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Engineering gossypol biosynthesis and cotton resistance to insects

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Engineering gossypol biosynthesis and cotton resistance to i...

A New Strategy of Insect Pest Control:Down-regulating Cotton Bollworm Gene Expression by Engineering plant Double Stranded RNA

第十一届全国植物基因组学大会

作者： xiaoya chen~*,yingbo mao,Changqing Yang,Xiaoyuan Tao,Lingjian Wang national key laboratory of plant molecular genetics.institute of plant physiology and ecology,shanghai institutes for biological sciences.chinese academy of sciences,shanghai 200032.china

Cotton plants accumulate gossypol and related toxic sesquiterpene aldehydes to protect plants against pathogens and insect ***,these secondary metabolites greatly limit the utilization of cottonseeds as a rich resourc...

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棉花学报 2008年第S1期20卷 8-页

作者： mao Ying-bo,xue xue-yi,WANG Ling-jiang,chen Xiao-ya(national key Lab of plant Mol genetics.institute of plant physiology and ecology,shanghai institutes for biological sciences.chinese academy of sciences,300 Fenglin Road,shanghai 200032.china)

Cotton bollworm(Helicoverpa armigera) is an important agricultural pest that causes severe yield loss to crops,particularly to *** Bt crops have been successful in

关键词： RNAi A New Strategy of Insect Pest Control Down

Hormonal regulation of plant sesquiterpene biosynthesis

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Hormonal regulation of plant sesquiterpene biosynthesis

Engineering purple rice for human health

第十三届全国植物基因组学大会

作者： Gaojie Hong,Zongxia Yu,Jianxu Li,Changqing Yang,xiaoya chen~* national key laboratory of plant molecular genetics,national Center of plant Gene Research(shanghai),institute of plant physiology and ecology,shanghai institute for biological sciences.chinese academy of sciences,shanghai,200032 plant Science Research Center,shanghai chenshan Botanical Garden,shanghai 201602,P.R.china

In plants terpenoids constitute an extremely large and structurally diverse class of natural products,and most of them play versatile ecological roles in mediating the plant interactions with *** are also a valuable source of leading compounds,the anti-malaria drug Qinghaosu(artemisinin),for example,is an endoperoxide sesquiterpene lactone isolated from the traditional herb Artemisia

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Science china(Life sciences) 2018年第3期61卷 365-367页

作者： Xin Fang yingbo mao xiaoya chen national key laboratory of plant molecular genetics CAS Center for Excellence in Molecular Plant Sciences Institute of Plant Physiology and Ecology SIBS Chinese Academy of Sciences plant Science Research Center Shanghai Key Laboratory of Plant Functional Genomics and ResourcesShanghai Chenshan Botanical Garden

Human history of domestication of wild plants as food source has witnessed continuous improvement in nutritional qualities of plant products. However, some nutritional traits were lost during agriculatral breeding （Tieman et al., 2017）, and some are absent in certain wild ancestors and could not be introduced into modem crops by traditional breeding. Micronutrient and phytonutrient deficiencies have devastat- ing effects to human health, especially to poor populations （FAO, 2013）, biofortification of food crops by molecular breeding is important to resolve these problems. Currently, there are two main strategies for biofortification, one is to increase level of already existing health-promotion com- pounds in plants, such as anthocyanin-enriched ＂Purple Tomatoes＂（Butelli et al., 2008） and folate-enriched rice （Blancquaert et al., 2015）. The other is to transfer a biosyn- thetic pathway of bioactive compounds into a plant organ absent of them, such as 13-carotene-enriched ＂Golden Rice＂（Ye et al., 2000; Paine et al., 2005）; this strategy is mostly a difficult task using conventional cloning vector systems or current transgene-stacking vector systems that enable assembly of limited numbers of target genes into single vectors with sophisticated strategies, such as using homing endonuclease sites or Multisite Gateway. Thus,

关键词：健康米饭紫色植物产品工程食物来源调制解调器繁殖期

Transcriptome analysis of three cotton pests reveals features of gene expressions in the mesophyll feeder Apolygus lucorum

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Science china(Life sciences) 2017年第8期60卷 826-838页

作者： Dianyang chen Fangyan chen Chunyu chen xiaoya chen yingbo mao national key laboratory of plant molecular genetics CAS Center for Excellence in Molecular Plant SciencesInstitute of Plant Physiology and EcologyShanghai Institutes for Biological SciencesChinese Academy of SciencesShanghai 200032China University of chinese academy of sciences Beijing 100049China

The green mirid bug Apolygus lucorum is an agricultural pest that is known to cause damage to more than 150 plant species. Here, we report the transcriptomes ofA. lucorum at three different developmental stages （the second and fifth instar nymphs and adults）. A total of 98,236 unigenes with an average length of 1,335nt was obtained, of which 50,640 were annotated, including those encoding digestive enzymes and cytochrome P450s. Comparisons with cotton bollworm and cotton aphid transcriptomes revealed distinct features ofA. lucorum as a mesophyll feeder. The gene expression dynamics varied during development from young nymphs to adults. The high-quality transcriptome data and the gene expression dynamics reported here provide valuable data for a more comprehensive understanding of the physiology and development of mirid bugs, and for mining targets for their control.

