) Anther Developmental stages Cellular morphology Arabidopsis thaliana

MYB56 Encoding a R2R3 MYB Transcription Factor Regulates Seed Size in Arabidopsis thaliana

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Journal of Integrative Plant Biology 2013年第11期55卷 1166-1178页

作者： Yanjie zhang Wanqi Liang Jianxin Shi Jie Xu dabing zhang School of Life Sciences and Biotechnology Shanghai Jiao Tong University

Plant seed size is tightly regulated by the development of seed coat, embryo, and endosperm; however, currently, its underlying mechanism remains unclear. In this study, we revealed a regulatory role of an R2R3 MYB transcription factor MYB56 in controlling seed size specifically in Arabidopsis thaliana L. Loss- of-function or knock-down of MYB56 yielded smaller seeds as compared with the wild type. Conversely, overexpression of MYB56 produced larger seeds. Further observation using semi-thin sections showed that myb56 developed smaller contracted endothelial cells and reduced cell number in the outer integument layer of the seed coat during the seed development; by contrast, MYB56 overexpressing lines had expanded endothelial cells and increased cell number in the outer integument layer of the seed coat, suggesting the essential role of MYB56 in regulating seed development. In addition, reciprocal cross- analysis showed that MYB56 affected the seed development maternally. MYB56 was shown to be dominantly expressed in developing seeds, consistently with its function in seed development. Moreover, quantitative reverse transcription polymerase chain reaction analysis revealed that MYB56 regulates the expression of genes involved in cell wall metabolism such as cell division and expansion. Altogether, our results demonstrated that MYB56 represents an unknown pathway for positively controlling the seed size.

关键词： Cell wall endothelium MYB seed coat seed size.

Plant metabolomics and metabolic biology

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Journal of Integrative Plant Biology 2014年第9期56卷 814-815页

作者： Xiaoquan Qi dabing zhang Institute of Botany the Chinese Academy of Sciences Shanghai Jiaotong University

Plants produce a large array of specialized metabolites（natural products）that not only are essential for growth and development,but also play important roles in adaptation to the variable stressful ***,many plant metabolites are essential nutrient elements for humans and serve as natural ***,study of the biosynthesis of natural products is still in its infancy,because more than 90%of plant metabolites are unknown and only a small number of genes/ enzymes involved in metabolism are identified in the model plants Arabidopsis and rice.

关键词： specialized nutrient adaptation biosynthesis environments genomics mutant anthocyanin biologic transcripts

The Post-meiotic Deficicent Anther1 (PDA1) gene is required for post-meiotic anther development in rice

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Journal of Genetics and Genomics 2010年第1期37卷 37-46页

作者： Lifang Hu Hexin Tan Wanqi Liang dabing zhang School of Life Science and Biotechnology Shanghai Jiao Tong UniversityShanghai 200240China Bio-X Research Center Key Laboratory of Genetics & Development and Neuropsychiatric DiseasesMinistry of EducationShanghai Jiao Tong UniversityShanghai 200240China

To understand the molecular mechanism of male reproductive development in the model crop rice,we isolated a complete male sterile mutant post-meiotic deficient anther1 （pda1） from a γ-ray-treated rice mutant *** analysis revealed that the pda1 mutant was controlled by a recessive nucleus *** pda1 mutant anther seemed smaller with white *** analysis demonstrated that the pda1 mutant anther undergoes normal early tapetum development without obvious altered ***,the pda1 mutant displayed obvious defects in postmeiotic tapetal development,abnormal degeneration occurred in the tapetal cells at stage 9 of anther *** we observed abnormal lipidic Ubisch bodies from the tapetal layer of the pda1 mutant,causing no obvious pollen exine ***-PCR analysis indicated that the expression of genes involved in anther development including GAMYB,OsC4 and Wax-deficient anther1 （WDA1） was greatly reduced in the pda1 mutant *** map-based cloning approach,the PDA1 gene was finely mapped between two markers HLF610 and HLF627 on chromosome 6 using 3,883 individuals of F2 *** physical distance between HLF610 and HLF627 was about 194 *** work suggests that PDA1 is required for post-meiotic tapetal development and pollen/microspore formation in rice.

关键词： rice anther degeneration pollen exine mapping

Genome-Wide Analysis of WOX Gene Family in Rice,Sorghum,Maize,Arabidopsis and Poplar

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Journal of Integrative Plant Biology 2010年第11期52卷 1016-1026页

作者： Xin zhang Jie Zong Jianhua Liu Jinyuan Yin dabing zhang School of Life Science and Biotechnology Shanghai Jiao Tong UniversityShanghai 200240China School of Life Science Shanghai UniversityShanghai 200444China Bio-X Center Key Laboratory of Genetics and Development and Neuropsychiatric DiseasesMinistry of EducationShanghai Jiao Tong UniversityShanghai 200240China

WUSCHEL-related homeobox （WOX） genes form a large gene family specifically expressed in *** are known to play important roles in regulating the development of plant tissues and organs by determining cell *** available whole genome sequences allow us to do more comprehensive phylogenetic analysis of the WOX genes in *** the present study,we identified 11 and 21 WOXs from sorghum （Sorghum bicolor） and maize （Zea mays）,*** 72 WOX genes from rice （Oryza sativa）,sorghum,maize,Arabidopsis （Arabidopsis thaliana） and poplar （Populus trichocarpa） were grouped into three well supported clades with nine subgroups according to the amino acid sequences of their *** phylogenetic relationship was also supported by the observation of the motifs outside the *** observed the variation of duplication events among the nine sub-groups between monocots and eudicots,for instance,more gene duplication events of WOXs within subgroup A for monocots,while,less for dicots in this ***,we observed the conserved intron/exon structural patterns of WOX genes in rice,sorghum and *** addition,WUS （Wuschel）-box and EAR （the ERF-associated amphiphilic repression）-like motif were observed to be conserved among several WOX subgroups in these five *** analysis of expression patterns of WOX genes in rice and Arabidopsis suggest that the WOX genes play conserved and various roles in *** work provides insights into the evolution of the WOX gene family and is useful for future research.

关键词： Genes Families Plants Planting Uses Lymphocytes Populus Maize Storage Rice