apogamy


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Related to apogamy: apospory

a·pog·a·my

 (ə-pŏg′ə-mē)
n. Botany
The development of an embryo without the occurrence of fertilization.

ap′o·gam′ic (ăp′ə-găm′ĭk), a·pog′a·mous adj.

apogamy

(əˈpɒɡəmɪ)
n
(Botany) a type of reproduction, occurring in some ferns, in which the sporophyte develops from the gametophyte without fusion of gametes
apogamic adj
aˈpogamous adj

a•pog•a•my

(əˈpɒg ə mi)

n.
1. the asexual development of a sporophyte from a cell or cells of the gametophyte other than the egg.
[1875–80]
a•pog′a•mous, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.apogamy - (botany) development of an embryo without fertilization; especially the development in some ferns of a sporophyte from the gametophyte without fertilization
phytology, botany - the branch of biology that studies plants
apomixis - any of several kinds of reproduction without fertilization
References in periodicals archive ?
Influence of tissue culture conditions on apogamy in Dryopteris affinis ssp.
However, the gametophytes usually are incapable of producing sporophytes except by apogamy, which has been observed only rarely in cultures or in populations of V.
Gene expression associated with apogamy commitment in Ceratopteris richardii.
Apogamy ("without gametes") and apospory ("without spores") are, to an extent, misnomers, because in some instances gametes and spores are still produced in the life cycle when these phenomena occur; the chromosome complement of the apogamously tbrmed sporophyte and aposporously produced gametophyte is, however, sometimes other than the usual for these generations (for example, both gametophyte and sporophyte in the life cycle may be found to be diploid).
91) suggested that apogamy and apospory would probably be associated with changes in chromosome number.
The effect of sucrose on apogamy in Cyrtomium falcatum.