关键词： Apolygus lucorum transcriptome digestion enzymes developmental stage

Gossypol: phytoalexin of cotton

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Science china(Life sciences) 2016年第2期59卷 122-129页

作者： Xiu Tian Juxin Ruan Jinquan Huang Xin Fang yingbo mao Lingjian Wang xiaoya chen Changqing Yang School of Life sciences Nanjing University Nanjing 210023 China national key laboratory of plant molecular genetics and national Center for plant Gene Research Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai 200032 China plant Science Research Center Shanghai Chenshan Botanical Garden Shanghai Key Laboratory of Plant Functional Genomics and Resources Shanghai 201602 China

Sesquiterpenoids are a class of 15-carbon secondary metabolites that play diverse roles in plant adaptation to environment. Cotton plants accumulate a large amount of sesquiterpene aldehydes （including gossypol） as phytoalexins against pathogens and herbivores. They are stored in pigment glands of aerial organs and in epidermal layers of roots. Several enzymes of goss- ypol biosynthesis pathway have been characterized, including 3-hydroxy-3-methylglutaryl coenzyme A reductase （HMGR） and farnesyl diphosphate synthase （FPS） that catalyze the formation of the precursor farnesyl diphosphate （FPP）, （＋）-6-cadinene synthase （CDN） which is the first enzyme committed to gossypol biosynthesis, and the downstream enzymes of CYP706B 1 and methyltransferase. Expressions of these genes are tightly regulated during cotton plants development and in- duced by jasmonate and fungi elicitors. The transcription factor GaWRKY1 has been shown to be involved in gossypol path- way regulation. Recent development of new genomic platforms and methods and releases of diploid and tetraploid cotton ge- nome sequences will greatly facilitate the elucidation of gossypol biosynthetic pathway and its regulation.

关键词： cotton secondary metabolism gossypol sesquiterpenoid

Arabidopsis Transcription Factors SPL1 and SPL12 Confer plant Thermotolerance at Reproductive Stage

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molecular plant 2017年第5期10卷 735-748页

作者： Lu-Men Chao Yao-Qian Liu Dian-Yang chen xue-Yi xue Ying-Bo mao Xiao-Ya chen national key laboratory of plant molecular genetics CAS Center for Excellence in Molecular Plant Sciences Shanghai Institute of Plant Physiology and Ecology University of CAS Chinese Academy of Sciences Shanghai 200032 People's Republic of China School of Life Science and Technology ShanghaiTech University Shanghai 201210 People's Republic of China plant Science Research Center Shanghai Key Laboratory of Plant Functional Genomics and Resources Shanghai Chenshan Botanical Garden Shanghai 201602 People's Republic of China These authors contribute equally to this article

plant reproductive organs are vulnerable to heat, but regulation of heat-shock responses in inflorescence is largely uncharacterized. Here, we report that two of the SQUAMOSA PROMOTER BINDING PROTEIN- LIKE （SPL） transcriptional factors in Arabidopsis, SPL1 and SPL12, act redundantly in thermotolerance at the reproductive stage. The spll-1 sp112-1 inflorescences displayed hypersensitivity to heat stress, whereas overexpression of SPL 1 or SPL 12 enhanced the thermotolerance in both Arabidopsis and tobacco. RNA sequencing revealed 1939 upregulated and 1479 downregulated genes in wild-type inflorescence upon heat stress, among which one-quarter （1,040） was misregulated in spll-1 sp112-1, indicating that SPL1 and SPL12 contribute greatly to the heat-triggered transcriptional reprogramming in inflorescence. Notably, heat stress induced a large number of abscisic acid （ABA） responsive genes, of which -39% were disturbed in heat induction in spll-1 sp112-1 inflorescence. Preapplication of ABA and overex- pression of SPL1 restored the inflorescence thermotolerance in spll-1 sp112-1 and in the ABA biosynthesis mutant aba2-1, but not in the pyl sextuple mutant defective in ABA receptors PYR 1/PYL 1/PYL2/PYL4/PYL5/ PYL8. Thus, inflorescence thermotolerance conferred by SPL1 and SPL2 involves PYL-mediated ABA signaling. The molecular network consisting of SPL1 and SPL12 illustrated here shed new light on the mechanisms of plant thermotolerance at the reproductive stage.

关键词： plant thermotolerance inflorescence SPL transcription factor abscisic acid

Arabidopsis trichome research sheds light on cotton fiber development mechanisms

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chinese Science Bulletin 2007年第13期52卷 1734-1741页

作者： GUAN xueying YU Nan SHANGGUAN XiaoXia WANG Shui LU Shan WANG LingJian chen xiaoya national key laboratory of plant molecular genetics Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai 200032 China College of Life sciences Nanjing University Nanjing 210093 China

Aerial surfaces of most land plants have epidermal hairs (trichomes).Both Arabidopsis thaliana trichomes and cotton fibers (seed hairs) are nonglandular hairs with unicellular *** we out-line the recent progress on molecular dissection of Arabidopsis trichome development,including the transcription factors regulating trichome initiation,phytohormones influencing trichome density,and the cytoskeleton formation system governing trichome *** is increasing evidence showing that these processes also control cotton fiber *** several cotton fiber genes are able to rescue the Arabidopsis trichome mutants,we discuss the conservation between Arabidopsis trichome and cotton fiber development.

关键词：阿布属棉属毛状体棉花纤维

New function of gossypol,a natural product of cotton

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Journal of Cotton Research 2022年第4期5卷 42-43页

作者： HUANG Jinquan chen xiaoya State key laboratory of plant molecular genetics CAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyUniversity of CASChinese Academy of SciencesShanghai 200032China

Cotton plants are not only the global crops integrating fiber,oil and protein(Hu et al.2020;Xiao et al.2017),but also the medicinal plants with potent application values,which were well described in the most complete and comprehensive medical book such as Compendium of Materia Medica and chinese Materia ***-ton extract has various activities such as stopping bleed-ing,relieving pain,removing phlegm,and curing chronic *** types of metabolites or defense compounds are produced in cotton plants.

关键词： removing integrating crops