autogamy


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Related to autogamy: Geitonogamy

au·tog·a·my

(aw-tog'ă-mē),
A form of self-fertilization in which fission of the cell nucleus occurs without division of the cell, the two pronuclei so formed reuniting to form the synkaryon; in other cases, the cell body also divides, but the two daughter cells immediately conjugate.
Synonym(s): automixis
[auto- + G. gamos, marriage]

autogamy

(ô-tŏg′ə-mē)
n.
Self-fertilization, especially:
a. Fertilization of a flower by its own pollen.
b. The union of nuclei within and arising from a single cell, as in certain protozoans and fungi.

au′to·gam′ic (ô′tō-găm′ĭk), au·tog′a·mous adj.

au·tog·a·my

(aw-tog'ă-mē)
A form of self-fertilization in which fission of the cell nucleus occurs without division of the cell, the two pronuclei so formed reuniting to form the synkaryon; in other cases, the cell body also divides, but the two daughter cells immediately conjugate.
[auto- + G. gamos, marriage]

autogamy

Self-fertilization. This can occur by the fusion of two split nuclei.

autogamy

  1. the process by which the two parts of a divided cell nucleus reunite, as in some protozoans.
  2. self-fertilization in plants.
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References in periodicals archive ?
t 0.50 0.64 0.32 0.56 SE 0.071 0.076 0.146 0.021 [S.sub.1] 0.50 0.36 0.68 0.44 v 0.914 0.949 1.02 0.850 [S.sub.0] 0.52 0.37 0.69 0.49 Autogamy of 0.255 0.408 0.468 0.464 progeny plants 0.016 0.028 0.033 0.021 RESULTS
In the other Wahlenbergia species of the archipelago, autogamy occurs at the end of the flower lifetime, when the stigmata branches recurve almost 360[degrees] and contact pollen held on the style.
The shift from xenogamy to autogamy was more pronounced than the shift from autogamy to xenogamy.
Although AG-S4 was derived from MU81, autogamy is an unusual reproductive expression within this typically self-incompatible species.
A comparable shift from allogamy to autogamy was achieved in Vitis (grape): Wild species and some primitive cultivars (dioecious) are cross-pollinators, whereas more modern cultivars (hermaphrodite) are self-pollinating (Olmo, 1995).
Using anther-stigma distance as a proxy for degree of autogamy, I concluded that 7 taxa are predominantly autogamous, 8 taxa are predominantly allogamous, and 20 taxa have intermediate mating systems.
AUTOGAMY A Solitary B Self-taught C Self-fertilisation who am I?
In epiphytic plants, autogamy has been interpreted as a mechanism to compensate for their apparent reduced capacity to attract pollinators due to their low floral display and highly aggregated spatial distribution in the forest canopy (Bush & Beach, 1995).
Br.: Taxonomy, phytogcography, autogamy and myxospcrmy.
Types of crosses included: (1) no hand-pollination to test for automatic self-pollination (autogamy).
Autogamy might be favored through their contacts with the reproduc tive structures of a single flower, with occasional transfers of autogamic pollen.