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The differential reversion of ethylene response by ETRl and ERS1 implies functional significance of ethylene receptor collaboration

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The differential reversion of ethylene response by ETRl and ...

2011全国植物生物学研讨会

作者： qian liu and chi-kuang wen~* national key laboratory of plant molecular genetics,institute of plant physiology and ecology, shanghai institutes for biological sciences,chinese academy of sciences,300 fenglin rd,shanghai 2.0032,china

In Arabidopsis,the ethylene signal is mediated by a family of five receptor members while little is known about the nature of the receptor signal and how the five receptor members may act *** we show that ETR1,but not ERS 1,was able to reverse ethylene growth inhibitions to a great extent upon 1-MCP,an ethylene antagonist,treatment in the absence of other ***-1,ers 1-1,and ers 1 are ethylene-insensitive ***-1 substantially repressed various ethylene responses independent of other receptor *** inhibition of ethylene response

关键词： Ethylene etr1-1 ers1-1 ers1C65Y receptor collaborations

A Study of Transmitter-on ETR1 and ERS1 Signaling Implies Differential Collaborations of Arabidopsis Ethylene Receptors

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A Study of Transmitter-on ETR1 and ERS1 Signaling Implies Di...

植物分子生物学与现代农业——2010全国植物生物学研讨...

Ethylene responses are modulated by a family of five ethylene receptor members in *** the five receptor members may function individually or collaboratively remains *** addressed this question by examining if transmit...

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RTE1 Is a Golgi-Associated and ETR1-Dependent Negative Regulator of Ethylene Responses

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RTE1 Is a Golgi-Associated and ETR1-Dependent Negative Regul...

2007年全国植物生长物质研讨会

作者： Xin Zhou qian liu Fang Xie chi-kuang wen~* national key laboratory of plant molecular genetics institute of plant physiology and ecology shanghai institutes for biological sciences chinese academy of sciences shanghai 2.0032 china

＜正＞Arabidopsis（Arabidopsis thaliana）RTE1 encodes a membrane protein and negatively regulates ethylene *** and transformation studies suggest that the function of the wild-type RTE1 is primarily dependent on ETR1 ...

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Identification and Characterization of glnA Promoter and its Corresponding Trans-regulatory Protein GlnR in the Rifamycin SV Producing Actinomycete,Amycolatopsis mediterranei U32

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Acta Biochimica et Biophysica Sinica 2006年第12期38卷 831-843页

作者： Hao YU~(1&) wen-Tao PENG~1 Yang liu~1 Ting WU~2 Yu-Feng YAO~1 Ming-Xue CUI~1 Wei-Hong JIANG~1 Guo-Ping ZHAO~(1,3,4*) 1 laboratory of molecular Microbiology,institute of plant physiology and ecology,shanghai institutes for biological sciences,chinese academy of sciences,shanghai 2.0032,china 2 Department of Medicinal Chemistry,School of Pharmacy,Fudan University,shanghai 2.0032,china 3 State key laboratory of Genetic Engineering & Department of Microbiology,School of Life Science,Fudan University,shanghai 200433,china 4 laboratory of Disease and Health Genomics,chinese national Human Genome Center at shanghai,shanghai 201203,china laboratory of molecular Microbiology Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai 200032 China Department of Medicinal Chemistry School of Pharmacy Fudan University Shanghai 200032 China State key laboratory of Genetic Engineering & Department of Microbiology School of Life Science Fudan University Shanghai 200433 China laboratory of Disease and Health Genomics Chinese National Human Genome Center at Shanghai Shanghai 201203 China

The genetic requirements for the transcription of glnA,encoding the major glutaminesynthetase in a rifamycin SV-producing Amycolatopsis mediterranei strain,U32,were *** experiments showed that the promoter of U32 glnA （pglnA） was likely to have two transcriptioninitiation sites:P1and P2,located 157 and 45 nucleotides （nt） upstream of the translational start codon,*** mobility shift and DNase I footprinting analyses revealed a 30 bp cis-element locatedat 45 to 75 nt downstream of P1,or 38 to 68 nt upstream of *** sequence of the cis-element displayedhigh similarity to the corresponding regions of pglnA from Streptomyces coelicolor and *** as a reporter gene,the expression levels of U32 pglnA and its deletion derivatives under differentnitrogen-source conditions were analyzed by detecting the catechol dioxygenase activities in ***54,*** J508 and *** FS10 （glnR mutant）.These in vivo studies showed that theactivation of U32 pglnA in *** required GlnR,and its binding to the U32 pglnA was furtherconfirmed by the gel mobility shift *** and heterologous expression of the U32 glnR allowed usto detect the in vitro interaction between the U32 GlnR and the corresponding pglnA *** shown by in vivo glnR inactivation and complementation indicated that GlnR is essential for theactive transcription of glnA in U32.

