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Self-pollination is a form of pollination in which pollen arrives at the stigma of a flower (in flowering plants) or at the ovule (in gymnosperms) of the same plant. The term cross-pollination is used for the opposite case, where pollen from one plant moves to a different plant.
Self-pollination is promoted by homogamy. Homogamy is when the anthers and the stigma of a flower are being matured at the same time. [5] The action of self-pollination guides the plant to homozygosity, causing a specific gene to be received from each of the parents leading to the possession of two exact formats of that gene. [6]
Self-pollination is an example of autogamy that occurs in flowering plants. Self-pollination occurs when the sperm in the pollen from the stamen of a plant goes to the carpels of that same plant and fertilizes the egg cell present. Self-pollination can either be done completely autogamously or geitonogamously. In the former, the egg and sperm ...
Self-pollination can be prevented by both physical and temporal mechanisms that have evolved in response to the interactions with pollen vectors; these mechanisms make cross-pollination easier to accomplish by lowering the chances of self-pollination. For example, dichogamy, which is the temporal differentiation in the ripening of sexual organs ...
Self-pollination occurs when pollen from one flower pollinates the same flower or other flowers of the same individual. [45] It is thought to have evolved under conditions when pollinators were not reliable vectors for pollen transport, and is most often seen in short-lived annual species and plants that colonize new locations. [ 46 ]
Pollen in plants is used for transferring haploid male genetic material from the anther of a single flower to the stigma of another in cross-pollination. [2] In a case of self-pollination, this process takes place from the anther of a flower to the stigma of the same flower. [2] Pollen is infrequently used as food and food supplement. Because ...
Geitonogamy is when pollen is exported using a vector (pollinator or wind) out of one flower but only to another flower on the same plant. It is a form of self-fertilization. In flowering plants , pollen is transferred from a flower to another flower on the same plant, and in animal pollinated systems this is accomplished by a pollinator ...
Selfing syndrome refers to plants that are autogamous and display a complex of characteristics associated with self-pollination. [1] The term was first coined by Adrien Sicard and Michael Lenhard in 2011, but was first described in detail by Charles Darwin in his book “The Effects of Cross and Self Fertilisation in the Vegetable Kingdom” (1876), making note that the flowers of self ...