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The union or introduction of genetic information from compatible mating types that results in a genetically different individual. Conjugation requires direct cellular contact between the organisms. The regular alternation, in the life cycle of haplontic, diplontic and diplohaplontic organisms, of meiosis and fertilization which provides for the production offspring. In diplontic organisms there is a life cycle in which the products of meiosis behave directly as gametes, fusing to form a zygote from which the diploid, or sexually reproductive polyploid, adult organism will develop. In diplohaplontic organisms a haploid phase (gametophyte) exists in the life cycle between meiosis and fertilization (e.g. higher plants, many algae and Fungi); the products of meiosis are spores that develop as haploid individuals from which haploid gametes develop to form a diploid zygote; diplohaplontic organisms show an alternation of haploid and diploid generations. In haplontic organisms meiosis occurs in the zygote, giving rise to four haploid cells (e.g. many algae and protozoa), only the zygote is diploid and this may form a resistant spore, tiding organisms over hard times. The net movement of nuclei towards one another as a prelude to karyogamy in organisms undergoing conjugation with cellular fusion. A biological process that directly contributes to the process of producing new individuals by one or two organisms. The new individuals inherit some proportion of their genetic material from the parent or parents. A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the nucleus. The creation of a single nucleus from multiple nuclei as a result of fusing the lipid bilayers that surround each nuclei. Any process that is carried out at the cellular level, but not necessarily restricted to a single cell. For example, cell communication occurs among more than one cell, but occurs at the cellular level. During sexual reproduction, the creation of a single nucleus from multiple nuclei as a result of fusing the lipid bilayers that surround each nuclei. This occurs after cytogamy. A process, occurring at the cellular level, that is involved in the reproductive function of a multicellular or single-celled organism. The creation of a single organelle from two or more organelles. A conjugation process that results in the union of cellular and genetic information from compatible mating types. An example of this process is found in Saccharomyces cerevisiae.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: karyogamy involved in conjugation with cellular fusion
Acc: GO:0000742
Aspect: Biological Process
Desc: During sexual reproduction, the creation of a single nucleus from multiple nuclei as a result of fusing the lipid bilayers that surround each nuclei. This occurs after cytogamy.
Synonyms:
  • karyogamy during conjugation with cellular fusion
Proteins in PDR annotated with:
   This term: 23 [Search]
   Term or descendants: 33 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0000742 - karyogamy involved in conjugation with cellular fusion (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle