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Antioxidant lignans sesamin and sesamolin in sesame(Sesamum indicum L.):a comprehensive review and future prospects

Journal of Integrative Agriculture 2023年第1期22卷 14-30页

作者： Senouwa Segla Koffi DOSSOU XU Fang-tao komivi dossa ZHOU Rong ZHAO Ying-zhong WANG Lin-hai Oil Crops Research Institute Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhan 430062P.R.China Laboratory of Plant Biotechnology and Physiology University of LoméLome 01 BP 1515Togo French Agricultural Research Center for International Development(CIRAD) Genetic Improvement and Adaptation of Mediterranean and Tropical Plants-UMR AGAP InstituteMontpellier F-34398France UMR AGAP Institute University of MontpellierCIRADFrench National Research Institute for AgricultureFood and Environment(INRAE)Montpellier F-34398France

Sesame(Sesamum indicum L.)is a significantly lucrative cash crop for millions of small-holder *** seeds are an important source of a highly appreciated vegetable oil globally and two clinically essential antioxidant lignans,sesamin and ***,many countries import millions of tons of sesame seed every *** demand for lignan-rich sesame seeds has been increasing in recent years due to the continuous discovery of several pharmacological attributes of sesamin and *** meet this demand,the sesame breeder’s primary objective is to release sesame cultivars that are enriched in oil and ***,it is necessary to summarize the information related to the sesamin and sesamolin contents in sesame in order to promote the joint efforts of specialized research teams on this important oilseed *** this article,we present the current knowledge on the sesamin and sesamolin contents in *** *** respect to the updated biosynthesis pathway,associated markers,governing loci,available variability in sesame germplasm,the in planta potential roles of these compounds in sesame,and the newly discovered pharmacological *** addition,we propose and discuss some required studies that might facilitate genomics-assisted breeding of high lignan content sesame varieties.

关键词： Sesamum indicum lignan biosynthesis antioxidants molecular breeding sesamin and sesamolin

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Large scale genetic landscape and population structure of Ethiopian sesame (Sesamum indicum L.) germplasm revealed through molecular marker analysis

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Oil Crop Science 2023年第4期8卷 266-277页

作者： Muez Berhe Jun You komivi dossa Fetien Abay Abera Emmanuel Amponsah Adjei Yanxin Zhang Linhai Wang Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences Key Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agricultureand Rural AfairsNo.2 Xudong 2nd RoadWuhan430062China Tigray Agricultural Research Institute Humera Agricultural Research CenterP.O.Box 62TigrayEthiopia CIRAD UMR AGAP Institut97170 Petit BourgGuadeloupeFrance Department of Dryland Crop and Horticultural Sciences College of Dryland Agriculture and Natural ResourcesMekelle UniversityMekelleTigrayEthiopia University of California Davis Department of Plant Sciences MS/11 Shields AveDavisCA95616USA CSIR-Savanna Agriculture Research Institute P.O.Box TL52TamaleGhana UMR AGAP Institut Univ MontpellierCIRADINRAEInstitut AgroF-34398 MontpellierFrance

Sesame(Sesamum indicum L.) plays a crucial role in Ethiopian agriculture,serving both subsistence and commercial ***,our understanding of the extensive genetic diversity and population structure of Ethiopian sesame remains *** address this knowledge gap,we genotyped 368 Ethiopian sesame germplasms,categorizing into four distinct breeding groups:Accessions,landraces,improved varieties,and wild types,using a comprehensive set of 28 polymorphic markers,including 23 simple sequence repeat(SSR) and five Insertion-Deletion(InDel) *** markers ensured robust genomic representation,with at least two markers per linkage *** results unveiled substantial genetic diversity,identifying a total of 535 alleles across all *** average,each locus displayed 8.83 alleles,with observed and expected heterozygosity values of 0.30 and 0.36,*** Diversity and Polymorphic Information Content(PIC) were recorded at 0.37 and *** percentage of polymorphic loci varied significantly among breeding groups,ranging from8.00% to 82.40%,indicating high diversity in accessions(82.4%),moderate diversity in improved varieties(31.20%) and landraces(29.60%),and limited diversity in wild types(8.00).Analysis of Molecular Variance(AMOVA) results emphasized significant genetic differentiation among populations,with substantial diversity(P<0.001) within each *** 8% of the entire genetic diversity could be attributed to distinctions among populations,while the larger proportion of genetic diversity(92%) resided within each individual sesame population,showcasing heightened diversity within each *** study’s findings received support from both Bayesian clustering and Neighbor-joining(NJ) analysis,reaffirming the credibility of our genetic structure ***,Population structure analysis at its highest Δk value(k=2) revealed the existence of two primary genetic clusters,further subdivided into four sub-populations at k

