Compare the nodes and branches that lead to the monophyletic taxa Basidiomycota and Ascomycota. How do they differ from those leading to Zygomycota and Chytridiomycota? What can be concluded from this?
Fungi composed of an enormous group of organisms, nearly 90,000 species of fungi have been identified. The molecular technique applications combined with morphological as well as ecological considerations have led to an understanding of fungal phylogenetic relationships. Chytridiomycota, Ascomycota, Glomeromycota, Basidiomycota, Zygomycota, and Basidiomycota are considered as the six major fungal groups.
Explanation of Solution
Basidiomycota is filamentous fungi made of the hypha. In general, they reproduce sexually by the formation of specialized club-shaped cells, called basidia. Whereas Ascomycota, sac fungi, are filamentous fungi that reproduce sexually by means of the ascus,
Chytridiomycota and Zygomycota are situated at multiple nodes, whereas Ascomycetes and Basidiomycetes are located only at one node. From this, it can be concluded that the former (Chytridiomycota and Zygomycota) are paraphyletic (multiple origins), whereas the latter (Ascomycetes and Basidiomycetes) are monophyletic (one common ancestor).
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Chapter 26 Solutions
Prescott's Microbiology
- Differentiate between the Ascomycota and the Basidiomycota in terms of the cells that produce spores and the spores produced. Differentiate between a cleistothecium, apothecium, and perithecium/pseudothecium. Differentiate among the main groups for basidiomycetes in the Friesian system: the Agaricaceae, Boletaceae, Cantharellaceae, Hydnaceae, Clavariaceae, Thelephoraceae, Polyporaceae, Gasteromycetes, and Jelly fungi.Identify members of the categories in Matchmaker: Gilled, Boletes, Polypores, Toothed, Veined, Morels etc., Cups, Bird's Nest, Corals Clubs, Jelly Fungi, Crusts, Puffballs, Truffles, and Other.arrow_forwardWhat are the differences between ascomycota and basidiomycota? Give 2 basis for differentiationarrow_forwardCreate a terminal (final) “couplet” for a dichotomous key that could be used to differentiate Ascomycota from Basidiomycota based on their sexual reproductive structures.arrow_forward
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- For Ascomycota, what structure's function is most similar to the function of a mushroom? a.) Ascus b.) Ascocarp c.) Antheridium d.) Archegonium e.) Ascosporearrow_forwardWhat is heterospory? Briefly comment on its significance. Give two examples.arrow_forwardPlace the following events of the SEXUAL lifecycle of a Basidiomycota in chronological order from a spore landing on a substrate through the production of a spore.Basidiospore lands on a substrate Options: plasmogamy, heterokaryotic hyphae/mycelium, meiosis, heterokaryotic fruiting body, karyogamy within a basidium, haploid hyphaearrow_forward
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