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I spy a picture of Neurospora growing on the cover of Genetics this month.  The cover highlights the results from the work of the lab of Luis Corrochano who works on  light regulation in a variety of systems like Neurospora and Phycomyces.  This work describes their work on the fluffy gene which regulates conidiation (production of conidia or asexual [...]

Congrats new AAM fellows

Congrats to Neurospora biologists Louise Glass and Jay Dunlap on their election to American Academy [...]

Neurospora 2010 and upcoming fungal conferences

Don’t forget to register for Neurospora 2010 held at the beautiful Asilomar Conference center in Pacific Grove, CA held April 8-11, 2010. Get your filamentous fungi fix here!

Also save the date for some other important upcoming conferences you may consider attending

American Society of Microbiology, Candida and Dimorphic Fungi Meeting, March 22-26, Miami, FL, USA
Joint Genome Institute, [...]

N.crassa lineage specific genes

Take a look at this post by Larry Moran on Takao Kasuga’s paper on phylogenetic distribution of genes in N. crassa genome. [...]

Fungal genome assembly from short-read sequences

This is a research blog so I though I’d post some quick numbers we are seeing for de novo assembly of the [[Neurospora crassa]] genome using Velvet. The genome of N.crassa is about 40Mb and sequencing of several flow cells using Solexa/Illumina technology to see what kind of de novo reconstruction we’d get.

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Podospora genome published

P.anserinaThe genome of Podospora anserina S mat+ strain was sequenced by Genoscope and CNRS and published recently in Genome Biology. The genome sequence data has been available for several years, but it is great to see a publication describing the findings.  The 10X genome assembly with ~10,000 genes provides an important dataset for comparisons [...]

RIP in the News

Interesting blog post that mentions N. crassa and RIP [...]

RIPing in an asexual fungus

ResearchBlogging.orgA.niger conidiophoreA paper in Current Genetics describes the discovery of Repeat Induced Polymorphism (RIP) in two Euriotiales fungi.  RIP has been extensively studied in Neurospora crassa and has been identified in other Sordariomycete fungi Magnaporthe, Fusiarium. This is not the first Aspergillus species to have RIP described as it was demonstrated in the biotech workhorse Aspergillus oryzae.  However, I think this study is the first to describe RIP in a putatively asexual fungus.  The evidence for RIP is only found in transposon sequences in the Aspergillus and Penicillium.  A really interesting aspect of this discovery is RIP is thought to only occur during sexual stage, but a sexual state has never been observed for these fungi.   [...]

Cryptococcus species deliniation

ResearchBlogging.org What delineates species boundaries in fungi? Much work has been done on biological and phylogenetic species concepts in fungi. Some concepts are reviewed in Taylor et al 2006 and in Taylor et al 2000, and applications can be seen in several pathogens such as Paraccocidiodies, Coccidioides, and the model filamentous (non-pathogenic) fungus Neurospora

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Neurospora speciation through experimental evolution

ResearchBlogging.orgDettman, Anderson, and Kohn recently published a paper in BMC Evolutionary Biology on reproductive experimental evolution in two Neurospora crassa populations evolved under different selective conditions. This is a great study that complements work published last year in Nature on experimental evolution in Saccharomyces cerevisiae populations. Neurospora populations were evolved under high salt and low temperature and were started from either high diversity (interspecific crosses, N. crassa vs N. intermedia) or low diversity (intraspecific cross, two N. crassa isolates D143 (Louisiana, USA)and D69 (Ivory Coast)) as described in Figure 1. The experimentally evolved populations were then tested for asexual and sexual fitness (they were taken through complete meiotic cycle throughout the experiment to avoid insure there was selection on the sexual reproduction pathway.

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