self-fertilization


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to self-fertilization: cross-fertilization

self-fer·til·i·za·tion

(self'fer'til-i-zā'shŭn),
Fecundation of the ovules by the pollen of the same flower, or of the ova by the spermatozoa of the same animal in hermaphroditic forms; denoting an extreme type of inbreeding seen in certain plants and animal forms that produce both male and female gametes.

self-fertilization

(sĕlf′fûr′tl-ĭ-zā′shən)
n.
Fertilization by male gametes from the same individual, as by sperm from the same animal in hermaphroditic species or by pollen from the same plant.

self′-fer′til·ized′ (-īzd′) adj.
self′-fer′til·iz′ing adj.

self-fertilization

the fusion of male and female GAMETES from the same HERMAPHRODITE individual. Self-fertilization is fairly rare in animals (occurring, for example, in some snails and nematode worms) but is common in some plant groups. see SELF-POLLINATION. Compare CROSS-FERTILIZATION.
References in periodicals archive ?
It is not certain, however, what degree of self-fertilization occurs in nature.
However, offspring produced through self-fertilization inherit the DNA of their single parent, thus any parasites adapted to infect the parent also should be capable of infecting the offspring.
Because in the wind treatment, autonomous self-fertilization and, in the diurnal and nocturnal treatments, both wind and autonomous self-fertilization were not prevented, we calculated net production of achenes for each vector of pollen (diurnal visitors, nocturnal visitors, wind, and autonomous self-fertilization) in the following way (Table 1): net production of achenes due to wind ([A.
In the hermaphroditic scallop Argopecten purpuratus, no differences in survival or growth were found between families produced by self-fertilization and pair mating at either the larval or juvenile stages (Winkler & Estevez 2003).
The variation in self-fertilization rate was attributed to the amount of eggs being liberated at the time of collection.
Similar results have previously been obtained by comparing pair-crosses between the two stocks with their self-fertilization in this species (Zheng et al.
In the June 13 Nature, the scientists conclude that the handedness in flower orientation does indeed reduce self-fertilization.
Finally, there is the question whether the reproduction of the two triploid Corbicula species involves self-fertilization, cross-fertilization, or parthenogenesis.
Scientists had observed that polyploidy can permit self-fertilization.
Sakai cautions that she was not able to perform all the standard experiments that nail down pollination details, such as excluding insects from blossoms to check for self-fertilization.
Scientists studying the genes that help some kinds of mustard plants avoid self-fertilization have new evidence that at least one of those genes helps form the shape of the much-studied Arabidopsis, also of the mustard family.
Botanists have struggled to piece together how some plants avoid self-fertilization -- and the loss of genetic diversity that goes hand-in-hand with it -- ever since Charles Darwin noticed that some plants can fertilize themselves while others cannot.