声明
TABLE OF CONTENTS
摘要
ABSTRACT
ABBREVIATIONS USED IN THIS STUDY
CHAPTER Ⅰ
1.LITERATURE REVIEW
1.1 Seed dormancy
1.2 Relationship between Seed Dormancy and Germination
1.3 Classification system for seed Dormancy
1.4 Seed Structure and Seed Dormancy evolution
1.5 Hormonal control of seed dormancy
1.6 Control of Dormancy and Germination by Environment and Seed coat components
1.7 Regulation of Seed Dormancy
1.8 QTL analysis of seed dormancy in rice
1.9 Marker Assisted Selection for yield improvement in rice
1.10 Genome-wide association studies (GWAS) in rice
CHAPTER Ⅱ GENOME-WIDE ASSOCIATION MAPPING REVEALED A DIVERSE GENETIC BASIS OF SEED DORMNCY ACROSS SUBPOPULATIONS IN RICE (Oryza sativa L.)
1.Methods
1.1 Plant materials and sequencing
1.2 Collection of sequence data,sequence alignment and SNP identification
1.3 SNP annotation
1.4 QTL Imputing missing genotype using an LD-KNN algorithm
1.5 Estimating the accuracy of genotyping and imputation and the sensitivity of SNP identification
1.6 Field Experiments
1.7 Phenotype assessment for seed dormancy
1.8 Statistical Analysis
1.9 Association mapping
1.10 Sdr4 and GA2ox3 Hapiotype analysis
2.Results
2.1 Phenotypic evaluations and heritability
2.2 Association mapping in FHS
2.3 Association mapping in ARS
2.4 Genes and QTL around the putative peak positions
2.5 Sdr4 haplotypes analysis
2.6 GA2OX3 haplotypes analysis
3.Discussion
3.1 Diverse genetic basis of seed dormancy in indica,japonica and Aus subpopulations
3.2 Early and late detectable signals controlling seed dormancy
3.3 Candidate genes for seed dormancy
3.4 Sdr4 and GA2ox3 hapiotypes for breeding pre-harvest sprouting resistance variety
CHAPTER Ⅲ MOLECULAR CLONINGAND CHARACTEIUZATION OF (OsOOGl),A RICE SEED DORMANCY CANDIDATE GENE
1.Methods
1.1 Plant Materials
1.2 DNA extraction
1.3 RNA extraction
1.4 Complementary DNA (cDNA) synthesis and RT-PCR
1.5 Cloning of OsDOGl,OsDOG2 and OsDOG3
1.6 Transformation of OsDOG1 into Nipponbare
1.7 Germination Testing
1.8 ABA Measurements
1.9 UFLC-ESI-MS/MS
1.10 Gene expression analyses
2.Results and Discussion
2.1 Germination Characteristics
2.2 ABA quantification
2.3 Genes involved in ABA Biosynthesis pathway
Conclusion
References
Acknowledgements
Personal Information
Publications
Scholarship Awards