Analysis of cytokinin-induced maize leaf developmental changes and interacting genetic modifiers

iii CHAPTER I GENERAL INTRODUCTION 1 Thesis organization 5 References 6 CHAPTER II EXOGENOUS CYTOKININ PRODUCES SIMILAR LEAF 9 GROWTH PHENOTYPES AS THE MAIZE HAIRY SHEATH FRAYED1 MUTANT Abstract 9 Introduction 10 Materials and methods 13 Results 15 Discussion 28 Figure legends 36 Tables 39 References 40 Figures 43 CHAPTER III ANALYSIS OF ENHANCERS OF HAIRY SHEATH 52 FRAYED1 LEAF PATTERNING DEFECTS Abstract 52 Introduction 53 Materials and methods 58 Results 59 Discussion 74 Figure legends 81 Tables 84 References 85 Figures 89 CHAPTER IV GENERAL CONCLUSIONS 98 References 101 ACKNOWLEDGEMENTS 103