声明
摘要
Abstract
CONTENTS
Abbreviations
CHAPTER Ⅰ INTRODUCTION
1.1 Flowering
1.2 Transition to flowering
1.2.1 The role of miRNA156(miR156)in transition to flowering
1.2.2 The role of miRNA172(miR172)in transition to flowering
1.3 The mieroRNAs(miRNAs)in flowering time
1.3.1 The miRNA159(miR159)family
1.3.2 The miRNA319(miR319)family
1.3.3 The miRNA390(miR390)family
1.3.4 The miRNA399(miR399)family
1.4 Proteasomes related flowering time
1.4.1 The 26s proteasome
1.4.2 Proteasomal regulation of plant growth
1.5 Chloroplast Ycf2 related in flowering time
1.6 The earliness trait in breeding
1.7 Quantitative Trait Locus(QTL)
1.8 Candidate genes
1.9 QTL gene confirmation
1.10 Molecular marker
1.11 The nature of QTL variation
1.12 QTL mapping
1.12.1 MutMap method
1.12.2 QTL-seq method
1.12.3 MutMap+ method
1.13 Objectives
CHAPTER Ⅱ QTL-seq analysis of early flowering in tomato
2.1 Materials and methods
2.1.1 Plant materials and phenotypic evaluation
2.1.2 Genomic DNA extraction
2.1.3 QTL-seq analysis
2.2 Results
2.2.1 Distribution of early flowering time in F2 population
2.2.2 Sequencing data evaluation
2.2.3 Sequencing data evaluation of early flowering trait
2.2.4 Alignment analysis of sequencing data
2.2.5 SNP detection and annotation
2.2.6 Region location of the SNPs annotation
2.2.7 Genomic region responsible for the early flowering phenotype
CHAPTER Ⅲ Traditional QTL analysis for QTL-seq confirmation
3.1 Materials and methods
3.1.1 Plant materials
3.1.2 DNA extraction
3.1.3 Insert or deletion(InDel)markers performance
3.1.4 Quantitative trait loci(QTL)analysis
3.2 Results
CHAPTER Ⅳ Gene expression analysis of candidate genes
4.1 Materials and Methods
4.1.1 Plant material
4.1.2 Totai RNA extraction
4.1.3 Checking the quality of total RNA on agarose gel
4.1.4 Single-strand cDNA synthesis
4.1.5 RT-qPCR performance
4.2 Results
CHAPTER Ⅴ The expression of miR156 and miR172 early and late tomatoes and F1 progeny
5.1 Materials and Methods
5.1.1 Plant materials
5.1.2 Total RNA extraction
5.1.3 Checking the quality of total RNA on agarose gel
5.1.4 Single-strand cDNA synthesis
5.1.5 RT-qPCR performance
5.2 Results
5.2.1 General physiology of earliness,lateness and F1 progeny
5.2.2 Measuring of miR156 and miRl72 expression of P1,P2 and F1
CHAPTER Ⅵ CONCLUSIONS AND DISCUSSION
REFERENCES
ACKNOWLEDGEMENTS
CURRICULUM VITAE