关键词： Alleles Conservation Genetic diversity Molecular markers Population structure

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First Report of a Successful Development of Yam Hybrids(Dioscorea alata L.)from Lyophilized and Long-Term Stored Pollens

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Phyton-International Journal of Experimental Botany 2023年第10期92卷 2861-2874页

作者： Erick Malédon Elie Nudol Christophe Perrot Marie-Claire Gravillon Ronan Rivallan Denis Cornet Hâna Chair komivi dossa CIRAD UMR AGAP InstitutPetit BourgGuadeloupe97170France UMR AGAP Institut Univ MontpellierCIRADINRAEInstitut AgroMontpellierF-34398France CIRAD UMR AGAP InstitutMontpellierF-34398France

Various biological constraints including erratic and asynchronous flowering between male and female plants hinder successful hybrid development and genetic gains in greater yam breeding ***,pollen storage has gained much attention to facilitate artificial pollinations and increase the genetic *** 4-year study aimed at developing a practical long-term pollen storage technique for the successful development of yam *** pollens were collected from two Dioscorea alata males,then lyophilized(two lyophilization treatments were applied),followed by storage at room temperature(24℃–25℃)for 12 ***,the lyophilized and stored pollens were tested for viability by crossing with four female *** results showed that lyophilization is effective for achieving viable pollens after 12 months of *** 1(48 h drying)showed higher pollen germination and fertility rates than Treatment 2(72 h drying).Although we observed a reduction in viability of lyophilized pollens after 12 months of storage,we generated hybrid seedlings with success rates from 12%to 21%compared to 21%–31%when using fresh *** testing based on molecular genotyping confirmed the hybrid status of the obtained seedlings,which grew well in a *** is a practical approach for a long-term storage of greater yam pollen *** protocol will positively impact yam breeding programs particularly in developing countries.

关键词： Yam freeze-drying pollen conservation genetic gain

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Near-infrared reflectance spectroscopy reveals wide variation in major components of sesame seeds from Africa and Asia

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The Crop Journal 2018年第2期6卷 202-206页

作者： komivi dossa Xin Wei Marème Niang Pan Liu Yanxin Zhang Linhai Wang Boshou Liao Ndiaga Cissé Xiurong Zhang Diaga Diouf Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences Key Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of AgricultureWuhan 430062HubeiChina Centre d'Etudes Régional pour l'Amélioration de l'Adaptationàla Sécheresse(CERAAS) BP 3320 Route de KhomboleThièsSénégal Laboratoire Campus de Biotechnologies Végétales Département de Biologie VégétaleFacultédes Sciences et TechniquesUniversité Cheikh Anta DiopBP 5005 Dakar-FannDakar 107000Sénégal

Sesame is an important oilseed crop in Africa and Asia, owing to its high nutritional quality seed and market value. Variation in sesame seed components including oil, oleic acid,linoleic acid, and protein was investigated by near-infrared reflectance spectrometry in 139 samples collected from different countries. Oil and protein contents were between 40.8%and 60.3%(mean 53.0%) and 15.5% to 25.5%(mean 20.4%), respectively. Linoleic acid,ranging from 31.8% to 52.4%(mean 46%) was more abundant than oleic acid(31.8%–50.6%,mean 38.1%). Light-seeded samples displayed higher nutritional quality, as they were richer in oil, protein, and linoleic acid than dark seeds. Samples from Africa had higher oil and linoleic acid contents, while Asian samples had higher oleic content. The analysis revealed West African sesame cultivars containing especially high levels of seed components, which may command high market values. Two clusters of sesame samples grouped by seed composition were obtained, including one cluster with high oil and oleic acid content and the other with high protein and linoleic acid content. This study revealed that sesame samples from Africa and Asia harbor high variation for major seed components and also provided background information for breeding high-nutrition varieties according to the demands of sesame seed markets.

关键词： Sesamum indicum Major seed components Variation Asia Africa NIRS

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Biochemical and physio-morphological indices for sesame drought resistance germplasm selection

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Oil Crop Science 2018年第2期3卷 99-110页

作者： Donghua Li komivi dossa Yanxin Zhang Lei Wang Xiaofeng Zhu Linhai Wang Xiurong Zhang Key Laboratory of Biology and Genetic Improvement of Oil Crops Ministry of AgricultureOil Crops Research InstituteChinese Academy of Agricultural Sciences

In order to efficiently screen drought resistant varieties from a large scale of sesame germplasm, key traits were identified in this study. Six varieties with different drought resistance levels were submitted to a repeated drought stress experiment followed by rehydration phases at seedling stage. Results revealed that ‘ZZM5396', ‘ZZM1446' and‘ZZM0635' showed highest drought resistance features by phenotypic, physiological and biochemical detection. Peroxidase(POD) and catalase(CAT) activities, photosynthetic rate(Photo), root and stem dry matters are indices for drought resistance screening in *** results from seedling stage were consistent with that from germination stage, despite the fact that ‘ZZM1446' appeared to be superior under drought at seedling stage. The identified genotypes may be useful for breeding towards drought resistance and relevant molecular analysis in sesame.

关键词： sesame drought stress physiology antioxidant drought indices

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GWAS UNCOVER DIFFERENTIAL GENETIC ARCHITECTURES FOR DROUGHT AND SALT TOLERANCES IN SESAME(SESAMUM INDICUM L.)

GWAS UNCOVER DIFFERENTIAL GENETIC ARCHITECTURES FOR DROUGHT ...

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2017年中国作物学会学术年会

作者： Donghua Li komivi dossa Linhai Wang Yanxin Zhang Xin Wei Xiurong Zhang Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences Key Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture

Sesame has a great potential as an industrial crop but its production is challenged by drought and salt stresses in the arid and semi-arid *** uncover the genetic variants leading to salinity and drought tolerances at the germination stage,genome-wide association studies(GWAS) of 4 stress tolerance indexes related to NaCl-salt and polyethylene glycol(PEG)-drought induced stresses were conducted using 1,000 K single nucleotide polymorphism data and a diversity panel of 490 sesame *** extensive phenotypic variation was observed for drought and salt tolerance indexes in the population and most of the genotypes were moderately tolerant to both *** demonstrated that sesame genotypes respond differentially to drought and salt stresses.A total of 132 and 120 significant SNPs resolved to 9 and 15 QTLs were detected for drought and salt stresses,*** the drought tolerance indexes,2 common QTLs regions were found located on LG1 and LG7,led by the SNPs SNP1657071 and SNP10174187,***,no common QTLs were identified for the two salt tolerance *** addition,only 2 common QTLs for drought and salt tolerances were found located on LG5 and LG7,*** indicates that the genetic architectures for drought and salt tolerances in sesame are quite different.A total of 13 and 27 candidate genes were uncovered for drought and salt tolerances,*** of their homologs in Arabidopsis and GO analysis further confirmed their implications in abiotic stress *** SNPs and candidate genes detected in this study could assist in marker assisted selection towards the improvement of sesame cultivars for drought and salt tolerances.

