Full Paper

Mycoscience

, Volume 53, Issue 6, pp 433-445

First online:

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

  • Tetsuhiro MatsuzawaAffiliated withMedical Mycology Research Center, Chiba University Email author 
  • , Reiko TanakaAffiliated withMedical Mycology Research Center, Chiba University
  • , Yoshikazu HorieAffiliated withMedical Mycology Research Center, Chiba University
  • , Yan HuiAffiliated withDepartment of Dermatology, The First Hospital of Xinjiang Medical University
  • , Paride AblizAffiliated withDepartment of Dermatology, The First Hospital of Xinjiang Medical University
  • , Takashi YaguchiAffiliated withMedical Mycology Research Center, Chiba University

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access

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.

Keywords

Emericella pachycristata Morphological features New taxon Physiological characteristics