| ACKNOWLEDGMENTS | 第1-8页 |
| ABSTRACT | 第8-11页 |
| 中文摘要 | 第11-15页 |
| Ⅰ Introduction | 第15-20页 |
| Ⅱ Literature Review | 第20-32页 |
| High yield rice breeding and wide compatibility germplasm | 第20-23页 |
| Heterosis performance and theory | 第23-26页 |
| DNA markers and gene/QTL mapping | 第26-32页 |
| Ⅲ Development of high yield hybrid rice combinations | 第32-59页 |
| Material and Method | 第32-33页 |
| Plant material | 第32-33页 |
| WCV and WCR identification and evaluation | 第33页 |
| Development of inter-subspecific hybrid rice using WCRs | 第33页 |
| Results | 第33-55页 |
| Wide compatibility germplasm | 第33-39页 |
| Development of a WCR-Zhong 413 | 第39-43页 |
| Development of Zhong 413's hybrid series | 第43-48页 |
| Phenotypic performance of heterosis | 第48-55页 |
| Conclusion and discussion | 第55-59页 |
| WCV (WCR) and inter-subspecific hybrid rice development | 第55-57页 |
| Spikelet Density as a important index in intersubspecies hybrid breeding | 第57-59页 |
| Ⅳ Genetic Mechanism of heterosis and QTLs mapping | 第59-93页 |
| Material and methods | 第59-63页 |
| Plant material | 第59-60页 |
| Phenotype experiment | 第60页 |
| Genotyping and construction of RFLP map | 第60-62页 |
| Data analysis and QTL mapping | 第62-63页 |
| Results | 第63-88页 |
| RFLP linkage map construction | 第63-65页 |
| Traits variation and heterosis in the test F1 hybrid | 第65-68页 |
| Relationship between triats expression and heterosis performance | 第68页 |
| Relationship between heterosis and the japonica genome content of RILs | 第68-72页 |
| Mapping QTLs contributing the performance of the F1 hybrid and heterosis | 第72-76页 |
| Mapping epistasis loci contributing the performance of the F1 hybrid and hetersos | 第76-88页 |
| Conclution and discussion | 第88-93页 |
| Genetic basis of heterosis of rice | 第88-90页 |
| Utilization of the heterosis in inter-suspecific hybrid rice | 第90-93页 |
| Ⅴ RFLP mapping and race specificity of bacterial blight resistance genes(QTLs) | 第93-104页 |
| Material and Methods | 第94-95页 |
| Plant material | 第94页 |
| Disease inoculation and evaluation | 第94页 |
| Genotyping of the RILs | 第94-95页 |
| Data analyses | 第95页 |
| Results | 第95-97页 |
| Resistance performance of parents and RILs | 第95-96页 |
| RFLP mapping of a major resistance gene,QTLs and epistasis loci | 第96-97页 |
| Race specificity of resistance major gene and QTLs | 第97页 |
| Conclusion and discussion | 第97-104页 |
| Resistance genes/QTL and its utilization | 第97-98页 |
| Host resistance genes/QTLs and Xoo strains | 第98页 |
| Major resistance genes and QTLs | 第98-104页 |
| LITERATURE CITED | 第104-122页 |
| 附录(发表论文和出版著作) | 第122-123页 |
