Genetic and physical maps for the 16 chromosomes of Saccharomyces cere
visiae are presented. The genetic map is the result of 40 years of gen
etic analysis. The physical map was produced from the results of an in
ternational systematic sequencing effort. The data for the maps are ac
cessible electronically from the Saccharomyces Genome Database (SGD: h
ttp://genome-www.stanford. edu/Saccharomyces/).