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Recent Advances in Cuticular Wax Biosynthesis and Its Regulation in Arabidopsis

Molecular Plant 2013年第2期6卷 246-249页

作者： saet buyl lee Mi Chung Suh Department of Bioenergy Science and Technology Chonnam National University Gwangju Korea

The aerial parts of land plants are covered with cuticu- lar waxes that limit non-stomatal water loss and gaseous exchanges, and protect plants from ultraviolet radiation and pathogen attacks. They are composed of very-long-chain fatty acids （VLCFAs; C20 to C34） in addition to their deriva-tives, aldehydes, alkanes, primary and secondary alcohols, and wax esters. Due to their physical properties, such as solid-ity at room temperature and a translucency ranging from transparent to opaque, plant waxes have been used as raw materials in the production of cosmetics, detergents, plas-tics, soaps, paints, drugs, lubricants, and high-value renew-able fuels. Many genes involved in cuticular wax biosynthesis and export have been characterized by forward and reverse genetic approaches as well as by stem epidermis transcrip-tome analysis. The regulatory mechanisms of cuticular wax biosynthesis have been reported at the transcriptional, post- transcriptional, and translational levels. Recent advances in cuticular wax biosynthesis and its regulation are reviewed in this paper.

关键词： TRANSCRIPTION FACTOR EXPORT COMPONENTS PROTEIN LIPIDS

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Gene editing of authentic Brassica rapa flavonol synthase 1 generates dihydroflavonol-accumulating Chinese cabbage

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Horticulture Research 2023年第12期10卷 58-69页

作者： Sangkyu Park Hyo lee Jaeeun Song Chan Ju Lim Jinpyo Oh Sang Hoon lee saet buyl lee Jong-Yeol lee Sunhyung Lim Jin A.Kim Beom-Gi Kim Metabolic Engineering Division National Institute of Agricultural SciencesRural Development AdministrationJeonju54874South Korea Institute of Biotechnology and Breeding Asiaseed Inc.Icheon17414South Korea Food and Nutrition Division National Institute of Agricultural SciencesRural Development AdministrationWanju55365South Korea Department of Horticultural Biotechnology School of BiotechnologyHankyong National UniversityAnseong17579South Korea

Flavonols are the major class of flavonoids of green Chinese cabbage(Brassica rapa ***).The *** genome harbors seven flavonol synthase genes(BrFLSs),but they have not been functionally ***,transcriptome analysis showed four BrFLSs mainly expressed in Chinese *** them,only BrFLS1 showed major FLS activity and additional flavanone 3β-hydroxylase(F3H)activity,while BrFLS2 and BrFLS3.1 exhibited only marginal F3H *** generated BrFLS1-knockout(BrFLS1-KO)Chinese cabbages using CRISPR/Cas9-mediated genome editing and obtained transgene-free homozygous plants without off-target mutation in the T1 generation,which were further advanced to the T2 generation showing normal ***-ESI-QTOF-MS analysis revealed that flavonol glycosides were dramatically decreased in the T2 plants,while dihydroflavonol glycosides accumulated concomitantly to levels corresponding to the reduced levels of *** PCR analysis revealed that the early steps of phenylpropanoid and flavonoid biosynthetic pathway were upregulated in the BrFLS1-KO *** accordance,total phenolic contents were slightly enhanced in the BrFLS1-KO plants,which suggests a negative role of flavonols in phenylpropanoid and flavonoid biosynthesis in Chinese *** surveys revealed that the BrFLS1-KO Chinese cabbages showed normal head formation and reproductive phenotypes,but subtle morphological changes in their heads were *** addition,their seedlings were susceptible to osmotic stress compared to the controls,suggesting that flavonols play a positive role for osmotic stress tolerance in *** *** this study,we showed that CRISPR/Cas9-mediated BrFLS1-KO successfully generated a valuable breeding resource of Chinese cabbage with distinctive metabolic traits and that CRISPR/Cas9 can be efficiently applied in functional Chinese cabbage breeding.