关键词： glnA promoter cis-element glnR Amycolatopsis mediterranei

Negative Regulation of Receptor Signaling by ERS1

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Negative Regulation of Receptor Signaling by ERS1

上海市植物生理学会成立三十周年庆祝活动暨第三届上海市植物生理学青年学术研讨会

作者： qian liu, Chan Xu, and chikuang wen* national laboratory of plant molecular genetics, institute of plant physiology and ecology, shanghai institutes for biological sciences, chinese academy of sciences, shanghai 2.0032

Previous studies revealed that the five Arabidopsis ethylene receptor genes have partially redundant functions and negatively regulate ethylene response. Genetic redundancy limits further

关键词：

A Study of Transmitter-on ETR1 and ERS1 Signaling Implies Differential Collaborations of Arabidopsis Ethylene Receptors

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A Study of Transmitter-on ETR1 and ERS1 Signaling Implies Di...

2010全国植物生物学研讨会

作者： qian liu chi-kuang wen national key laboratory of plant molecular genetics Institute of Plant Physiology and EcologyShanghai Institutes for Biological Sciences Chinese Academy of Sciences

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Identification and functional characterization of doublesex gene in the testis of Spodoptera litura

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Insect Science 2019年第6期26卷 1000-1010页

作者： qian Du Liang wen Si-Chun Zheng Hong-Lun Bi Yong-Ping Huang Qi-Li Feng Lin liu Guangzhou key laboratory of Insect Development Regulation and Applied Research Institute of Insect Science and Technology School of Life Sciences South China Normal University GuangzhouChina key laboratory of Insect Developmental and Evolutionary Biology Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Science Chinese Academy of Sciences ShanghaiChina

Fusion of the testis occurs in most Lepidoptera insects, including Spodoptera litura, an important polyphagous pest. Testicular fusion in S. litura is advantageous for male reproduction, and the molecular mechanism of fusion remains unknown. Doublesex influences the formation of genitalia, the behavior of courtship, and sexually dimorphic traits in fruit-fly and silkworm, and is essential for sexual differentiation. However, its purpose in the testis of S. litura remains unknown. The doublesex gene of S. litura (Sldsx) has male-specific SldsxM and female-specific SldsF isoforms, and exhibits a higher expression level in the male testis. At the testicular fusion stage (L6D6), Sldsx attained the highest expression compared to the pre-fusion and post-fusion periods. Moreover, Sldsx had a higher expression in the peritoneal sheaths of testis than that of germ cells in the follicle. CRISPR/Cas9 (Clustered Regularly Interspaced Short Palindromic Repeats/Cas9) was applied to S. litura to determine the role of Sldsx. A mixture of single guide RNA messenger RNA and Cas9 protein (300 ng/μL each) was injected into eggs within 2 h following oviposition. CRISPR/Cas9 successfully induced genomic mutagenesis of Sldsx at Go generation. The mutant males had smaller testis surrounded by less tracheae. Moreover, the mutant males had abnormal external genitalia and could not finish mating with wild-type females. Additionally, testes were fused for almost all mutant males. The results showed that Sldsx was not related to testicular fusion, and is required for both testis development and the formation and function of external genitalia in S. litura. The main roles of doublesex on the male are similar to other insects.

