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Published on: May 26, 2026
Multilocus sequence data reveal extensive phylogenetic species diversity within the Neurospora discreta complex
Jeremy R Dettman1, David J Jacobson, John W Taylor
1Department of Plant and Microbial Biology, University of California, Berkeley, California 94720, USA. jdettman@utm.utoronto.ca
Mycologia
|October 17, 2006
Summary
Genetic analysis reveals that Neurospora discreta is actually a complex of at least eight distinct fungal species. This study uncovers significant hidden genetic diversity within the Neurospora genus.
Area of Science:
- Mycology
- Evolutionary Biology
- Genetics
Background:
- Morphological, reproductive, and genetic variations suggest Neurospora discreta may comprise multiple species.
- Previous classifications may not accurately reflect the true species diversity within Neurospora.
Purpose of the Study:
- To investigate the species complex hypothesis for Neurospora discreta.
- To determine the phylogenetic relationships among traditionally identified N. discreta strains.
- To identify and delineate distinct phylogenetic species within the N. discreta complex.
Main Methods:
- Phylogenetic species recognition applied to 73 fungal strains of N. discreta.
- Sequence data obtained from three unlinked nuclear loci.
- Strain selection across morphological, ecological, and geographical ranges.
Main Results:
- The study identified at least eight separate phylogenetic species within the current N. discreta circumscription.
- Abundant, previously unrecognized genetic diversity within the Neurospora genus was revealed.
- Interspecific evolutionary relationships were characterized.
Conclusions:
- Neurospora discreta is a species complex containing at least eight distinct phylogenetic species.
- The findings highlight significant cryptic genetic diversity in Neurospora.
- This research enhances understanding of fungal species diversity and evolutionary relationships.
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