karyogamy

(noun)

the fusion of two nuclei within a cell

Related Terms

Examples of karyogamy in the following topics:

  • Zygomycota: The Conjugated Fungi

    • Two opposing mating strains (type + and type –) must be in close proximity for gametangia (singular: gametangium) from the hyphae to be produced and fuse, leading to karyogamy .

  • Ascomycota: The Sac Fungi

    • In each ascus, two or more haploid ascospores fuse their nuclei in karyogamy.

  • Fungi Reproduction

    • During karyogamy ("nuclear marriage"), the haploid nuclei fuse to form a diploid zygote nucleus.

  • Basidiomycota: The Club Fungi

    • In the basidium, nuclei of two different mating strains fuse (karyogamy), giving rise to a diploid zygote that then undergoes meiosis.