Neurospora mating type symbol mt revised to mat
نویسندگان
چکیده
منابع مشابه
Directed replacement of mt A by mt a-1 effects a mating type switch in Neurospora crassa.
To test the functions of a mating type genes, we developed an efficient strategy to select transformants of Neurospora crassa in which resident A mating type DNA was replaced by cloned DNA from the mt a idiomorph. Cloned a idiomorphic DNA could specify all functions, including fertility, of a mating type, but only when it replaced A DNA at the mating type locus. Only the mt a-1 region of the a ...
متن کاملNeurospora crassa a mating-type region.
The a mating-type region of Neurospora crassa controls several major events in both the sexual and asexual phases of the fungal life cycle. This 3235-base-pair DNA segment is not homologous to the comparable genetic region of the A mating type. The unique a and A regions are bordered by nearly identical DNA sequences. The a genetic region contains at least two functional segments. One segment e...
متن کاملMating-type genes and MAT switching in Saccharomyces cerevisiae.
Mating type in Saccharomyces cerevisiae is determined by two nonhomologous alleles, MATa and MATα. These sequences encode regulators of the two different haploid mating types and of the diploids formed by their conjugation. Analysis of the MATa1, MATα1, and MATα2 alleles provided one of the earliest models of cell-type specification by transcriptional activators and repressors. Remarkably, homo...
متن کاملMutations of the a Mating-Type Gene in NEUROSPORA CRASSA.
In Neurospora, the mating-type locus controls both mating ( A + a is fertile) and heterokaryosis (A + a is incompatible). The two alleles appear stable: no novel fertility reactions have ever been reported, and attempts to separate fertility and heterokaryon incompatibility functions by recombination have been unsuccessful. In the present approach the locus was studied through a mutational anal...
متن کاملHealing of mat mutations and control of mating type interconversion by the mating type locus in Saccharomyces cerevisiae.
Homothallic yeasts switch cell types (mating types a and alpha) at high frequency by changing the alleles of the mating type locus, MATa and MATalpha. We have proposed in the cassette model that yeast cells contain silent MATa and MATalpha blocs ("cassettes"), copies of which can be substituted at the mating type locus for the resident information. The existence of silent cassettes was original...
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ژورنال
عنوان ژورنال: Fungal Genetics Reports
سال: 1997
ISSN: 1941-4765
DOI: 10.4148/1941-4765.1292