ArticleGenetics2015
Recent and massive expansion of the mating-type-specific region in the smut fungus Microbotryum.
Article in Genetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 20 citations in OpenAlex.
- Occurrence and possible roles of polysaccharides in fungi and their influence on the development of new technologies.Carbohydrate polymers · 2020Review
- Article
- Convergent evolution of linked mating-type loci in basidiomycete fungi.PLoS genetics · 2019Article
- Gene Presence-Absence Polymorphism in Castrating Anther-Smut Fungi: Recent Gene Gains and Phylogeographic Structure.Genome biology and evolution · 2018Article
- Evolutionary strata on young mating-type chromosomes despite the lack of sexual antagonism.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- Deciphering evolutionary strata on plant sex chromosomes and fungal mating-type chromosomes through compositional segmentation.Plant molecular biology · 2016Article
- Evolution of sexual reproduction: a view from the Fungal Kingdom supports an evolutionary epoch with sex before sexes.Fungal biology reviews · 2015Article
- Contrasted patterns in mating-type chromosomes in fungi: hotspots versus coldspots of recombination.Fungal biology reviews · 2015Article
- Article
- Chaos of Rearrangements in the Mating-Type Chromosomes of the Anther-Smut Fungus Microbotryum lychnidis-dioicae.Genetics · 2015Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
The presence of large genomic regions with suppressed recombination (SR) is a key shared property of some sex- and mating-type determining (mat) chromosomes identified to date in animals, plants, and fungi. Why such regions form and how they evolve remain central questions in evolutionary genetics. The smut fungus Microbotryum lychnis-dioicae is a basidiomycete fungus in which dimorphic mat chromosomes have been reported, but the size, age, and evolutionary dynamics of the SR region remains unresolved. To identify the SR region in M. lychnis-dioicae and to study its evolution, we sequenced 12 genomes (6 per mating type) of this species and identified the genomic contigs that show fixed sequence differences between the mating types. We report that the SR region spans more than half of the mat chromosome (>2.3 Mbp) and that it is of very recent origin (∼2 × 10(6) years) as the average sequence divergence between mating types was only 2% in the SR region. This contrasts with a much higher divergence in and around the mating-type determining pheromone receptor locus in the SR, suggesting a recent and massive expansion of the SR region. Our results comprise the first reported case of recent massive SR expansion documented in a basidiomycete fungus.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.