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Life cycle of a club fungus having two mating strains of hyphae
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Description
1. Cytoplasmic fusion
2. After cytoplasmic fusion, cells of the mycelium are dikaryotic (\(n+n\)). Spore-bearing mushrooms form from this mycelium.
3. Club-shaped cells, each dikaryotic (\(n+n\)),form at the margins of mushroom gills.
4. The end club-shaped cell becomes a diploid (\(2n\)) zygote when its two nuclei fuse.
5. After nuclear fusion, the \(2n\) cell undergoes meiosis and bears four haploid spores at its tips.
6. Spores are released, germinate, and give rise to a haploid mycelium.
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