Neurospora from Natural Populations: A Global Study

Turner, Barbara C.; Perkins, David; Fairfield, A.

doi:10.1006/fgbi.2001.1247

Cited by 124 publications

(149 citation statements)

References 129 publications

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“…Instead of morphology, Perkins and colleagues, in this and subsequent publications (Perkins & Turner 1988;Turner et al 2001), advocated the use of mating tests to pairs of tester strains (one for each of the two mating types, designated mat A and mat a) to assign individuals to species. This criterion was used to describe a new outbreeding species, Neurospora discreta (Perkins & Raju 1986).…”

Section: The Fungi a Kingdom Of Microbial Eukaryotesmentioning

confidence: 99%

“…Remember that by MSR, the eight-spored Neurospora species would form a single species with a circumglobal tropical and subtropical distribution. Using BSR based on mating to tester strains, Perkins and colleagues recognized four, eight-spored species with the following distributions (Perkins & Turner 1988;Turner et al 2001). Neurospora intermedia had the broadest, being found in tropical and subtropical regions of Asia, the New World, Africa, India and Australia.…”

Section: The Fungi a Kingdom Of Microbial Eukaryotesmentioning

confidence: 99%

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Eukaryotic microbes, species recognition and the geographic limits of species: examples from the kingdom Fungi

Taylor

Turner

Townsend

et al. 2006

Phil. Trans. R. Soc. B

301

249

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The claim that eukaryotic micro-organisms have global geographic ranges, constituting a significant departure from the situation with macro-organisms, has been supported by studies of morphological species from protistan kingdoms. Here, we examine this claim by reviewing examples from another kingdom of eukaryotic microbes, the Fungi. We show that inferred geographic range of a fungal species depends upon the method of species recognition. While some fungal species defined by morphology show global geographic ranges, when fungal species are defined by phylogenetic species recognition they are typically shown to harbour several to many endemic species. We advance two non-exclusive reasons to explain the perceived difference between the size of geographic ranges of microscopic and macroscopic eukaryotic species when morphological methods of species recognition are used. These reasons are that microbial organisms generally have fewer morphological characters, and that the rate of morphological change will be slower for organisms with less elaborate development and fewer cells. Both of these reasons result in fewer discriminatory morphological differences between recently diverged lineages. The rate of genetic change, moreover, is similar for both large and small organisms, which helps to explain why phylogenetic species of large and small organisms show a more similar distribution of geographic ranges. As a consequence of the different rates in fungi of genetic and morphological changes, genetic isolation precedes a recognizable morphological change. The final step in speciation, reproductive isolation, also follows genetic isolation and may precede morphological change.

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Section: The Fungi a Kingdom Of Microbial Eukaryotesmentioning

confidence: 99%

Section: The Fungi a Kingdom Of Microbial Eukaryotesmentioning

confidence: 99%

Eukaryotic microbes, species recognition and the geographic limits of species: examples from the kingdom Fungi

Taylor

Turner

Townsend

et al. 2006

Phil. Trans. R. Soc. B

301

249

View full text Add to dashboard Cite

show abstract

“…RAD mapping can be used to identify restriction site polymorphisms between any two polymorphic strains without a priori knowledge of the polymorphisms. This will allow Neurospora researchers to easily move beyond the standard Oak Ridge and Mauriceville wildtype strains to examine genetic variation in other natural isolates (Turner et al 2001). For example, the high density of RAD markers will facilitate analysis of quantitative trait loci (QTL) that contribute to phenotypic variation.…”

Section: Discussionmentioning

confidence: 99%

High-Density Detection of Restriction-Site-Associated DNA Markers for Rapid Mapping of Mutated Loci in Neurospora

et al. 2007

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The wealth of sequence information available for Neurospora crassa and other fungi has greatly facilitated evolutionary and molecular analyses of this group. Although ''reverse'' genetics, in which genes are first identified by their sequence rather than by their mutant phenotypes, serves as a valuable new approach for elucidating biological processes, classical ''forward'' genetic analysis is still extremely useful. Unfortunately, mapping mutations and identifying the corresponding genes has typically been slow and laborious. To facilitate forward genetics in Neurospora, we have adapted microarray-based restriction-site-associated DNA (RAD) mapping for use with N. crassa oligonucleotide microarrays. This technique was used to simultaneously detect an unprecedented number of genomewide restriction site polymorphisms from two N. crassa strains: Mauriceville and Oak Ridge. Furthermore, RAD mapping was used to quickly map a previously unknown gene, defective in methylation-7 (dim-7).

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“…The five conidiating Neurospora species cannot be distinguished from one another on the basis of vegetative morphology or color. Morphology nonetheless continue to be useful for identifying N. tetrasperma because this pseudohomothallic species produces perithecia with asci containing four dikaryotic and binucleate spores, as opposed to the eight-spored asci found in all other Neurospora species (Turner et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

First report of Neurospora on Corylus avellana in natural forest of Iran

Rahnama¹,

Habibi²

2015

J. Yeast Fungal Res.

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Teleomorph stage of the fungus Neurospora udagawae was formed abundantly on the culture media of potato dextrose agar, potato carrot agar and malt extract agar. Perithecia were visible on the culture medium and plant tissues (on the bark of tree) of hazelnut tree (Corylus avellana L.) from specimens of the Northwest forest of Iran. The fungus was identified for the first time in this area. The isolate was examined for its macroscopic and microscopic features and identified as nonconidiating species of Neurospora. Growth rate of the fungus hyphae was more than twice in 30 than 10 and 20°C. There was no growth at 5 and 40°C. This fungus is recorded here for the first time from hazelnut tree of Iran and so in the world.

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Neurospora from Natural Populations: A Global Study

Cited by 124 publications

References 129 publications

Eukaryotic microbes, species recognition and the geographic limits of species: examples from the kingdom Fungi

Eukaryotic microbes, species recognition and the geographic limits of species: examples from the kingdom Fungi

High-Density Detection of Restriction-Site-Associated DNA Markers for Rapid Mapping of Mutated Loci in Neurospora

First report of Neurospora on Corylus avellana in natural forest of Iran

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