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Archiascomycetes: detection of a major new lineage within the Ascomycota

  • Original Papers
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Mycoscience

Abstract

For phylogenetic analysis of the higher fungi, we sequenced the nuclear small subunit rRNA (18S rRNA) gene fromTaphrina populina, the type species of the genusTaphrina, andProtomyces lactucae-debilis. The molecular phylogeny inferred from these 2 sequences and 75 sequences from the DNA data bank divided the Ascomycota into three major lineages: the hemiascomycetes, the euascomycetes, and the archiascomycetes, newly described herein. The former two lineages are monophyletic, whereas the archiascomycetes, which originated first and are comprised ofTaphrina, Protomyces, Saitoella, Schizosaccharomyces, andPneumocystis, may not be monophyletic. Among the archiascomycetes, theTaphrina/Protomyces branch is monophyletic. Confirmation of the archiascomycetes as a monophyletic taxonomic class will require comparison of additional genetically defined characters.

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Authors and Affiliations

  1. Institute of Molecular and Cellular Biosciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, 113, Tokyo, Japan

    Hiromi Nishida & Junta Sugiyama

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  1. Hiromi Nishida
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  2. Junta Sugiyama
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This work was supported in part by grants 05454030 from the Ministry of Education, Science, and Culture of Japan (to J. S.) and 4369 from the Japan Society for the Promotion of Science Fellowship Programs (to H. N.).

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Nishida, H., Sugiyama, J. Archiascomycetes: detection of a major new lineage within the Ascomycota. Mycoscience 35, 361–366 (1994). https://doi.org/10.1007/BF02268506

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