apomixis


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Related to apomixis: agamospermy

apomixis

(ăp′ə-mĭk′sĭs)
n.
The development of an embryo without the occurrence of fertilization, especially in plants.

apomixis

the development of an embryo in plants without FERTILIZATION or MEIOSIS. This method of pseudosexual reproduction is regularly used in plants such as garlic and the citruses. Similar processes occur in animals, where the term used is PARTHENOGENESIS. See also APOSPORY, APOGAMY and AGAMOSPERMY.
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References in periodicals archive ?
Fruit set was high in all pollination tests performed in Dorstenia bonijesu (> 69%; Table 1), including the apomixis one.
Quantitative RT-PCR analysis showed that MSI1 gene is an apomixis related gene in Taraxacum and express at full-bloom flowering stage.
Other plants, especially weeds such as hawkweed and dandelions, can produce true seeds that are clones of themselves without sexual reproduction -- a still poorly understood process called apomixis.
This reduction in parental legacy has been termed the cost of meiosis (Williams, 1975) and can be avoided by selfing via self-fertilization, the fusion of gametes from the same individual; by automixis, the activation of a meiotically divided cell (see Mogie, 1986); or by apomixis, a process particular to angiosperms and gymnosperms where seeds form without the need of meiosis and fertilization (see Bicknell and Koltunow, 2004).
Other key topics include reproduction, renewal, propagation, amphimixis, apomixis, reproductive effort, reproductive success, potential seed productivity, and real seed productivity.
(109) The research on apomixis conducted by the International Maize and Wheat Improvement Center (known by its Spanish acronym CIMMYT), one of the CGIAR Future Harvest Centers, provides an example of this gradual shift.
Barring apomixis, the only explanation is that I accidentally disrupted an anther sac in the process of removing a stamen from the flower.