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Gene Ontology Browser
Term Detail
GO term:sexual reproduction
GO id:GO:0019953
Definition:A reproduction process that creates a new organism by combining the genetic material of two organisms. It occurs both in eukaryotes and prokaryotes: in multicellular eukaryotic organisms, an individual is created anew; in prokaryotes, the initial cell has additional or transformed genetic material. In a process called genetic recombination, genetic material (DNA) originating from two different individuals (parents) join up so that homologous sequences are aligned with each other, and this is followed by exchange of genetic information. After the new recombinant chromosome is formed, it is passed on to progeny.
CommentsSexual reproduction may be seen as 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.
Number of paths to term: 3

is-adenotes an 'is-a' relationship
part-ofdenotes a 'part-of' relationship
regulatesdenotes a 'regulates' relationship
positively-regulatesdenotes a 'positively-regulates' relationship
negatively-regulatesdenotes a 'negatively-regulates' relationship


Gene_Ontology
        is-abiological_process
                is-amulti-organism process
                        is-amulti-organism reproductive process
                                is-aembryonic process involved in female pregnancy
                                is-afemale pregnancy +
                                is-ainsemination +
                                is-amating +
                                is-amulti-organism reproductive behavior +
                                is-aparturition +
                                is-apenetration of zona pellucida
                                is-aplantlet formation on parent plant
                                is-apollination +
                                is-aregulation of brood size
                                is-asexual reproduction [GO:0019953] (632 genes, 967 annotations)
                                        is-aconjugation with cellular fusion +
                                        part-offertilization +
                                        part-ofgamete generation +
                                        part-ofmating +
                                        part-ofsexual sporulation +
                                        part-ofsporocarp development involved in sexual reproduction +
                                is-asperm competition +
                                is-asporangium germination on or near host +


Gene_Ontology
        is-abiological_process
                is-areproduction
                        is-aasexual reproduction +
                        part-ofmeiotic cell cycle +
                        is-amulticellular organism reproduction +
                        is-areproduction of a single-celled organism +
                        is-asexual reproduction [GO:0019953] (632 genes, 967 annotations)
                                is-aconjugation with cellular fusion +
                                part-offertilization +
                                part-ofgamete generation +
                                part-ofmating +
                                part-ofsexual sporulation +
                                part-ofsporocarp development involved in sexual reproduction +


Gene_Ontology
        is-abiological_process
                is-areproductive process
                        is-amulti-organism reproductive process
                                is-aembryonic process involved in female pregnancy
                                is-afemale pregnancy +
                                is-ainsemination +
                                is-amating +
                                is-amulti-organism reproductive behavior +
                                is-aparturition +
                                is-apenetration of zona pellucida
                                is-aplantlet formation on parent plant
                                is-apollination +
                                is-aregulation of brood size
                                is-asexual reproduction [GO:0019953] (632 genes, 967 annotations)
                                        is-aconjugation with cellular fusion +
                                        part-offertilization +
                                        part-ofgamete generation +
                                        part-ofmating +
                                        part-ofsexual sporulation +
                                        part-ofsporocarp development involved in sexual reproduction +
                                is-asperm competition +
                                is-asporangium germination on or near host +


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last database update
08/12/2014
MGI 5.19
The Jackson Laboratory