关键词： Sesamum indicum drought stress salt stress GWAS genetic variants candidate genes

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Genome-wide association studies of 39 seed yield-related traits in sesame(Sesamum indicum L.)

Genome-wide association studies of 39 seed yield-related tra...

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中国作物学会油料作物专业委员会第八次会员代表大会暨学术年会

作者： ZHOU Rong komivi dossa YU Jing-yin WANG Lin-hai WEI Xin ZHANG Xiu-rong Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences Key Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture College of Life and Environmental Sciences Shanghai Normal University

Sesame is poised to become a major oilseed crop owing to its high oil quality and its adaptation to various ecological ***,seed yields in different growing areas are low and genetic basis of seed yield-related traits in sesame is still ***,we investigated 39 seed yield-related traits categorized into 5 major group,in 3 different environments of China using 705 diverse *** on 1.8 M SNPs dataset,genome wide association study was performed to unravel genetic variants and candidate genes associated with seed yield in *** variation was observed for capsule size,capsule number together with seed size related traits,was found to be highly correlated with seed yield *** total,646 SNPs were declared significantly associated with39 traits(p <10) resolved to 547 *** 6 multi-environment QTLs and 76 pleiotropic QTLs associated with 2 to 5 diverse traits were ***,traits belonging to the same group shared similar genetic *** analyzing candidate genes for the assayed traits,48 potential genes containing significant functional SNPs were *** homologs of these candidate genes in Arabidopsis are described as involved in seed or biomass *** novel candidate genes such as SiLPT3,SiAC8 which may control capsule length and capsule number traits were also ***,this study provided the basis for research on genetics and functional genomics towards seed yield improvement in sesame.

关键词： sesame genome-wide association study yield QTL SNP candidate gene

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Genome-wide identification and expression analyses of genes involved in raffinose accumulation in sesame

Genome-wide identification and expression analyses of genes ...

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2017年中国作物学会学术年会

作者： Jun You Yanyan Wang Yujuan Zhang komivi dossa Donghua Li Rong Zhou Linhai Wang Xiurong Zhang Key Laboratory of Biology and Genetic Improvement of Oil Crops Ministry of AgricultureOil Crops Research InstituteChinese Academy of Agricultural Sciences

Sesame(Sesamum indicum L.) is an important oilseed ***,extreme climate and multiple abiotic stresses severely affect sesame growth and ***,it is extremely important to identify some candidate genes involved in abiotic stress resistance in *** family oligosaccharides(RFOs),such as raffinose and stachyose,which accumulate during seed development and plant exposed to abiotic stresses,play an important role in desiccation tolerance of plants and developing *** the present study,three types of key enzymes,galactinol synthase(GolS),raffinose synthase(RafS) and stachyose synthase(StaS),responsible for the biosynthesis of RFOs were identified at the genome-wide scale in sesame.A total of 7 SiGolS and 15 SiRS genes were identified in the sesame genome,and could be divided into 5 and 6 subfamilies,*** analyses showed that SiGolS and SiRS genes exhibited different expression profiles in different tissues and seed developmental *** expression profiles analyses under various abiotic stresses indicated that most of SiGolS and SiRS genes were significantly regulated by drought,osmotic,salt and waterlogging stresses,but slightly affected by cold *** up-regulation of several SiGolS and SiRS genes by multiple abiotic stresses suggested their active implication in sesame abiotic stress *** together,these results shed light on the RFOs-mediated abiotic stress resistance in sesame and provide useful framework for improving abiotic stress resistance of sesame through genetic engineering.

关键词： Sesame Oligosaccharides Raffinose Galactinol synthase Raffinose synthase Abiotic stress Expression profiles

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Identification and characterization of bZIP transcription factor family in sesame

Identification and characterization of bZIP transcription fa...

