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Cloning and Characterization of Two Novel Genes "BeSNAC1" and "BeWRKY2" from Bambusa Emeiensis and Their Transformation in Triticum Aestivum

摘要第5-7页
ABSTRACT第7-9页
List of abbreviations第10-22页
1 Introduction第22-36页
    1.1 Research significance第22-24页
        1.1.1 Wheat as a chief source of food第22页
        1.1.2 Wheat production and demand第22-24页
    1.2 Abiotic stresses第24-27页
        1.2.1 Drought第24-25页
        1.2.2 Salinity第25-27页
    1.3 Research Background第27-34页
        1.3.1 Transcription factors (TFs)第27-28页
        1.3.2 NAC Transcription factors第28-30页
        1.3.3 WRKY Transcription factors第30-34页
    1.4 Research objectives第34-35页
    1.5 Work layout第35-36页
2 Cloning and bioinformatics analysis of BeSNACl and BeWRKY2 genesfrom Bambusa emeiensis第36-65页
    2.1 Testing materials,main instruments and reagents第36-38页
        2.1.1 Testing materials第36页
        2.1.2 Main instruments for testing第36-37页
        2.1.3 Main reagents and other materials for testing第37页
        2.1.4 Reagents and medium preparation第37-38页
    2.2 Testing Methods第38-50页
        2.2.1 Selection and cloning of genes第38页
        2.2.2 Total RNA extraction第38-40页
        2.2.3 cDNA synthesis via RT-PCR第40页
        2.2.4 PCR amplification of coding sequence of BeSNAC1 &BeWRKY2第40-42页
        2.2.5 Validation of amplicons by Gel electrophoresis第42页
        2.2.6 Purification of validated PCR amplicons第42-43页
        2.2.7 Restriction digestion第43页
        2.2.8 Vector and genes purification第43-45页
        2.2.9 Ligation of purified amplicons to pMD19-T vector第45-46页
        2.2.10 Transformation of recombinant plasmids intoEscherichia coli (DH5a)第46-47页
        2.2.11 Blue-white screening第47页
        2.2.12 PCR confirmation of target genes ligation第47-48页
        2.2.13 Sequencing of genes第48页
        2.2.14 Culture expansion and plasmids extraction第48-49页
        2.2.15 Enzymatic validation of successful ligation第49-50页
    2.3 Bioinformatics analysis of BeSNACl and BeWRKY2 genes第50-51页
        2.3.1 The conserved motif analysis of BeSNACl and BeWRKY2第50页
        2.3.2 Multiple protein sequence alignment of BeSNAC1 andBeWRKY2第50页
        2.3.3 The phylogenetic analysis of BeSNAC1 and BeWRKY2第50页
        2.3.4 The domain structure analysis of BeSNAC1 and BeWRKY2第50-51页
    2.4 Results and Analysis第51-65页
        2.4.1 Total RNA extraction第51-52页
        2.4.2 PCR Amplification of BeSNACl and BeWRKY2第52-53页
        2.4.3 The enzymatic validation of BeSNAC1 and BeWRKY2第53页
        2.4.4 Sequencing results analysis第53-55页
        2.4.5 Domain structure analysis of the BeSNAC1第55-56页
        2.4.6 Domain structure analysis of the BeWRKY2第56-57页
        2.4.7 Multiple protein Sequence alignment of BeSNAC1第57-58页
        2.4.8 Multiple protein Sequence alignment of BeWRKY2第58-59页
        2.4.9 Phylogenetic analysis of BeSNAC1第59-61页
        2.4.10 Phylogenetic analysis of BeWRKY2第61-63页
        2.4.11 The conserved domain structure of BeSNACl第63-64页
        2.4.12 The conserved domain structure of BeWRKY2第64-65页
3 Yeast one-hybrid screening of BeSNAC1 and BeWRKY2第65-81页
    3.1 Testing materials, main instruments and reagents第65-69页
        3.1.1 Materials for testing第65页
        3.1.2 Main instruments for testing第65页
        3.1.3 Reagents and other materials第65-66页
        3.1.4 Main reagents preparation第66-69页
    3.2 Testing methods第69-76页
        3.2.1 PCR amplification of BeSNACl and BeWRKY2第69-70页
        3.2.2 Gel electrophoresis validation of PCR amplicons第70页
        3.2.3 Purification of validated PCR amplicons第70页
        3.2.4 Restriction digestion第70-71页
        3.2.5 Vector and genes purification第71页
        3.2.6 Ligation of genes with pEG202第71页
        3.2.7 Transformation of recombinant plasmids into Escherichiacoli (DH5α)第71-72页
        3.2.8 Escherichia coli (DH5a) culture第72页
        3.2.9 PCR confirmation of target gene ligation第72-73页
        3.2.10 Culture expansion and plasmids extraction第73-74页
        3.2.11 Enzymatic validation第74页
        3.2.12 Yeast EGY-48 Competent cells Preparation and Yeasttransformation第74-75页
        3.2.13 PCR validation of target genes第75-76页
    3.3 Results and Analysis第76-81页
        3.3.1 The PCR amplification of BeSNAC1 and Be WRKY2第76-77页
        3.3.2 Restriction digestion and ligation第77-78页
        3.3.3 Enzymatic validation第78-79页
