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7 Blastocladiomycota

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Systematics and Evolution

Part of the book series: The Mycota ((MYCOTA,volume 7A))

Abstract

The Blastocladiomycota (blastoclads) are a phylum of zoosporic fungi that include diverse taxa such as the model water mold Allomyces. The 14 genera of blastoclads form a monophyletic group that is phylogenetically distinct from other Fungi and unique in having an alternation of haploid and diploid generations. Blastoclads can be distinguished from other zoosporic true fungi (e.g., Chytridiomycota) on the basis of the ultrastructure of their uniflagellated zoospores. These ultrastructural characters are also taxonomically informative at the generic level. The precise placement of Blastocladiomycota in the fungal tree of life is uncertain but has a large bearing on the evolution of several traits, such as an intact nuclear envelope during mitosis and heterothallism with mating types. Environmental DNA studies suggest that blastoclads may be enriched in suboxic or anaerobic environments, and although some species are known to be obligate fermenters, none is known to be obligately anaerobic.

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Authors and Affiliations

  1. Department of Ecology and Evolutionary Biology, University of Michigan, 830 N. University, Ann Arbor, MI, 48109, USA

    Timothy Y. James

  2. Biology Department, Duke University, Durham, NC 27708, USA and Department of Biology, McMaster University, Hamilton, ON, L8S 4K1, Canada

    Teresita M. Porter

  3. Department of Biology, Randolph-Macon College, Ashland, VA, 23005, USA

    W. Wallace Martin

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  1. Timothy Y. James
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  2. Teresita M. Porter
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  3. W. Wallace Martin
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Correspondence to Timothy Y. James .

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Editors and Affiliations

  1. Dept. Plant Biology, University of Minesota, St. Paul, Minnesota, USA

    David J. McLaughlin

  2. Department of Botany and Plant Pathology, Oregon State University, Corvallis, Oregon, USA

    Joseph W. Spatafora

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James, T.Y., Porter, T.M., Martin, W.W. (2014). 7 Blastocladiomycota. In: McLaughlin, D., Spatafora, J. (eds) Systematics and Evolution. The Mycota, vol 7A. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-55318-9_7

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