Fungal Sex: The Basidiomycota

Coelho, Marco A.; Bakkeren, Guus; Sun, Sheng; Hood, Michael E.; Giraud, Tatiana

doi:10.1128/9781555819583.ch7

Cited by 31 publications

(61 citation statements)

References 194 publications

(244 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The presence and structure of parenthesomes help define taxonomic groups. Mating‐type loci systems can reach extreme levels of sophistication, with many species of mushrooms harbouring thousands of intercompatible mating types (Kothe, ; Brown & Casselton, ; Raudaskoski & Kothe, ; Ni et al ., ; Coelho et al ., ). Many produce a high diversity of fruiting‐body types whose morphologies have had traditional taxonomic value.…”

Section: Dikaryamentioning

confidence: 97%

Fungal evolution: diversity, taxonomy and phylogeny of the Fungi

2019

View full text Add to dashboard Cite

The fungal kingdom comprises a hyperdiverse clade of heterotrophic eukaryotes characterized by the presence of a chitinous cell wall, the loss of phagotrophic capabilities and cell organizations that range from completely unicellular monopolar organisms to highly complex syncitial filaments that may form macroscopic structures. Fungi emerged as a 'Third Kingdom', embracing organisms that were outside the classical dichotomy of animals versus vegetals. The taxonomy of this group has a turbulent history that is only now starting to be settled with the advent of genomics and phylogenomics. We here review the current status of the phylogeny and taxonomy of fungi, providing an overview of the main defined groups. Based on current knowledge, nine phylum-level clades can be defined: Opisthosporidia, Chytridiomycota, Neocallimastigomycota, Blastocladiomycota, Zoopagomycota, Mucoromycota, Glomeromycota, Basidiomycota and Ascomycota. For each group, we discuss their main traits and their diversity, focusing on the evolutionary relationships among the main fungal clades. We also explore the diversity and phylogeny of several groups of uncertain affinities and the main phylogenetic and taxonomical controversies and hypotheses in the field.

show abstract

Section: Dikaryamentioning

confidence: 97%

Fungal evolution: diversity, taxonomy and phylogeny of the Fungi

2019

View full text Add to dashboard Cite

show abstract

“…Basidiomycete fungi possess not only one, but two distinct nonself recognition systems to discriminate mating partners and to assure outbreeding (for recent reviews, see Nieuwenhuis et al ., 2013; Coelho et al ., 2017; Wallen & Perlin, 2018). Among the basidiomycetes, Ustilago maydis , a pathogen of maize, harbors one of the least complex systems.…”

Section: Introductionmentioning

confidence: 99%

Creating novel specificities in a fungal nonself recognition system by single step homologous recombination events

2020

View full text Add to dashboard Cite

In many organisms, two component systems have evolved to discriminate self from nonself. While the molecular function of the two components has been elucidated in several systems, the evolutionary events leading to the large number of different specificities for self-nonself recognition found in most systems remain obscure. We have investigated the variation within a multiallelic nonself recognition system in the phytopathogenic basidiomycete Ustilago maydis by means of sequence analysis and functional studies. The multiallelic b mating type locus of U. maydis ensures outbreeding during sexual development. Nonself recognition is specified by the two homeodomain proteins, bE and bW, encoded by the b locus. While bE-bW combinations from the same allele do not dimerize, bE and bW proteins originating from different alleles form a heterodimeric complex that functions as master regulator for sexual and pathogenic development. We show that novel specificities of the b mating type locus have arisen by single homologous recombination events between distinct b alleles that lead to a simultaneous exchange of subdomains involved in dimerization in both bE and bW, altering the specificity of both proteins in a single step.

show abstract

“…through the loss of the ability to recognise self from non-self in the pheromone/pheromone receptor locus through obtaining pheromone genes that fit one's own receptor. As we find a homolog of the yeast Ste3 receptor on a different linkage group than the HD 4 CHAPTER 4 locus, we hypothesise that this Termitomyces species became bipolar through the second mechanism, similar to what has been found in other species (James et al 2006, Coelho et al 2017).…”

Section: Mating Typesupporting

confidence: 81%

“…has a bipolar mating type. It is thought that the tetrapolar mating system is the ancestral state in basidiomycetes (James et al 2006, Coelho et al 2017. There are two main mechanisms to become bipolar: 1.)…”

Section: Mating Typementioning

confidence: 99%

On conflict and resolution in the termite-fungus symbiosis

Vreeburg¹

View full text Add to dashboard Cite

The asexual spore balls formed by Termitomyces are not the primordia of mushrooms (this thesis). 2. There is no such thing as a standard life cycle for basidiomycete fungi (this thesis) 3. If the outcome of a student's project is vital to her or his supervisor, a conflict of interest is inevitable. 4. Society is the customer of science. 5. Selection for soundbites and catchy headlines in science communication is in conflict with the credibility of science as a whole. 6. The core issue for the acceptance of evolutionary theory is the question whether evolutionary theory applies to humans. 7. Differences in payed parental-leave drive the observed patterns of paternal and maternal childcare. 8. Men in top positions are often not hired for their qualities, but rather because they are men.

show abstract

Fungal Sex: The Basidiomycota

Abstract: Most fungi are able to undergo both asexual and sexual reproduction and have evolved tightly controlled mechanisms to regulate the process of mating, with respect

Cited by 31 publications

References 194 publications

Fungal evolution: diversity, taxonomy and phylogeny of the Fungi

Fungal evolution: diversity, taxonomy and phylogeny of the Fungi

Creating novel specificities in a fungal nonself recognition system by single step homologous recombination events

On conflict and resolution in the termite-fungus symbiosis

Contact Info

Product

Resources

About