        3.3.4 RCR validation of target genes in yeast第79-80页
        3.3.5 Transcriptional activity analysis of BeSNAC1 and BeWRKY2第80-81页
4 Sub-Cellular localization analysis BeSNAC1 and BeWRKY2第81-96页
    4.1 Testing materials, main instruments and reagents第81-84页
        4.1.1 Materials for testing第81页
        4.1.2 Main instruments for testing第81页
        4.1.3 Main reagents and other materials第81-82页
        4.1.4 Main reagents and medium preparation第82-84页
    4.2 Testing methods第84-91页
        4.2.1 PCR amplification of BeSNAC1 and BeWRKY2第84-85页
        4.2.2 Gel electrophoresis validation of PCR amplicons第85页
        4.2.3 Purification of validated PCR amplicons第85页
        4.2.4 Restriction digestion第85-86页
        4.2.5 Vector and genes purification第86页
        4.2.6 Ligation of genes with pTEX-GFP第86页
        4.2.7 Insertion of the vector into Escherichia coli (DH5α)第86-87页
        4.2.8 Escherichia coli (DH5α) culture第87页
        4.2.9 PCR confirmation of target genes ligation第87-88页
        4.2.10 Culture expansion and plasmids extraction第88页
        4.2.11 Enzymatic validation第88页
        4.2.12 The onion epidermal cells preparation第88-89页
        4.2.13 Gold preparation第89页
        4.2.14 Coating plasmids with gold第89-90页
        4.2.15 Transformation using particles delivery system第90页
        4.2.16 Microscopic analysis第90-91页
    4.3 Results and Analysis第91-96页
        4.3.1 The gel electrophoresis validation of PCR amplicons第91-92页
        4.3.2 Restriction digestion and ligation第92-93页
        4.3.3 Enzymatic validation第93-94页
        4.3.4 Subcellular localization of BeSNACl and BeWRKY2第94-96页
5 The expression pattern analysis of BeSNAC1 and BeWRKY2 of Bambusaemeiensis第96-107页
    5.1 Testing materials, main instruments and reagents第96-97页
        5.1.1 Testing materials第96页
        5.1.2 Main instruments for testing第96页
        5.1.3 Main reagents and other materials for testing第96页
        5.1.4 Reagents preparation第96-97页
    5.2 Testing methods第97-101页
        5.2.1 Plant materials and stress treatments第97-98页
        5.2.2 Total RNA extraction第98页
        5.2.3 cDNA synthesis via RT-PCR第98页
        5.2.4 The qRT-PCR primers第98-99页
        5.2.5 Real-time PCR Primers specificity detection第99-100页
        5.2.6 Expression pattern analysis of BeSNACl and BeWRKY2 byQuantitative Real-time PCR (qRT-PCR)第100页
        5.2.7 Statistical analysis第100-101页
    5.3 Results and Analysis第101-107页
        5.3.1 Gel electrophoresis analysis of Total RNA第101-102页
        5.3.2 The qRT-PCR primers specificity detection第102-103页
        5.3.3 Expression pattern analysis of BeSNACl via quantitativeReal-time PCR (qRT-PCR)第103-105页
        5.3.4 Expression pattern analysis of BeWRKY2 via quantitativeReal-time PCR (qRT-PCR)第105-107页
6 Construction of overexpression vector, wheat transformation andvalidation of overexpressed plants第107-129页
    6.1 Testing materials, main instruments and reagents第107-110页
        6.1.1 Testing materials第107页
        6.1.2 Main instruments for testing第107页
        6.1.3 Main reagents and other materials for testing第107-108页
        6.1.4 Reagents and mediums preparation第108-110页
    6.2 Testing methods第110-121页
        6.2.1 Overexpression vector construction第110-115页
        6.2.2 Ex-plant preparation and Callus induction第115-116页
        6.2.3 Gold preparation第116页
        6.2.4 Coating overexpression vectors with gold第116页
        6.2.5 Osmotic treatment and transformation第116-117页
        6.2.6 Validation and overexpression analysis of target genes intransformed plants第117-121页
    6.3 Results and Analysis第121-129页
        6.3.1 The gel electrophoresis validation of PCR amplicons第121-122页
        6.3.2 Restriction digestion and ligation第122-123页
        6.3.3 Enzymatic validation第123-124页
        6.3.4 Callus induction and regeneration of seedlings bombardedwith BeSNACl第124-125页
        6.3.5 Callus induction and regeneration of seedlings bombardedwith BeWRKY2第125-126页
        6.3.6 Validation and overexpression analysis of BeSNACl intransformed plants第126-127页
        6.3.7 Validation and Overexpression analysis of BeWRKY2 intransformed plants第127-128页
        6.3.8 Ti generation of BeSNACl and BeWRKY2 overexpressedplants第128-129页
7 Discussion and Conclusion第129-135页
ACKNOWLEDGEMENT第135-136页
DEDICATION第136-137页
References第137-146页
Academic papers and research findings第146页

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