gynogenesis

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Related to gynogenetic: automixis, Hybridogenesis

gynogenesis

 [gi″no-] , [jin″o-jen´ĕ-sis]
development of an egg that is stimulated by a sperm in the absence of any participation of the sperm nucleus.

gy·no·gen·e·sis

(gī'nō-jen'ĕ-sis, jin-ō-),
Oocyte development activated by a sperm, but to which the male gamete contributes no genetic material.
[gyno- + G. genesis, production]

gynogenesis

(gī′nə-jĕn′ĭ-sĭs, jĭn′ə-)
n.
Parthenogenesis in which the egg is activated by sperm, but without fusion of the egg and sperm nuclei.

gy′no·ge·net′ic (-jə-nĕt′ĭk) adj.

gy·no·gen·e·sis

(gī'nō-jen'ĕ-sis)
Oocyte development activated by a sperm, but to which the male gamete contributes no genetic material.
[gyno- + G. genesis, production]

gynogenesis

the parthenogenetic development of an egg after the egg membranes have been penetrated by a male gamete. There is no nuclear fusion and stimulation of development might be purely mechanical.

gynogenesis

development of an egg that is stimulated by a sperm in the absence of any participation of the sperm nucleus.
References in periodicals archive ?
One serious drawback of gynogenetic catfish reproduction has been that all of the offspring produced are females.
These females produce both male and female gynogenetic offspring, thus allowing crossbreeding to occur within and among gynogenetic lines.
An added bonus is that gynogenetic males, when mated with normal females, produce only male offspring.
We are currently conducting studies to optimize sperm irradiation and the timing of egg shock treatments, to improve our yields of gynogenetic offspring," she says.
The second group was the gynogenetic haploid group (G-n group), in which eggs fertilized by inactivated sperms were allowed to develop to haploids without further treatment.
In gynogenetic groups, sperms were exposed to 75 sec UV irradiation based on the results of earlier experiment.
UV has been used to inactivate sperm chromosomes for gynogenetic induction in many species of molluscs.
1] was used in the production of gynogenetic diploids in this study.
CB is the most commonly used to induce "chromosome-doubling" for induction of triploids and gynogenetic diploids in molluscs (e.
Triploids, tetraploids, and aneuploids produced in the gynogenetic diploid group were reported also for the Pacific oyster (Guo et al.