Contributors xi
Preface xv
Chapter 1 Why Should Weed Scientists Care About Genomics? 3
WILLIAM K. VENCILL
Genomics To A Weed Scientist 3
Resistance 4
Better Use Of Existing Herbicides 8
Chapter 2 An Introduction To Molecular Genetic And Genomic Techniques 11
CHHANDAK BASU AND SAM R. ZWENGER
Weeds As A Source Of Genes For Crop Improvement 11
Tools And Approaches For Understanding Weediness At
The Molecular Level 12
Chapter 3 Arabidopsis Is Not A Weed, And Mostly Not A Good Model For Weed Genomics; There Is No Good Model For Weed Genomics 25
JONATHAN GRESSEL
Introduction: Arabidopsis And Weediness 25
Questions About Weedsâ"Can Arabidopsis Genomics Answer Them? 27
The Misdirected Approach In Using Arabidopsis To Elucidate New Herbicide Targets 28
Arabidopsis Genomics Can Help In Dealing With Transgene Flowâ"In A Limited Manner 29
Lessons To Be Learned 30
Chapter 4 Model Weeds For Genomics Research 33
WUN S. CHAO AND DAVID P. HORVATH
What Makes A Good Model Species? 34
Leveraging From Other Models 36
Genomics Tools For Weeds That Are Under Development 44
Chapter 5 21st-Century Weed Science: A Call For Amaranthus Genomics 53
PATRICK J. TRANEL AND FEDERICO TRUCCO
The Amaranthus Genus 53
Hybridization And Adaptive Evolution 61
Herbicide Resistance 64
Currently Available Genomic Resources 71
Needs And Opportunities 75
Chapter 6 Evolutionary Genomics Of Weedy Rice 83
BRIANA L. GROSS AND KENNETH M. OLSEN
Phenotypic Diversity Of Weedy Rice 84
Genomic Diversity Of Weedy Rice 85
The Origin(s) And Evolution Of Weedy Rice 89
The Genetic Basis Of Weediness And Use Of Weedy Rice In Crop Breeding 94
Chapter 7 Rhizomatousness: Genes Important For A Weediness Syndrome 99
ANDREW H. PATERSON
Developmental Context 100
An Exemplary Case: Johnsongrass 101
Dissecting The Genetic Control Of Rhizomatousness 103
Early Insights Into The Sorghum Rhizo-Transcriptome 105
Future Work And Potential Applications 107
Synthesis 109
Chapter 8 Leafy Spurge: An Emerging Model To Study Traits Of Perennial Weeds 113
DAVID P. HORVATH AND JAMES V. ANDERSON
Regulation Of Shoot Development And Growth 113
Regulation Of Bud Dormancy 116
Case Study: Leafy Spurge 117
Future Work 122
Chapter 9 Herbicide Resistance: Target Site Mutations 127
CHRISTOPHER PRESTON
Resistance To Photosystem II-Inhibiting Herbicides 128
Resistance To Acetohydroxyacid Synthase-Inhibiting Herbicides 131
Resistance To Acetyl Coenzyme A Carboxylase-Inhibiting Herbicides 136
Resistance To Glyphosate 138
Resistance To Microtubule Assembly Inhibitors 140
Resistance To Phytoene Desaturase Inhibitors 141
Chapter 10 Molecular and Genomic Mechanisms Of Non-Target-Site Herbicide Resistance 149
JUN HU, PATRICK J. TRANEL, C. NEAL STEWART JR., AND JOSHUA S. YUAN
Herbicide Application And Resistance 149
Herbicide Classification And Resistance 150
Non-Target Herbicide Resistance 150
Signal Transduction 150
Detoxification and Modification 151
Chapter 11 A Herbicide Defense Trait That Is Distinct From Resistance: The Evolutionary Ecology And Genomics Of Herbicide Tolerance 163
REGINA S. BAUCOM
Resistance Versus Tolerance In Weed Science 163
Tolerance In Evolutionary Ecology 166
Tolerance Traits And The Genomics Of Tolerance 171
Why Again Should We Focus On Tolerance, Tolerance Traits, And The Genomics Of Tolerance? 172
Chapter 12 The Genomics of Plant Invasion: A Case Study In Spotted Knapweed 177
AMANDA K. BROZ AND JORGE M. VIVANCO
Why Study Invasive Plant Genomics? 177
Spotted Knapweed Life History 178
Allelopathy And The Novel Weapons Hypothesis 180
Genomics Resources And Approaches For Studying Spotted Knapweed 185
Chapter 13 Molecular Ecology Of Plant Competition 197
DOMINIK D. SCHMIDT, MERIJN R. KANT, AND IAN T. BALDWIN
Competition Signals And Their Perception By Plants 198
Molecular Basis Of Competitively Important Traits 207
Transcriptomic Insights Into Competitive Interactions Of Weedy Plants 211
Chapter 14 Genomics And Weeds: A Synthesis 221
STEPHEN O. DUKE, SCOTT R. BAERSON, AND JONATHAN GRESSEL
From Fundamental Information To Practical Solutions 222
Where Do We Go From Here? 241
Index 249
