声明
Contents
摘要
Abstract
Abbreviations
1 Introduction
1.1 Research purposes and significance
1.2 Originality and creativeness
2 Literature review
2.1 Rice cultivation ecosystems and their hydrological status
2.2 Drought and its influence on rice production
2.2.1 Physiological effect and economic impacts
2.2.2 Types of drought stress
2.3 Drought resistance improvement by marker assisted selection
2.3.1 Identification of drought-related QTL
2.3.2 Marker-assisted selection to improve drought resistance
2.3.3 Molecular markers for drought resistance
2.4 Diversity of drought resistance-related genes in rice
2.5 Rice breeding for drought tolerance
2.5.1 Conventional breeding
2.5.2 The advance breeding
2.5.3 Participatory breeding
2.6 Screening for drought resistance
3 Materials and Methods
3.1 Plants,materials,and growth condition
3.2 Stress treatment and sampling
3.3 RNA isolation and reverse transcription
3.4 Quantitative real-time polymerase chain reaction(qRT-PCR) analysis
3.5 Association analysis and haplotype analysis
4 Results
4.1 Variations of SNAC1 expression in rice germplasms
4.2 Genetic variation and linkage disequilibrium at the SNAC1 locus
4.3 Population structure and association analysis of SNAC1
4.4 Haplotype analysis of SNAC1
5 Discussion
5.1 Expression level polymorphisms of SNAC1
5.2 Population structure and association analysis of SNAC1
5.3 Haplotype analysis of SNAC1
References
Appendix
Resume
Acknowledgement