apogamy


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Related to apogamy: apospory

par·the·no·gen·e·sis

(par'the-nō-jen'ĕ-sis),
A form of nonsexual reproduction, or agamogenesis, in which the female reproduces its kind without fecundation by the male.
[G. parthenos, virgin, + genesis, product]

apogamy

a form of asexual reproduction found in ferns where the GAMETOPHYTE, which is diploid, gives rise directly to the SPOROPHYTE.
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References in periodicals archive ?
Apogamy is a very common phenomenon in the ferns (Dyer et al.
Thus, apogamy could be one of these prominent adaptive elements: it has been proved to be inherited and to give apogamous derivatives a wider range in nature (Morzenti 1969, Liu et al.
Sometimes, apogamy with formation of gametangia has been documented (Migliaro & Gabriel y Galan 2012), and has been said to be facultative/induced, i.e., the plant could either experience sexual contacts or, due to some external facts, produce apogamous sporophytes; however, some apogamous ferns are known to produce no gametangia at all, or gametangia failed to produce viable, normal gametes, so the apogamy is obligated (Raghavan 1989).
Exogenous and endogenous growth regulators on apogamy in Dryopteris affinis (Lowe) Fraser-Jenkins sp.