autogamy
/ɔ:'tɔgemi/
Definition
- Noun:
- Self-fertilization in plants: The process in which a plant's ovum is fertilized by its own pollen, without the involvement of another individual. This is a form of reproduction within a single flower or hermaphroditic organism.
Usage Examples
- Noun:
- Some plant species rely on autogamy to reproduce when pollinators are scarce.
- The botanist studied the genetic implications of autogamy in the isolated population.
Advanced Usage
"Obligate autogamy": A reproductive strategy where a species is exclusively self-fertilizing.
- The species exhibits obligate autogamy, which limits its genetic diversity.
"Facultative autogamy": The ability of a plant to self-fertilize but also capable of outcrossing.
- The flower is capable of facultative autogamy, ensuring seed set even in the absence of cross-pollination.
Variants and Related Words
Autogamous (adj): Relating to or characterized by autogamy.
- The autogamous nature of the flower ensures consistent seed production.
Geitonogamy (n): A related form of self-fertilization where pollen is transferred between different flowers on the same plant.
- While not strictly autogamy, geitonogamy is another form of self-pollination.
Synonyms
- Self-pollination: The transfer of pollen from the anther to the stigma of the same flower or another flower on the same plant.
- Self-fertilization: The fusion of male and female gametes from the same individual.
Antonyms
- Allogamy: Cross-fertilization; fertilization involving gametes from different individuals.
- Xenogamy: Cross-pollination between flowers of different plants.
Noun
-
self-fertilization in plants
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