Rice cooking and eating qualities(CEQ)are mainly determined by cooked rice textural parameters and starch physicochemical properties.However,the genetic bases of grain texture and starch properties in rice have not be...Rice cooking and eating qualities(CEQ)are mainly determined by cooked rice textural parameters and starch physicochemical properties.However,the genetic bases of grain texture and starch properties in rice have not been fully understood.We conducted a genome-wide association study for apparent amylose content(AAC),starch pasting viscosities,and cooked rice textural parameters using 279 indica rice accessions from the 3000 Rice Genome Project.We identified 26 QTLs in the whole population and detected single nucleotide polymorphisms(SNPs)with the lowest P-value at the Waxy(Wx)locus for all traits except pasting temperature and cohesiveness.Additionally,we detected significant SNPs at the SUBSTANDARD STARCH GRAIN6(SSG6)locus for AAC,setback(SB),hardness,adhesiveness,chewiness(CHEW),gumminess(GUM),and resilience.We subsequently divided the population using a SNP adjacent to the Waxy locus,and identified 23 QTLs and 12 QTLs in two sub-panels,WxT and WxA,respectively.In these sub-panels,SSG6 was also identified to be associated with pasting parameters,including peak viscosity,hot paste viscosity,cold paste viscosity,and consistency viscosity.Furthermore,a candidate gene encoding monosaccharide transporter 5(OsMST5)was identified to be associated with AAC,breakdown,SB,CHEW,and GUM.In total,39 QTLs were co-localized with known genes or previously reported QTLs.These identified genes and QTLs provide valuable information for genetic manipulation to improve rice CEQ.展开更多
目的探讨治疗痉挛型脑瘫有效中药的用药规律。方法检索中国知网、万方、维普、Pubmed、Web of science、Co-chrane library数据库中药治疗痉挛型脑瘫的文献,采用EXCEL表格分析中医证候,药物的服用方法,药物的频次、四气五味及归经,观察...目的探讨治疗痉挛型脑瘫有效中药的用药规律。方法检索中国知网、万方、维普、Pubmed、Web of science、Co-chrane library数据库中药治疗痉挛型脑瘫的文献,采用EXCEL表格分析中医证候,药物的服用方法,药物的频次、四气五味及归经,观察的指标;SPSS Modeler18.0软件进行组方规律分析、SPSS Statistics 24进行药物的因子分析和聚类分析探讨痉挛型脑瘫的药物运用规律。结果痉挛型脑瘫虚证为肝脾肾、气血虚,实证为肝风、瘀血、气滞;用药频数前4位:伸筋草、当归、牛膝、红花,用药性温,味为甘、辛、苦,归肝、肾、脾经,补虚药、祛风湿药最多。关联分析中透骨草-木瓜、鸡血藤、牛膝组合支持度、置信度最高。核心用药透骨草、牛膝、伸筋草、鸡血藤。提取6个公因子。聚类分析得出当归、赤芍、杜仲、木瓜、川芎、甘草、黄芪;红花、白芍、鸡血藤、伸筋草、透骨草、牛膝、桂枝、丹参、桑枝、艾叶两个方子。中药主要以外用熏蒸为主,主要改善肌张力及运动功能。结论痉挛型脑瘫病机为肝脾肾气血虚兼肝风内动,气滞血瘀;治疗以补益肝肾、健脾胃,益气补血扶助正气,以祛风活血通络祛邪。展开更多
