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Citation for Study 1025

About Citation title: "A geographically diverse set of isolates indicates two phylogenetic lineages within Stachybotrys chartarum.".
About This study was previously identified under the legacy study ID S916 (Status: Published).

Citation

Koster B., Scott J., Wong B., Malloch D., & Straus N. 2003. A geographically diverse set of isolates indicates two phylogenetic lineages within Stachybotrys chartarum. Canadian Journal of Botany, 81: 1-11.

Authors

  • Koster B.
  • Scott J.
  • Wong B.
  • Malloch D.
  • Straus N.

Abstract

Stachybotrys chartarum is a black mitosporic fungus capable of dense colonization of cellulose-based building materials such as drywall. The presence of S. chartarum in indoor environments has been reported as linked to a variety of alleged environment-related illnesses including infant acute idiopathic pulmonary hemorrhage (AIPH) although there continues to be a lack of direct evidence in support of this association. We investigated genetic variation among fifty-two morphologically and geographically diverse, indoor and outdoor isolates of S. chartarum senu lato using molecular markers based on β-tublulin, calmodulin, elongation factor 1-alpha and trichodiene synthase genes as well as the ITS region of nuclear ribosomal DNA. Gene genealogies proved concordant in dividing all isolates into two strongly supported clades. The majority of the variable sites separating these lineages were fixed within each of these clades and there was no evidence of recombination between genotypes. The results of this study therefore provide strong support for the recognition of two phylogenetic species within S. chartarum ss. lat. and further demonstrate the limitations of morphological characters in delineating monophyletic taxa among morphologically simple fungi.

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  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S1025
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