关键词： CRISPR/Cas9 system doublesex external genitalia Spodoptera litura testis

Phylogenomic conflict analyses in the apple genus Malus *** widespread hybridization and allopolyploidy driving diversification,with insights into the complex biogeographic history in the Northern Hemisphere

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Journal of Integrative plant Biology 2022年第5期64卷 1020-1043页

作者： Bin-Bin liu Chen Ren Myounghai Kwak Richard GJHodel Chao Xu Jian He wen-Bin Zhou chien-Hsun Huang Hong Ma Guan-Ze qian De-Yuan Hong Jun wen State key laboratory of Systematic and Evolutionary Botany Institute of Botanythe Chinese Academy of SciencesBeijing 100093China Department of Botany National Museum of Natural HistorySmithsonian InstitutionPO Box 37012Washington 20013–7012DCUSA key laboratory of plant Resources Conservation and Sustainable Utilization South China Botanical GardenThe Chinese Academy of SciencesGuangzhou 510650China Guangdong Provincial key laboratory of Applied Botany South China Botanical GardenThe Chinese Academy of SciencesGuangzhou 510650China national institute of biological Resources Incheon 22689South Korea School of ecology and Nature Conservation Beijing Forestry UniversityBeijing 100083China Department of plant and Microbial Biology North Carolina State UniversityRaleigh 27965NCUSA State key laboratory of Genetic Engineering and Collaborative Innovation Center of genetics and Development Ministry of Education Key Laboratory of Biodiversity and Ecological EngineeringInstitute of Plant BiologyCenter of Evolutionary BiologySchool of Life SciencesFudan UniversityShanghai 200433China Department of Biology Huck Institutes of the Life SciencesPennsylvania State University510D Mueller LaboratoryUniversity ParkPennsylvania 16802USA College of Life sciences Liaocheng UniversityLiaocheng 252059China

Phylogenomic evidence from an increasing number of studies has demonstrated that different data sets and analytical approaches often reconstruct strongly supported but conflicting *** this study,785 single-copy nuclear genes and 75 complete plastomes were used to infer the phylogenetic relationships and estimate the historical biogeography of the apple genus Malus sensu lato,an economically important lineage disjunctly distributed in the Northern Hemisphere and involved in known and suspected hybridization and allopolyploidy *** nuclear phylogeny recovered the monophyly of Malus s.l.(including Docynia);however,the genus was supported to be biphyletic in the plastid *** ancient chloroplast capture event in the Eocene in western North America best explains the cytonuclear *** conflict analysis demonstrated that ILS,hybridization,and allopolyploidy could explain the widespread nuclear gene tree *** deep hybridization event(Malus doumeri)and one recent event(Malus coronaria)were detected in Malus ***,our historical biogeographic analysis integrating living and fossil data supported a widespread East Asianwestern North American origin of Malus *** the Eocene,followed by several extinction and dispersal events in the Northern *** also propose a general workflow for assessing phylogenomic discordance and biogeographic analysis using deep genome skimming data sets.

关键词： deep genome skimming genomic discordance historical biogeography massive extinction reticulate evolution single-copy nuclear genes

Tasselseed5 encodes a cytochrome C oxidase that functions in sex determination by affecting jasmonate catabolism in maize^FA

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Journal of Integrative plant Biology 2020年第2期62卷 247-255页

作者： Fei Wang Zhenjiang Yuan Zhiwei Zhao Caixia Li Xin Zhang Huafeng Liang Yawen liu qian Xu Hongtao liu 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 Shanghai 200032China key laboratory of plant Stress Biology School of Life SciencesHenan UniversityKaifeng 475004China College of Agronomy Shandong Agricultural UniversityTaian 271018China

Maize(Zea mays L.)is a monoecious grass plant in which mature male and female florets form the tassel and ear,*** is often used as a model plant to study flower *** maize tassel seed mutants,such as the recessive mutants tasselseed1(ts1)and tasselseed2(ts2),exhibit a reversal in sex determination,which leads to the generation of seeds in *** phenotype of the dominant mutant,Tasselseed5(Ts5),is similar to that of ***,we positionally cloned the underlying gene of Ts5 and characterized its *** show that the GRMZM2G177668 gene is overexpressed in *** gene encodes a cytochrome C oxidase,which catalyzes the transformation of jasmonoyl-L-isoleucine(JA-Ile)to 12 OH-JA-Ile during jasmonic acid *** with this finding,no JA-Ile peak was detected in Ts5 tassels during the sex determination period,unlike in the wild *** maize plants overexpressing GRMZM2G177668 exhibited a tassel-seed phenotype similar to that of *** results indicate that the JA-Ile peak in tassels is critical for sex determination and that the Ts5 mutant phenotype results from the disruption of this peak in tassels during sex determination.

关键词： Tasselseed5 sex determination affecting jasmonate catabolism