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Genetics. 2009 Aug;182(4):1391-6. doi: 10.1534/genetics.109.103192. Epub 2009 May 17.

Evolutionary strata in a small mating-type-specific region of the smut fungus Microbotryum violaceum.

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  • 1Department of Plant Sciences, University of Oxford, South Parks Rd., OX1 3RB, United Kingdom.


DNA sequence analysis and genetic mapping of loci from mating-type-specific chromosomes of the smut fungus Microbotryum violaceum demonstrated that the nonrecombining mating-type-specific region in this species comprises approximately 25% ( approximately 1 Mb) of the chromosome length. Divergence between homologous mating-type-linked genes in this region varies between 0 and 8.6%, resembling the evolutionary strata of vertebrate and plant sex chromosomes.

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