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Article

The mating-type chromosome in the filamentous ascomycete Neurospora tetrasperma represents a model for early evolution of sex chromosomes.

PLoS genetics - 14 Mar 2008

Menkis Audrius, Jacobson David J, Gustafsson Tim, Johannesson Hanna

Abstract excerpt

We combined gene divergence data, classical genetics, and phylogenetics to study the evolution of the mating-type chromosome in the filamentous ascomycete Neurospora tetrasperma. In this species, a large non-recombining region of the mating-type chromosome is associated with a unique fungal life cycle where self-fertility is enforced by maintenance of a constant state of heterokaryosis. Sequence divergence...

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Identifiers

PMID: 18369449
DOI: 10.1371/journal.pgen.1000030
PMCID: PMC2268244

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The mating-type chromosome in the filamentous ascomycete Neurospora tetrasperma represents a model for early evolution of sex chromosomes.PMID 18369449Read ↗

Gene genealogies indicates abundant gene conversions and independent evolutionary histories of the mating-type chromosomes in the evolutionary history of Neurospora tetrasperma.Semantic proximity Read ↗

Introgression maintains the genetic integrity of the mating-type determining chromosome of the fungus Neurospora tetrasperma.Semantic proximity Read ↗

A global multilocus analysis of the model fungus Neurospora reveals a single recent origin of a novel genetic system.Semantic proximity Read ↗

Evidence of the accumulation of allele-specific non-synonymous substitutions in the young region of recombination suppression within the mating-type chromosomes of Neurospora tetrasperma.Semantic proximity Read ↗

Sex-linked transcriptional divergence in the hermaphrodite fungus Neurospora tetrasperma.Semantic proximity Read ↗

Large-scale introgression shapes the evolution of the mating-type chromosomes of the filamentous ascomycete Neurospora tetrasperma.Semantic proximity Read ↗

Ancestral polymorphism and linkage disequilibrium at the het-6 region in pseudohomothallic Neurospora tetrasperma.Semantic proximity Read ↗

Degeneration in codon usage within the region of suppressed recombination in the mating-type chromosomes of Neurospora tetrasperma.Semantic proximity Read ↗

Allelic diversity at the het-c locus in Neurospora tetrasperma confirms outcrossing in nature and reveals an evolutionary dilemma for pseudohomothallic ascomycetes.Semantic proximity Read ↗

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