New findings of <i>Neurospora</i> in Europe and comparisons of diversity in temperate climates on continental scales

Jacobson, David J.; Dettman, Jeremy R.; Adams, Rachel; Boesl, Cornelia; Sultana, Shahana; Roenneberg, Till; Merrow, Martha; Duarte, Margarida; Marques, Isabel; Ushakova, Alexandra V.; Carneiro, Patrı́cia; Videira, Arnaldo; Navarro‐Sampedro, Laura; Olmedo, María; Corrochano, Luis M.; Taylor, John W.

doi:10.1080/15572536.2006.11832658

Cited by 40 publications

(30 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Single conidia were isolated by streaking conidia from a mass culture onto 10-fold diluted Vogel's medium agar plates (Vogel 1956). After incubation 18-24 h at ambient temperatures single, germinated conidia were transferred to establish cultures (Jacobson 1995). New isolates were deposited in the Fungal Genetics Stock Center (FGSC) (APPENDIX I).…”

Section: Methodsmentioning

confidence: 99%

Three new phylogenetic and biologicalNeurosporaspecies:N. hispaniola,N. metzenbergiiandN. perkinsii

Villalta¹,

Jacobson²,

Taylor

2009

Mycologia

Self Cite

View full text Add to dashboard Cite

The recent recognition of provisional Neurospora phylogenetic species (PS) 1-3 gave us the opportunity to compare genetic isolation, which underlies phylogenetic species recognition (PSR), with reproductive isolation as criteria for recognizing new species. This investigation involved first finding new individuals of PS 1-3 from a search of the Perkins culture collection, then assessing genetic isolation by PSR for old and new members of PS 1-3 and finally comparing species recognition by genetic isolation as determined by PSR to species recognition by reproductive isolation as determined by biological species recognition (BSR) and geographic distribution. To aid the search for additional members of the PS we used the genetic variation originally used to discover Neurospora PS 1-3 to easily distinguish members of Neurospora PS 1-3 from the closely related species N. crassa and N. intermedia. To increase our chance of success the analysis was performed on N. crassa and N. intermedia isolates that were either not clearly assignable to species by BSR using tester strains or were from the same geographic locations as the known members of PS1-3. Eleven new members of Neurospora PS 1-3 were identified: one new PS1, nine new PS2 and one new PS3. To complement PSR we investigated reproductive isolation with BSR in PS1-3 and the two other most closely related species, N. intermedia and N. crassa, with intraspecific and interspecific crosses. PS1 and PS2 appear reproductively isolated because they successfully mated intraspecifically and not interspecifically. PS3 isolates successfully crossed with other PS3 isolates, however they also successfully crossed with N. crassa, as previously reported, indicating that genetic isolation can precede reproductive isolation. We compared phylogenetic, mating and geographical data to challenge the use of PSR as the main criterion in the formal description of species and, having failed to discredit the approach, describe the new species, N. hispaniola (PS1), N. metzenbergii (PS2) and N. perkinsii (PS3).

show abstract

Section: Methodsmentioning

confidence: 99%

Three new phylogenetic and biologicalNeurosporaspecies:N. hispaniola,N. metzenbergiiandN. perkinsii

Villalta¹,

Jacobson²,

Taylor

2009

Mycologia

Self Cite

View full text Add to dashboard Cite

show abstract

“…A number of researchers have recognized species using " phylogenetic species recognition " criteria ( Taylor et al, 2000 ). The operational phylogenetic method is based on a " concordance of multiple gene genealogies, " and in addition to discriminating species, the method indicates whether fungal populations actually exchange genes in nature ( Taylor et al, 2000 ;Fisher et al, 2002 ;Dettman et al, 2006 ;Jacobson et al, 2006 ).…”

Section: Inside Plant Leaves and Stems -Almost All Plants Onmentioning

confidence: 99%

The Fungi: 1, 2, 3 … 5.1 million species?

Blackwell

2011

American J of Botany

1,187

681

View full text Add to dashboard Cite

Fungi are essential to the survival of many groups of organisms with which they form associations. They also attract attention as predators of invertebrate animals, pathogens of potatoes and rice and humans and bats, killers of frogs and crayfish, producers of secondary metabolites to lower cholesterol, and subjects of prize-winning research. Molecular tools in use and under development can be used to discover the world's unknown fungi in less than 1000 years predicted at current new species acquisition rates.

show abstract

“…This can be explained by the ecology of Neurospora , and considering that it is a saprotrophic fungus found in dead plant matter (Jacobson et al 2006), or can act as an endophyte under certain conditions (Kuo et al 2014). Temperature changes are the most common environmental variable that organisms experience, and pH changes are likely to occur as the fungus encounters different substrates in nature.…”

Section: Discussionmentioning

confidence: 99%

Epigenetic Control of Phenotypic Plasticity in the Filamentous Fungus Neurospora crassa

Kronholm

Johannesson

Ketola

2016

G3 Genes|Genomes|Genetics

View full text Add to dashboard Cite

Phenotypic plasticity is the ability of a genotype to produce different phenotypes under different environmental or developmental conditions. Phenotypic plasticity is a ubiquitous feature of living organisms, and is typically based on variable patterns of gene expression. However, the mechanisms by which gene expression is influenced and regulated during plastic responses are poorly understood in most organisms. While modifications to DNA and histone proteins have been implicated as likely candidates for generating and regulating phenotypic plasticity, specific details of each modification and its mode of operation have remained largely unknown. In this study, we investigated how epigenetic mechanisms affect phenotypic plasticity in the filamentous fungus Neurospora crassa. By measuring reaction norms of strains that are deficient in one of several key physiological processes, we show that epigenetic mechanisms play a role in homeostasis and phenotypic plasticity of the fungus across a range of controlled environments. In general, effects on plasticity are specific to an environment and mechanism, indicating that epigenetic regulation is context dependent and is not governed by general plasticity genes. Specifically, we found that, in Neurospora, histone methylation at H3K36 affected plastic response to high temperatures, H3K4 methylation affected plastic response to pH, but H3K27 methylation had no effect. Similarly, DNA methylation had only a small effect in response to sucrose. Histone deacetylation mainly decreased reaction norm elevation, as did genes involved in histone demethylation and acetylation. In contrast, the RNA interference pathway was involved in plastic responses to multiple environments.

show abstract

New findings of Neurospora in Europe and comparisons of diversity in temperate climates on continental scales

Abstract: The life cycles of the conidiating species of

Cited by 40 publications

References 15 publications

Three new phylogenetic and biologicalNeurosporaspecies:N. hispaniola,N. metzenbergiiandN. perkinsii

Three new phylogenetic and biologicalNeurosporaspecies:N. hispaniola,N. metzenbergiiandN. perkinsii

The Fungi: 1, 2, 3 … 5.1 million species?

Epigenetic Control of Phenotypic Plasticity in the Filamentous Fungus Neurospora crassa

Contact Info

Product

Resources

About