12 Asexual Sporulation in Agaricomycetes

Kües, Ursula; Badalyan, Susanna M.; Gießler, Alexander; Dörnte, Bastian

doi:10.1007/978-3-319-25844-7_12

Cited by 14 publications

(14 citation statements)

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“…17,52 It seems likely that they serve the purpose of survival structures such as chlamydospores or sclerotia that are found in a wide array of Basidiomycota. 22,53 According to our hypothesis, the niche provided by the termites for the ancestor of Termitomyces was the pre-digested plant material in the ancestral comb. Besides mineral nutrients obtained from consuming the fungus, the termites could also benefit from the increase in available calories of the comb as a result of fungal degradation and the oligosaccharides left behind by the fungus.…”

Section: Llmentioning

confidence: 93%

“…While all mushroom-forming fungi produce sexual spores (basidiospores) for reproduction, only some species produce asexual spores (conidia), either on the mycelium or in rare cases on the mushroom. 22 However, several species in the termitomycetoid clade produce conidia (Figure 1). In species of Termitomyces only the mycelium produces conidia 23 (Figures 3A-3D), which are ingested by the termites and mixed in the gut to inoculate fresh fungus combs.…”

Section: Conidial Production Predates Domesticationmentioning

confidence: 99%

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Ancestral predisposition toward a domesticated lifestyle in the termite-cultivated fungus Termitomyces

et al. 2021

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Ancestral predisposition toward a domesticated lifestyle in the termite-cultivated fungus Termitomyces Highlights d Insect-fecal associations predate the domestication of Termitomyces fungi d A set of morphological traits predisposed lyophylloid fungi toward domestication d Insect-associated lyophylloid fungi have reduced plantdegrading capabilities d This symbiosis may have been facilitated by pre-adaptation of both partners

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Section: Llmentioning

confidence: 93%

Section: Conidial Production Predates Domesticationmentioning

confidence: 99%

Ancestral predisposition toward a domesticated lifestyle in the termite-cultivated fungus Termitomyces

et al. 2021

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“…In a context in which sequence conservation does not correlate with conservation of the same cellular function, and new TFs controlling development emerge as the different fungal orders, families, genera and probably even species themselves differentiate implies that broading the search for mutants impaired in asexual development is necessary in as many reference systems as possible. Thus, mutant screenings such as the one carried out in B. cinerea for the identification of light induced TFs (Cohrs et al, 2016;Schumacher, 2017;Brandhoff et al, 2017) or the identification and characterization of proteins controlling asexual sporulation in agaricomycetes (reviewed by (Kües et al, 2016)) serve as examples and must be acknowledged. Overall, these examples suggest that the application of known activities and relationships of developmental regulators from one model to related species cannot be treated as a given, and may misdirect research.…”

Section: Discussionmentioning

confidence: 99%

Rewiring of transcriptional networks as a major event leading to the diversity of asexual multicellularity in fungi

Etxebeste

Otamendi

Garzia

et al. 2019

Critical Reviews in Microbiology

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Complex multicellularity (CM) is characterized by the generation of threedimensional structures that follow a genetically controlled program. CM emerged at least five times in evolution, one of them in fungi. There are two types of CM programs in fungi, leading, respectively, to the formation of sexual or asexual spores. Asexual spores foment the spread of mycoses, as they are the main vehicle for dispersion. In spite of this key dependence, there is great morphological diversity of asexual multicellular structures in fungi. To advance the understanding of the mechanisms that control initiation and progression of asexual CM and how they can lead to such a remarkable morphological diversification, we compiled 500 fungal proteomes, representing all phyla and subphyla, and most known classes. Conservation analyses of 32 regulators of asexual development suggest stepwise emergence of transcription factors. While velvet proteins constitute one of the most ancient systems, the central regulator BrlA emerged late in evolution (with the class eurotiomycetes). Some factors, such as MoConX4, seem to be species-specific. These observations suggest that the emergence and evolution of transcriptional regulators rewire pre-existing transcriptional networks. This process could reach the species level, resulting in a vast diversity of morphologies.

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“…In a context in which sequence conservation does not correlate with conservation of the same cellular function, and new TFs controlling development emerge as the different fungal orders, families, genera and probably even species themselves differentiate implies that broadening the search for mutants impaired in asexual development is necessary in as many reference systems as possible. Thus, mutant screenings such as the one carried out in B. cinerea for the identification of light induced TFs (Cohrs et al 2016;Schumacher 2017;Brandhoff et al 2017) or the identification and characterization of proteins controlling asexual sporulation in agaricomycetes (reviewed by (Kües et al 2016)) serve as examples and must be acknowledged. Overall, these examples suggest that the application of known activities and relationships of developmental regulators from one model to related species cannot be treated as a given, and may misdirect research.…”

Section: Most Of Thesementioning

confidence: 99%

Rewiring of transcriptional networks as a major event leading to the diversity of asexual multicellularity in fungi

Etxebeste

Otamendi

Garzia

et al. 2019

Preprint

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Complex multicellularity (CM) is characterized by the generation of threedimensional structures that follow a genetically controlled program. CM emerged at least five times in evolution, one of them in fungi. There are two types of CM programs in fungi, leading, respectively, to the formation of sexual or asexual spores. Asexual spores foment the spread of mycoses, as they are the main vehicle for dispersion. In spite of this key dependence, there is great morphological diversity of asexual multicellular structures in fungi. To advance the understanding of the mechanisms that control initiation and progression of asexual CM and how they can lead to such a remarkable morphological diversification, we studied 503 fungal proteomes, representing all phyla and subphyla, and most known classes. Conservation analyses of 33 regulators of asexual development suggest stepwise emergence of transcription factors. While velvet proteins constitute one of the most ancient systems, the central regulator BrlA emerged late in evolution (with the class eurotiomycetes). Some factors, such as MoConX4, seem to be species-specific. These observations suggest that the emergence and evolution of transcriptional regulators rewire transcriptional networks. This process could reach the species level, resulting in a vast diversity of morphologies.

show abstract

12 Asexual Sporulation in Agaricomycetes

Cited by 14 publications

References 293 publications

Ancestral predisposition toward a domesticated lifestyle in the termite-cultivated fungus Termitomyces

Ancestral predisposition toward a domesticated lifestyle in the termite-cultivated fungus Termitomyces

Rewiring of transcriptional networks as a major event leading to the diversity of asexual multicellularity in fungi

Rewiring of transcriptional networks as a major event leading to the diversity of asexual multicellularity in fungi

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