Smith T L
Biotechnology Center, University of Wisconsin-Madison.
Proc Natl Acad Sci U S A. 1989 Sep;86(18):7063-6. doi: 10.1073/pnas.86.18.7063.
Genes encoding glyceraldehyde-3-phosphate dehydrogenase (EC 1.2.1.12) from several evolutionarily disparate organisms were used to construct a phylogenetic tree by evolutionary parsimony. The GAPDH tree indicates that, in contrast to the presently accepted taxonomy of fungi, the yeasts Saccharomyces cerevisiae and Zygosaccharomyces rouxii evolved separately from the filamentous ascomycetes (such as Aspergillus nidulans) with which these yeasts are classified. According to this tree, the Saccharomyces-like yeasts evolved very early in the course of eukaryotic evolution, whereas both ascomycete and basidiomycete filamentous fungi diverged much later through a common ancestor.
利用来自几种进化上差异较大的生物体中编码甘油醛-3-磷酸脱氢酶(EC 1.2.1.12)的基因,通过进化简约法构建了系统发育树。甘油醛-3-磷酸脱氢酶(GAPDH)树表明,与目前公认的真菌分类法相反,酿酒酵母和鲁氏接合酵母与这些酵母被归为一类的丝状子囊菌(如构巢曲霉)是分别进化的。根据这棵树,类酵母样酵母在真核生物进化过程中很早就进化了,而子囊菌和担子菌的丝状真菌都是通过一个共同祖先在晚得多的时候才分化的。