autogamy


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Related to autogamy: Geitonogamy

au·tog·a·my

 (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.

autogamy

(ɔːˈtɒɡəmɪ)
n
1. (Botany) self-fertilization in flowering plants
2. (Biology) a type of sexual reproduction, occurring in some protozoans, in which the uniting gametes are derived from the same cell
auˈtogamous, autogamic adj

au•tog•a•my

(ɔˈtɒg ə mi)

n.
1. pollination of the ovules of a flower by its own pollen; self-fertilization (opposed to allogamy).
2. conjugation in an individual organism by division of its nucleus into two parts that in turn reunite to form a zygote.
[1875–80]
au•tog′a•mous, au•to•gam•ic (ˌɔ toʊˈgæm ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.autogamy - self-fertilization in plants
self-fertilisation, self-fertilization - fertilization by the union of male and female gametes from the same individual
allogamy - cross-fertilization in plants
Translations
References in periodicals archive ?
Any accession that exhibited autogamy or which did not have L.
lepidus is capable of autogamy (in the presence of wind agitation) and a pollen addition experiment in 1991 provided no evidence for pollen limitation (J.
The final three traits, corolla length, flower width, and stigma-anther separation, were measured because they are likely to be important in the attraction of pollinators and in the probability of autogamy. Stigma-anther separation is correlated with autogamy rates across several taxa of Mimulus (Ritland and Ritland 1989), and an overall reduction in flower size is a common feature of selfing Mimulus species that are believed to be recently derived from outcrossing taxa (e.g., Macnair and Cumbes 1989; Ritland and Ritland 1989).
Autogamy was recorded only among species of Tillandsia subgenus Diaphoranthema, characterized by neotenic species with a tendency toward polyploidy (Till, 1992).
[2] through [5] allow the estimation of [N.sub.e(v)] for species with a given rate s and can be extended to the extreme cases of panmixia (s = 0) or complete autogamy (s = 1).
Although flowers set fruit following experimental pollination with pollen from the same individual (and are thus considered self-compatible; Munoz and Devesa 1987), autogamy (i.e., within-flower pollination) rarely occurs in nature because of marked protandry.
The second plant was retained in case the first plant died, and to provide a second estimate of the autogamy rate within each family.
10B) may have changed from insect pollinated to pure autogamy, but autogamy is not uncommon in this genus, so this failsafe system may even have facilitated establishment of colonizers.
Two of the five [F.sub.1] hybrids, HG276-7 (hybrid of G31276 [is greater than](AG-S4) and HG31721 (hybrid of G31317) [is less than] AG-S4), were chosen to produce [F.sub.2] seed without manipulation of flowers, i.e., by autogamy. Backcross (BC) generations were obtained by crossing HG276-7 and HG317-21 to their respective parents to produc BC-R ([F.sub.1] hybrids )[is less than] Moroccan parent, where R designates a rhizomatous parent) and BC-NR ([F.sub.1] hybrids ) [is less than] AG-S4, where NR designates a nonrhizomatous parent) generations.
drummondii, Salmon Beauty, to selection for increased and decreased autogamy. We specifically address the following questions: (1) To what extent can the self-compatible and self-incompatible breeding systems of the two wild species be altered by two cycles of artificial selection?
Early maturity, small flowers and autogamy: A developmental connection?