目的:利用网络药理学方法从整体观念探讨中药复方伸膝汤治疗膝关节骨性关节炎(Knee Osteoarthritis,KOA)的作用机制。方法:通过BATMAN-TCM数据库,对伸膝汤所含活性成分进行筛选并预测作用靶点,利用GeneCards、OMIM和CTD数据库检索KOA相...目的:利用网络药理学方法从整体观念探讨中药复方伸膝汤治疗膝关节骨性关节炎(Knee Osteoarthritis,KOA)的作用机制。方法:通过BATMAN-TCM数据库,对伸膝汤所含活性成分进行筛选并预测作用靶点,利用GeneCards、OMIM和CTD数据库检索KOA相关基因,利用韦恩图筛选伸膝汤中活性成分治疗KOA的作用靶点。利用Cytoscape软件构建活性成分-作用靶点网络图。利用String数据库绘制伸膝汤蛋白互作网络,分析计算出最重要的5个蛋白。利用Metascape数据库对靶点进行基因本体(Gene Ontology,GO)及京都基因与基因组百科全书(Kyoto Encyclopedia of Genes and Genomes,KEGG)富集分析。结果:伸膝汤所含8味中药共筛选出184种活性成分,涉及1491个靶点基因,其中有710个基因与KOA相关。网络分析结果表明,伸膝汤治疗KOA涉及的生物学过程主要包括毒性反应、细胞外刺激反应、激素水平调节等;涉及的分子功能主要包括辅因子结合、羧酸结合、维生素结合等。其作用机制可能与HIF-1信号通路、PI3K-AKT信号通路、cAMP信号通路、钙离子信号通路、TNF信号通路、碳代谢、凋亡、流体剪切应力与动脉粥样硬化、非酒精性脂肪肝等信号通路有关。结论:本研究初步揭示了伸膝汤多靶点整体调节KOA的作用特点,为进一步开展此方治疗KOA作用机制的研究提供了新的思路和方法。展开更多
基金financially supported by the National Natural Science Foundation of China(Grant No.U20A2032)the Agro ST Project(Grant No.NK2022050102)the Hainan Provincial Natural Science Foundation,China(Grant No.323MS066)。
文摘Rice cooking and eating qualities(CEQ)are mainly determined by cooked rice textural parameters and starch physicochemical properties.However,the genetic bases of grain texture and starch properties in rice have not been fully understood.We conducted a genome-wide association study for apparent amylose content(AAC),starch pasting viscosities,and cooked rice textural parameters using 279 indica rice accessions from the 3000 Rice Genome Project.We identified 26 QTLs in the whole population and detected single nucleotide polymorphisms(SNPs)with the lowest P-value at the Waxy(Wx)locus for all traits except pasting temperature and cohesiveness.Additionally,we detected significant SNPs at the SUBSTANDARD STARCH GRAIN6(SSG6)locus for AAC,setback(SB),hardness,adhesiveness,chewiness(CHEW),gumminess(GUM),and resilience.We subsequently divided the population using a SNP adjacent to the Waxy locus,and identified 23 QTLs and 12 QTLs in two sub-panels,WxT and WxA,respectively.In these sub-panels,SSG6 was also identified to be associated with pasting parameters,including peak viscosity,hot paste viscosity,cold paste viscosity,and consistency viscosity.Furthermore,a candidate gene encoding monosaccharide transporter 5(OsMST5)was identified to be associated with AAC,breakdown,SB,CHEW,and GUM.In total,39 QTLs were co-localized with known genes or previously reported QTLs.These identified genes and QTLs provide valuable information for genetic manipulation to improve rice CEQ.
文摘目的:利用网络药理学方法从整体观念探讨中药复方伸膝汤治疗膝关节骨性关节炎(Knee Osteoarthritis,KOA)的作用机制。方法:通过BATMAN-TCM数据库,对伸膝汤所含活性成分进行筛选并预测作用靶点,利用GeneCards、OMIM和CTD数据库检索KOA相关基因,利用韦恩图筛选伸膝汤中活性成分治疗KOA的作用靶点。利用Cytoscape软件构建活性成分-作用靶点网络图。利用String数据库绘制伸膝汤蛋白互作网络,分析计算出最重要的5个蛋白。利用Metascape数据库对靶点进行基因本体(Gene Ontology,GO)及京都基因与基因组百科全书(Kyoto Encyclopedia of Genes and Genomes,KEGG)富集分析。结果:伸膝汤所含8味中药共筛选出184种活性成分,涉及1491个靶点基因,其中有710个基因与KOA相关。网络分析结果表明,伸膝汤治疗KOA涉及的生物学过程主要包括毒性反应、细胞外刺激反应、激素水平调节等;涉及的分子功能主要包括辅因子结合、羧酸结合、维生素结合等。其作用机制可能与HIF-1信号通路、PI3K-AKT信号通路、cAMP信号通路、钙离子信号通路、TNF信号通路、碳代谢、凋亡、流体剪切应力与动脉粥样硬化、非酒精性脂肪肝等信号通路有关。结论:本研究初步揭示了伸膝汤多靶点整体调节KOA的作用特点,为进一步开展此方治疗KOA作用机制的研究提供了新的思路和方法。
