Presenting information generated through the application of genetics, molecular biology, and biochemistry, this book analyzes information derived through real experiments, and focuses on unresolved questions in the field. The text describes the special features of fungi, interactions of fungi with other organisms, model fungi in research, gene manipulation, adaptations, and natural populations. Each stand-alone chapter enables the reader to progress from elementary concepts to advanced research, benefiting both beginning research workers and experienced professionals. A comprehensive appendix covers the principles in naming fungi and discusses their broad classification.