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The correlation among molecular phylogenetics, morphological data, and growth temperature of the genus Emericella, and a new species

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Mycoscience

Abstract

The species of the genus Emericella have been classified and identified on the basis of morphological features. However, the phylogenetic relationships in this genus have not been investigated. To clarify the relationships according to molecular phylogenetics, morphological characteristics, and growth temperature regimens in Emericella, multilocus sequencing analysis based on recent Aspergillus taxonomy was carried out. Various characteristic species formed individual clades, and maximum growth temperature reflected the phylogenetics. Emericella species exhibit various ascospore characteristics, although some species do not have distinct ascospore ornamentation. Species that have smooth-walled ascospores with two equatorial crests are polyphyletic. Here, Emericella pachycristata is described and illustrated as a new species. Its ascospores are similar to those of E. nidulans. These species produce smooth-walled ascospores, but the equatorial crests of E. pachycristata are thicker than those of E. nidulans. On the phylogenetic trees, E. pachycristata is closely related to E. rugulosa, which produces ascospores with ribbed convex surfaces. Thus, E. pachycristata is considered to be a new species both morphologically and phylogenetically.

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Acknowledgments

This work was supported in part by the National Bioresource Project “Pathogenic microbes in Japan” (http://www.nbrp.jp/) and a Grant-in-Aid for Scientific Research (B-18405005) from the Japan Society for the Promotion of Science.

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Authors and Affiliations

  1. Medical Mycology Research Center, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8673, Japan

    Tetsuhiro Matsuzawa, Reiko Tanaka, Yoshikazu Horie & Takashi Yaguchi

  2. Department of Dermatology, The First Hospital of Xinjiang Medical University, No. 1 Liyushan Road, Urumqi, Xinjiang, 830054, China

    Yan Hui & Paride Abliz

Authors
  1. Tetsuhiro Matsuzawa
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  2. Reiko Tanaka
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  3. Yoshikazu Horie
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  4. Yan Hui
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  5. Paride Abliz
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  6. Takashi Yaguchi
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Correspondence to Tetsuhiro Matsuzawa.

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Matsuzawa, T., Tanaka, R., Horie, Y. et al. The correlation among molecular phylogenetics, morphological data, and growth temperature of the genus Emericella, and a new species. Mycoscience 53, 433–445 (2012). https://doi.org/10.1007/s10267-012-0188-x

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  • DOI: https://doi.org/10.1007/s10267-012-0188-x

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