声明
摘要
Abstract
1 Introduction
1.1 Fruits
1.2 Melon introduction and its classification
1.3 Melon botany and its origin
1.4 Physiological changes occur during ripening in melon
1.5 Biochemical changes occur during ripening in melon
1.5.1 Carbohydrate metabolism
1.5.2 Organic acids
1.5.3 Cell wall metabolism
1.6 Moleeular markers
1.6.1 Categories of molecular markers
1.6.2 Dominant DNA markers
1.6.3 Co-dominant markers
1.7 Sequencing technology
1.7.2 Application of High-throughput sequencing
1.8 Quantitative trait loci(QTL)
1.8.1 Mapping population
1.8.2 Linkage map analysis
1.8.3 Determination of genetic distance
1.8.4 Statistical methods to detect QTL
1.9 Various genetic basis studies for QTL detection in melon and other fruits
1.10 Objectives of current research
1.11 Technical route of research
1.12 Annual research plan
2 Materials and methods
2.1 Field trials and methods
2.1.1 Experimental material
2.1.2 Greenhouse test design
2.1.3 Seed treatment
2.1.4 Raising of nursery seedlings
2.1.5 Selfing of F2:3 plant population
2.1.6 Phenotypic evaluation for fruit traits
2.2 Molecular experiment reagents and instruments
2.2.1 Required reagents
2.2.2 Molecular experiment instruments
2.2.3 Preparation of required reagents
2.3 Molecular experiment procedures
2.3.1 Sequencing library assembling
2.3.2 Assembling of CAPS markers by High-throughput sequencing information
2.3.3 CAPS markers designing
2.3.4 PCR for CAPS markers verification and genotyping
2.3.5 Restriction endonuclease (RE) digestion reaction
2.4 Molecular markers data analysis method
2.4.1 CAPS markers genotyping data analysis,procedure and method
2.4.2 Genetic map assembling and QTL analysis
2.4.3 Statistical analysis
3 Results and analysis
3.2 Analysis of CAPS polymorphism screening and DNA detection
3.3 Analysis of linkage map construction through novel CAPSs
3.4 Analysis of melon fruit traits
3.4.1 Analysis of fruit weight
3.4.2 Analysis of fruit firmness
3.4.3 Analysis of fruit length and width
3.4.4 Analysis of fruit shape
3.4.5 Analysis of flesh firmness
3.4.6 Analysis of Brix
3.4.7 Analysis of pH
3.4.8 Analysis of TA(titratable acidity)
3.5 Analysis of QTLs related to fruit traits
3.5.1 Analysis of fruit weight QTLs
3.5.2 Analysis of fruit firmness QTLs
3.5.3 Analysis of flesh firmness QTLs
3.5.4 Analysis of Brix QTLs
3.5.5 Analysis of fruit length,width and shape QTLs
3.5.6 Analysis of pH QTLs
3.5.7 Analysis of TA (titratable acidity) QTLs
4 Discussion
4.1 Importance of molecular markers
4.2 Linkage map assembling by CAPS markers
4.3 Detection of melon fruit traits QTLs
4.3.1 Fruit weight QTLs
4.3.2 Fruit length,width and shape QTLs
4.3.3 Fruit firmness and flesh firmness QTLs
4.3.4 Fruit Brix QTLs
4.3.5 Fruit pH and TA QTLs
4.4 Innovative points
5 Conclusion
5.1 Fruit traits segregation
5.3 Linkage mapping and QTL analysis
Acknowledgement
References
Appendix
Papers published during the time period of Ph.D education