| 摘要 | 第1-5页 |
| ABSTRACT | 第5-7页 |
| Table of contents | 第7-8页 |
| I INTRODUCTION TO THIS STUDY | 第8-13页 |
| I.1.BACKGROUND ON PLANT TISSUE CULTURE AND SOMACLONAL VARIATION | 第8-9页 |
| I.2.P henotypic aspects of somaclonal variation | 第9页 |
| I.3.G enetic aspects of somaclonal variation | 第9-11页 |
| I.4.E pigenetic changes underlying somaclonal variation | 第11-13页 |
| II Analysis of genetic and epigenetic variation induced bye tissue culture in japonica and indica rice cultivars | 第13-37页 |
| II.1 Introduction | 第13-14页 |
| II.2 Material and Methods | 第14-17页 |
| II.3 Results | 第17-37页 |
| Discussion | 第37-40页 |
| In japonica rice cultivar | 第37页 |
| In indica rice cultivars | 第37-40页 |
| Changes in DNA methylation sites and patterns were genotype-dependent | 第37-39页 |
| Correlation between DNA methylation changes and activity of m Ping elements | 第39-40页 |
| Conclusions | 第40-41页 |
| References | 第41-47页 |
| Acknowledgements | 第47页 |
