WICKERHAM L J
Science. 1958 Dec 12;128(3337):1504-5. doi: 10.1126/science.128.3337.1504.
Species in four genera of yeasts produce mating types that clump when brought together in liquid or on solid media. All species of a phylogenetic line of Saccharomyces are sexually agglutinative. Unisexuals of the latter species are believed to have from one to four sets of chromosomes, whereas bisexuals are believed to have from two to eight sets.
酵母四个属中的物种会产生交配型，当它们在液体或固体培养基中混合在一起时会聚集。酿酒酵母系统发育谱系中的所有物种都具有性凝集性。后一种物种的单倍体被认为有一到四组染色体，而二倍体被认为有两到八组染色体。
