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| 1 | Genome-wide association with transcriptomics reveals a shade-tolerance gene network in soybean显示文摘Shade tolerance is essential for soybeans in inter/relay cropping systems.A genome-wide association study(GWAS)integrated with transcriptome sequencing was performed to identify genes and construct a genetic network governing the trait in a set of recombinant inbred lines derived from two soybean parents with contrasting shade tolerance.An improved GWAS procedure,restricted two-stage multi-locus genome-wide association study based on gene/allele sequence markers(GASM-RTM-GWAS),identified 140 genes and their alleles associated with shade-tolerance index(STI),146 with relative pith cell length(RCL),and nine with both.Annotation of these genes by biological categories allowed the construction of a protein–protein interaction network by 187 genes,of which half were differentially expressed under shading and non-shading conditions as well as at different growth stages.From the identified genes,three ones jointly identified for both traits by both GWAS and transcriptome and two genes with maximum links were chosen as beginners for entrance into the network.Altogether,both STI and RCL gene systems worked for shade-tolerance with genes interacted each other,this confirmed that shadetolerance is regulated by more than single group of interacted genes,involving multiple biological functions as a gene network. | Yanzhu Su Xiaoshuai Hao Weiying Zeng Zhenguang Lai Yongpeng Pan Can Wang Pengfei Guo Zhipeng Zhang Jianbo He Guangnan Xing Wubin Wang Jiaoping Zhang Zudong Sun Junyi Gai | 2024 | The Crop Journal2024，12，1： | 0 |
| 2 | miR-137通过调控血红素铁输出蛋白FLVCR、BCRP对大鼠I/R损伤的保护作用显示文摘目的探讨大鼠脑缺血/再灌注(I/R)后血红素铁输出蛋白猫白血病病毒C亚组受体(FLVCR)、乳腺癌抗性蛋白(BCRP)的表达变化及miR-137对其表达的调控作用。方法选取SD大鼠60只,随机分为假手术(SO)组、模型(MCAO/R)组、miR-137模拟物(Mimic)组、miR-137模拟对照(Mimic对照)组、miR-137抑制物(Inhibitor)组、miR-137抑制对照(Inhibitor对照)组,每组10只。采用线栓法制作大鼠脑缺血再灌注(MCAO/R)模型,分别于再灌注后12、24 h取材。通过qRT-PCR测定大鼠脑组织FLVCR、BCRP及miR-137的mRNA表达,免疫组化检测FLVCR、BCRP蛋白的表达水平。结果MCAO/R组大鼠神经功能缺损评分显著升高(P<0.01),Mimic组评分显著下降(P<0.01),Inhibitor组评分显著升高(P<0.05)。MCAO/R组miR-137 mRNA表达水平显著降低(P<0.05),与Mimic对照组同时间比较,Mimic组miR-137 mRNA表达水平显著升高(P<0.01),且24 h升高更显著(P<0.05);与Inhibitor对照组同时间比较,Inhibitor组miR-137 mRNA表达水平显著降低(P<0.05),且24 h降低更显著(P<0.05)。与SO组比较,MCAO/R组FLVCR mRNA及蛋白表达水平均显著降低(P<0.05);与Mimic对照组比较,Mimic组FLVCR mRNA及蛋白表达水平在12 h显著升高(P<0.05),24 h最高(P<0.05);与Inhibitor对照组比较,Inhibitor组FLVCR mRNA及蛋白表达水平降低(P<0.01),在24 h降低更明显(P<0.05)。与SO组比较,MCAO/R组BCRP mRNA及蛋白表达水平显著降低(P<0.05);与Mimic对照组比较,Mimic组BCRP mRNA及蛋白表达水平在12 h显著升高(P<0.01),24 h最高(P<0.05);与Inhibitor对照组比较,Inhibitor组BCRP mRNA及蛋白表达水平显著降低(P<0.01)。结论miR-137过表达可能促进FLVCR和BCRP的表达以保护大鼠脑缺血再灌注损伤。 | 袁莉 邓秋媚 向军军 陈炜 胡跃强 姚春 | 2023 | 西部医学2023，35，6： | 0 |
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