In recent years, new yeast species have proven their value and novel biotechnological applications have emerged. This book compiles the multi-faceted genetic repertoire of several yeasts relevant to modern biotechnology, and describes their utilization in research and application in the light of their genetic make-up and physiological characteristics. Moreover, the book presents a thorough overview of a wide array of methodologies from classical genetics to modern genomics technologies that have been and are being used in functional analysis of yeasts.