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中国作物学会油料作物专业委员会第八次会员代表大会暨学术年会

作者： WANG Yan-yan ZHANG Yu-juan ZHOU Rong komivi dossa YU Jing-yin LI Dong-hua LIU Ai-li Marie Ali Mmadi ZHANG Xiu-rong YOU Jun Key Laboratory of Biology and Genetic Improvement of Oil Crops Ministry of AgricultureOil Crops Research InstituteChinese Academy of Agricultural Sciences Cotton Research Center Cotton Research CenterShandong Academy of Agricultural SciencesHuanghuaihai Key Laboratory of Cotton Genetic Improvement and Cultivation Physiology of the Ministry of Agriculture

Basic leucine zipper(bZIP) gene family is one of the largest transcription factor families in *** of this family play important roles in multiple biological processes such as light signaling,seed maturation,flower development as well as abiotic and biotic stress ***,genome-wide comprehensive analysis of bZIP family is lacking in *** present study,63 bZIP genes distributed on 14 linkage groups were identified in sesame,and denominated as ***,all members of SibZIP family were divided into 9 groups based on phylogenetic relationship of Arabidopsis bZIPs,which was further supported by analysis of conserved motifs and gene *** analysis showed that all SibZIP genes harbor cis-elements related to stress responsiveness in their promoter *** analyses of SibZIP genes based on transcriptome data showed that these genes have different expression patterns in different ***,we showed that a majority of SibZIPs(85.71%) exhibited significant transcriptional changes in responses to abiotic stresses,including drought,waterlogging,osmotic,salt,and cold,suggesting that SibZIPs may play a cardinal role in regulation of stress responses of ***,these results provide new insights into stress-responsive SibZIP genes and pave the way for future studies of SibZIPs mediated abiotic stress response in sesame.

关键词： sesame transcription factors bZIP abiotic stress gene expression

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Resistance to Beta Lactam Antibiotics of <i>Pseudomonas aeruginosa</i>Isolated in Community Infections within HIV Infected Persons in Lomé-Togo

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World Journal of AIDS 2014年第1期4卷 81-84页

作者： Majesté Ihou Wateba Kanyni Ekoue-Kouvahey Abago Balaka komivi Tsatsu Ousseni Tidjani Department of Infectious Diseases and Pneumology CHU Sylvanus Olympio Lomé Togo Department of Internal Medicine CHU Sylvanus Olympio Lomé Togo Medical Center of NGO VISA Lomé Togo

Objective: Describe resistance to beta lactam antibiotics of Pseudomonas aeruginosa in community infection within HIV-1 infected persons. Methods: We have studied prospectively from June 15th to December 31st 2013 inthe Clinic Hotel-Dieu and NGO VISA of Lomé, adult HIV-1 infected patients under anti retroviral therapy combining tenofovir, lamivudine and efavirenz for at least one year. The technique of agar diffusion susceptibility using discs of Ticarcillin + clavulanic acid is used to study the β-lactamase production. The diagnosis of species was performed by the chloroform test and the test for sensitivity to kanamycin and colistin. Results: Thirty five strains of Pseudomonas aeruginosa were obtained. The T-lymphocytes CD4 mediane was 575 cells/mm3 of blood. Urine represented 15 cases, skin abscesses 11 cases, externa suppurate otitis 7 cases and vaginal swab for 2 cases. The phenotypes were: wild phenotypes 23 cases (65.7%), resistant phenotypes 12 cases. Among resistant phenotypes, 4 were complex phenotype;5 were ESBL phenotypes;2 were hyper productive cephalosporinases phenotypes and 1 was a specific phenotype with impermeability to imipenem. Conclusion: The acquisition of resistance of Pseudomonas aeruginosa to beta lactam antibiotics in community infections among HIV-1 infected person incentives controls and promotes the rational use of antibiotics.

关键词： HIV-1 Pseudomonas aeruginosa Resistance Phenotypes Beta Lactam Antibiotic

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