Mating type and mating strategies in Neurospora

@article{Metzenberg1990MatingTA,
  title={Mating type and mating strategies in Neurospora},
  author={Robert L. Metzenberg and N. Louise Glass},
  journal={BioEssays},
  year={1990},
  volume={12}
}
In the heterothallic species Neurospora crassa, strains of opposite mating type, A and a, must interact to give the series of events resulting in fruiting body formation, meiosis, and the generation of dormant ascospores. The mating type of a strain is specified by the DNA sequence it carries in the mating type region; strains that are otherwise isogenic can mate and produce ascospores. The DNA of the A and a regions have completely dissimilar sequences. Probing DNA from strains of each mating… 
Novel mutations of the A mating-type idiomorph in Neurospora crassa
TLDR
An attempt to isolate new mutants of the A mating-type locus to further delineate the functional domains of the mt A-1 ORF that controls these seemingly unrelated functions.
Isolation of Neurospora crassa A mating type mutants by repeat induced point (RIP) mutation.
TLDR
This study has used repeat induced point (RIP) mutation to identify functional regions of the A idiomorph and generated RIP mutations generated in a region outside of mt A-1 resulted in the isolation of mutants capable of mating, but deficient in ascospore formation.
Homothallism in the Sordariaceae : Mating-type loci in selected species of Neurospora, Anixiella, and Gelasinospora
TLDR
A molecular analysis of the mating-type loci of selected Sordariaceae homothallics has investigated the degree to which the homothallic A and a genes are similar to those of heterothallic and A-typehomothallic species of Neurospora.
Mating-type genes for classical strain improvements of ascomycetes
  • S. Pöggeler
  • Biology
    Applied Microbiology and Biotechnology
  • 2001
TLDR
How the availability of mating-type sequences allows the investigation of key issues concerning genetic and phylogenetic analyses of fungal species is described.
The mating-type locus ofNeurospora crassa
TLDR
The mating-type locus regulates choice of mating partner and the formation of mixed-mating-type heterokaryons in Neurospora crassa and shows surprising cross-species activity, and are not likely to be primary species barriers within the genusNeurospora.
Mating type in Neurospora and closely related ascomycetes: some current problems
TLDR
Classical genetic analysis outlined the nature of the questions and provided important materials for further work on Neurospora crassa and related ascomycetes, which exist in two mating types, encoded in a unique region of one chromosome.
Positional regulation and evolution of mating type genes in heterothallic and homothallic species of neurospora
TLDR
Homothallic Neurospora species that carry both mating type genes are more closely related to heterothallic species than they are to the ̂ 4-only homothallicspecies, suggesting that either heterothallism species are derived from a homOTHallic ancestor or that homothallist arose twice.
...
...

References

SHOWING 1-10 OF 13 REFERENCES
DNAs of the two mating-type alleles of Neurospora crassa are highly dissimilar.
TLDR
The mating-type alleles A and a of Neurospora crassa control mating in the sexual cycle and function in establishing heterokaryon incompatibility in the vegetative cycle and were shown to encode both the sexual functions and vegetative incompatibility.
Mating-type switching in filamentous ascomycetes.
TLDR
What appears to be a regularly occurring unidirectional reversal of mating type has been described in the filamentous ascomycetes Chromocrea spinulosa, Sclerotinia trgoliorum (UHM and FUJII 1983a,b), and Glomerella cingulata (WHEELER 1950).
A search for complexity at the mating-type locus of Neurospora crassa.
TLDR
Evidence for complexity at the mating-type locus of Neurospora crassa was sought by selecting recombinants between closely linked markers on either side, and results indicate that if subunits exist, they are not more than 0.002 units apart.
Behaviour of Neurospora tetrasperma mating-type genes introgressed into N. crassa.
  • R. Metzenberg, S. Ahlgren
  • Biology
    Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie
  • 1973
TLDR
The two alleles of the mating-type gene of Neurospora tetrasperma have been introgressed into a largely N. crassa genetic background and are no longer able to coexist without inhibition in heterocaryons, nor are they compatible with the latter in partial diploids heterozygous for the mate-type alleles.
CHEMOTROPIC INTERACTIONS BETWEEN TRICHOGYNES AND CONIDIA OF OPPOSITE MATING-TYPE IN NEUROSPORA CRASSA
TLDR
Interactions between living trichogynes emanating from individual protoperithecia formed on a mature mycelium and transplanted conidia taken from a culture of opposite mating- type have been observed microscopically and must be an expression of a function of the mating-type alleles (A, a) in the sexual phase of the life cycle.
Genetic analysis of eight-spored asci produced by gene E in Neurospora tetrasperma.
TLDR
The present analysis of asci heterozygous for E aims to interpret the various segregation patterns and to correlate these patterns with earlier cytological observations to gain a further understanding of the nature of this allele.
Efficient cloning of genes of Neurospora crassa.
TLDR
A genomic library of neurospora crassa DNA in a cosmid vector that contains the dominant selectable marker for benomyl resistance and should be of use in the cloning of any gene of Neurospora, as well as genes of other lower eukaryotes.
NULL MUTANTS OF THE A AND a MATING TYPE ALLELES OF NEUROSPORA CRASSA
Thirty-five null mutants have now been obtained of the A mating type allele, which have simultaneously lost both known functions-heterokaryon incompatibility and sexual compatibility with strains o...
...
...