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Self-fertilization

Biology Selective serotonin reuptake inhibitorSelf-incompatibility

self-fertilization
fertilization of an egg by a sperm from the same individual
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...

 


self-fertilization
The union of egg and sperm produced by a single hermaphroditic organism.
self-pollination ...

Self-fertilization (also known as autogamy) occurs in hermaphroditic organisms where the two gametes fused in fertilization come from the same individual. They are bound and all the cells merge to form one new gamete.
Mitosis and Meiosis ...

Selfing
Self-fertilization of an organism. Cf. crossing.
Crossing
Fertilization of an organism from an other organism with a different genetic constitution. Cf. Selfing.

Usually, self-fertilization does not occur. Also called synchronous hermaphrodites. Examples: Earthworms.

true-breeding Occurs when self-fertilization gives rise to the same traits in all offspring, generation after generation. Now interpreted as equivalent to homozygous.

Self-incompatibility
Lack of fertility within an individual, inability of self-fertilization.
In plants the trait self-incompatibility is often inhertited by a single gene (S) with different alleles (e.g. S1, S2).

Self-incompatibility
Most angiosperms have mechanisms by which they avoid self-fertilization. Link to a discussion of these.
Seeds
After double fertilization, each ovule develops into a seed, which consists of ...

open pollinated SF A method of seed generation in which natural self-fertilization is allowed to take place. Both the pollen donor and egg donor are from the plant.

protandry The condition in a monoecious organism in which male gonads mature before female gametes; prevents self-fertilization.
protease An enzyme that digests proteins; includes proteinases and peptidases.

See also: Fertilization, Plant, Organ, Trait, Species