Mitchell B. Cruzan
Many of the characteristics that distinguish plants from other living organisms can be traced to their bacterial origin early in the history of life. These features - such as a multicellular haploid life stage, prevalent hermaphroditism, self-fertilization, and general dependence on biotic and
abiotic vectors for reproduction - stem directly from the plant's ability to obtain energy from the sun. This novel mode of energy capture had far-ranging implications for plant evolution. It not only fueled the tremendous diversification of life on Earth that followed, but also had far-ranging
implications for the evolution of photosynthetic microorganisms and eventually for land plants. Understanding the evolutionary processes for the proliferation and diversification of plants requires an appreciation of their unique biological features. While the processes of mutation, selection,
genetic drift, and gene flow remain the same for both plants and animals, there are specific characteristics of plants that modify the way their evolution is implemented.
Unique traits of plants affect everything from the fate of mutations, through exposure to selection in a haploid life
phase, to the distribution of genetic variation within populations, and ultimately the rates and patterns of diversification. This book examines the origins of the unique evolutionary features of plants, as well as their implications for evolutionary processes. Author Mitchell B. Cruzan provides
contemporary discussion of subjects including population genetics, phylogeography, phylogenetics, ecological genetics, and genomics. The book fills a need for modern coverage of these topics, all of which are essential to a wide range of advanced courses in plant biology.
Preface
Introduction
Origins of Diversity
1. Origin of Plant Life
2. Diversification of Land Plants
Mechanisms of Diversification
3. Origins of Variation
4. Distribution of Genetic Variation
5. Selection
Patterns of Diversity
6.
Phenotypic Variation
7. Quantifying Phenotypes
8. Intraspecific Variation
Process of Diversification
9. Reproduction
10. Reproductive Isolation and Hybridization
11. Speciation and Diversification
Definitions of Variables
Definitions of
Terms
Literature Cited
Index
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Mitchell B. Cruzan is Professor of Biology at Portland State University. He conducts research on the processes of adaptation and speciation in plants. Dr. Cruzan's research currently focuses on the ecological genomics of seed dispersal, invasive species, and processes of mutation accumulation
in plants.
Plant Life - Frederick B. Essig
Approaches to Plant Evolutionary Ecology - G.P. Cheplick
Carnivorous Plants - Edited by Aaron Ellison and Lubomír Adamec
Flora Unveiled - Lincoln Taiz and Lee Taiz
Essentials of Developmental Plant Anatomy - Taylor A. Steeves and Vipen K. Sawhney
The Evolution of Plants - Kathy Willis and Jennifer McElwain
Carnivorous Plants - Edited by Aaron Ellison and Lubomír Adamec
