Submitted to: Mycological Society of America
Publication Type: Abstract Only
Publication Acceptance Date: August 10, 1995
Publication Date: N/A
Technical Abstract: rDNA sequences were obtained from ca. 500 strains representing more than 200 named species or varieties of Aspergillus. Variable regions D1 and D2 of 1-s rDNA (ca. 575 nucleotides) were analyzed using PAUP 3.1.1 and DNAPARS from PHYLIP 3.5. The consensus tree indicates some previously unknown relationships. H. acanthosporus is part of a clade including the members of section Clavati, the Neosartorya species and A. fumigatus form a sister group for sect. Clavati. Sect. Cremei includes several species previously placed in other sections, and is a sister group to species of Fennellia and some species previously placed in sect. Versicolores. Sects. Flavi and Nigri are sister groups largely composed of the species assigned there by Raper & Fennell (1965). Sects. Restricti and Aspergillus are sister taxa. Sect. Circumdati species are not monophyletic; although eight of the taxa form a clade, other species belong in one of several other sects. Sect. Cervini is a distinct group, but subgen. Ornati species occur in several clades. Sections Nidulantes, Versicolores and Usti species are paraphyletic.