关键词： steps slightly phenolic

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基于辣椒基因组测序探究辣味在种群中的进化

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辣椒杂志 2014年第2期12卷 40-50页

作者： Seungill Kim Minkyu Park Seon-In Yeom Yong-Min Kim Je Min lee Hyun-Ah lee Eunyoung Seo Jaeyoung Choi Kyeongchae Cheong Ki-Tae Kim Kyongyong Jung Gir-Won lee Sang-Keun Oh Chungyun Bae saet-Byul Kim Hye-Young lee Shin-Young Kim Myung-Shin Kim Byoung-Cheorl Kang Yeong Deuk Jo Hee-Bum Yang Hee-Jin Jeong Won-Hee Kang Jin-Kyung Kwon Chanseok Shin Jae Yun Lim June Hyun Park Jin Hoe Huh June-Sik Kim Byung-Dong Kim Oded Cohen Ilan Paran Mi Chung Suh saet buyl lee Yeon-Ki Kim Younhee Shin Seung-Jae Noh Junhyung Park Young Sam Seo Suk-Yoon Kwon Hyun A Kim Jeong Mee Park Hyun-Jin Kim Sang-Bong Choi Paul W Bosland Gregory Reeves Sung-Hwan Jo Bong-Woo lee Hyung-Taeg Cho Hee-Seung Choi Min-Soo lee Yeisoo Yu Yang Do Choi Beom-Seok Park Allen van Deynze Hamid Ashrafi Theresa Hill Woo Taek Kim Hyun-Sook Pai Hee Kyung Ahn Inhwa Yeam James J Giovannoni Jocelyn K C Rose Iben Sφrensen Sang-Jik lee Ryan W Kim Ik-Young Choi Beom-Soon Choi Jong-Sung Lim Yong-Hwan lee Doil Choi 刘峰张西露 Department of Plant Science Seoul National University Plant Genomics and Breeding Institute Seoul National University Department of Agricultural Biotechnology Seoul National University Department of Bioinformatics and Life Science Soongsil University Vegetable Breeding Research Center Seoul National University Agricultural Research Organization Institute of Plant Science Volcani Center Bet DaganIsrael. Agricultural Research Organization Institute of Plant Science Volcani Center Bet DaganIsrael Department of Bioenergy Science and Technology Chonnam National University Genomics Genetics Institute GreenGene BioTech Inc. Codes Division Insilicogen Inc. Ginseng Resources Research Laboratory Korea Ginseng Corporation Korea Research Institute of Bioscience and Biotechnology Division of Bioscience and Bioinformatics Myongji University Department of Plant and Environmental Sciences New Mexico State University Chile Pepper Institute New Mexico State University Seeders Inc. Department of Biological Sciences Seoul National University Arizona Genomics Institute University of Arizona Agricultural Genome Center National Academy of Agricultural Science Rural Development Administration Seed Biotechnology Center University of California Davis Davis California USA Department of Systems Biology Yonsei University Department of Horticulture and Breeding Andong National University US Department of Agriculture-Agricultural Research Service Robert W. Holley Center Ithaca New York USA Boyce Thompson Institute for Plant Research Cornell University Ithaca New York USA Department of Plant Biology Cornell University Ithaca New York USA Biotechnology Institute Nongwoo Bio Yeoju Korea Genome Center University of California Davis Davis California USA National Instrumentation Center for Environmental Management Seoul National University Seoul Korea 湖南省蔬菜研究所

辣椒(Capsicum annuum)是美洲最古老的驯化作物之一,在全世界被广泛种植。本研究对CM334(墨西哥地方品种)进行了全基因组测序和组装(覆盖度为186.6×),同时还对另外两个栽培种和一个野生种分别进行了重测序和从头(de novo)测序。结果表... 详细信息

辣椒(Capsicum annuum)是美洲最古老的驯化作物之一,在全世界被广泛种植。本研究对CM334(墨西哥地方品种)进行了全基因组测序和组装(覆盖度为186.6×),同时还对另外两个栽培种和一个野生种分别进行了重测序和从头(de novo)测序。结果表明辣椒基因组大小约为番茄的4倍,辣椒基因组上存在大量gypsy转座子和花椰菜病毒家族元件的积累。结合转录组综合分析认为,辣椒素合成酶基因表达模式的改变及新功能化是导致辣椒素生物合成的原因,研究还发现辣椒与番茄在乙烯合成及果实成熟调控方面存在明显不同的分子模式。辣椒参考基因组的发布为辣椒营养品质和药用价值的改善提供了重要平台。

关键词：基因组测序辣椒素参考基因 Capsicum 转座子辣椒果实分子模式生物合成基因表达模式基因组大小

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