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保守的DNA修饰及其与玉米基因表达和表型性状的关联

摘要第6-8页
abstract第8-9页
Abbreviation第10-17页
Chapter1 Introduction第17-34页
    1.1 Maize(Zea mays L.)第17页
    1.2 C4 Photosynthesis pathway第17-23页
        1.2.1 Photosynthetic pigments第18-20页
        1.2.2 Gas exchange processes第20页
        1.2.3 Fluorescence processes第20-21页
        1.2.4 Genetics regulation and evolution of C4 pathways in Maize第21-22页
        1.2.5 Epigenetic regulation of C4 Pathways in Maize第22-23页
    1.3 DNA methylation第23-28页
        1.3.1 N5-methylcytosine(5mC)第23-24页
        1.3.2 N6-methyladenine(6mA)第24页
        1.3.3 Plant DNA methyltransferases and demethylases第24-28页
    1.4 Approaches for estimating DNA Methylation第28-29页
        1.4.1 HPLC-UV第28页
        1.4.2 ELISA-Based Methods第28页
        1.4.3 LC-MS/MS第28页
        1.4.4 Restriction specific enzymes第28-29页
        1.4.5 Immunoprecipitation of methylated DNA(meDIP)第29页
        1.4.6 Sodium Bisulfite treatment第29页
    1.5 Maize methylome第29-34页
        1.5.1 Genomic Distribution of DNA Methylation in Maize第29-30页
        1.5.2 Methylated Domains across the Maize Genome第30页
        1.5.3 DNA Methylation profiling at Maize Genes第30-31页
        1.5.4 DNA Methylation Profiling among TEs in Maize第31页
        1.5.5 Sources of variation for the Maize Methylome and Inheritance第31-34页
Chapter2 Phenotypic evaluation of maize inbred lines第34-45页
    2.1 Introduction第34-35页
    2.2 Material and Methods第35-37页
        2.2.1 Plant material and growth conditions第35页
        2.2.2 Gas Exchange and Chlorophyll fluorescence measurements第35-36页
        2.2.3 Chlorophyll Content第36页
        2.2.4 Statistical analysis第36-37页
    2.3 Results第37-43页
        2.3.1 Leaf color variation第37页
        2.3.2 Photosynthesis related trait variation第37-41页
        2.3.3 Chlorophyll contents第41-43页
    2.4 Discussion第43-45页
        2.4.1 Environmental cues mainly affect the photosynthesis efficiency第43-44页
        2.4.2 Chlorophyll Fluorescence efficiency第44页
        2.4.3 Chlorophyll accumulation第44-45页
Chapter3 Characterization of the C4 pathway enzymes genes in Maize第45-58页
    3.1 Introduction第45-46页
    3.2 Material and Methods第46-48页
        3.2.1 Plant materials and growth conditions第46页
        3.2.2 Gene identification and sequence analysis第46-47页
        3.2.3 RNA isolation第47-48页
        3.2.4 cDNA synthesis第48页
        3.2.5 Quantitative real time PCR第48页
    3.3 Results第48-55页
        3.3.1 Expression profiling of C4 photosynthetic genes第48-49页
        3.3.2 Genomic analysis of Rubisco activase第49-50页
        3.3.3 Expression profiling of Rubisco activase and subunits第50-51页
        3.3.4 Expression profiling of classical C4 genes in maize第51-54页
        3.3.5 Photosynthetic transcriptional factors第54-55页
    3.4 Discussion第55-58页
        3.4.1 Rubisco activase and their subunits are transcriptionally repressed in maize Leaves第55-56页
        3.4.2 Classical genes are key C4 photosynthesis regulators第56-57页
        3.4.3 Photosynthetic regulatory network第57-58页
Chapter4 Estimation of global and photosynthetic gene specific associated methylation levels in Maize第58-70页
    4.1 Introduction第58-60页
    4.2 Material and Methods第60-64页
        4.2.1 Plant materials and growth conditions第60页
        4.2.2 DNA extraction第60页
        4.2.3 Dot blot assay第60-61页
        4.2.4 Liquid chromatography-mass spectrometry(LC-MS/MS)assay第61-62页
        4.2.5 Bisulfite conversion and sequencing第62-63页
        4.2.6 Primer designing第63页
        4.2.7 PCR amplification第63页
        4.2.8 Cloning and sequencing of the amplicon第63-64页
        4.2.9 Data analysis第64页
    4.3 Results第64-69页
        4.3.1 Dot Blot analysis of DNA modifications第64-66页
        4.3.2 LC-MS/MS analysis of DNA modifications第66-67页
        4.3.3 Bisulfite Sequencing第67-69页
    4.4 Discussion第69-70页
        4.4.1 DNA modifications are dynamic in plants第69页
        4.4.2 Contribution of methylation levels with phenotypic traits and gene expression第69-70页
Conclusion第70-72页
References第72-90页
ACKNOWLEDGEMENTS第90-91页
CV第91-92页

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