apomixis

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apomixis

(ăp′ə-mĭk′sĭs)

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 ?

Agronomic characters of all progenies obtained from the crosses between sexual accessions S10 and S12 and apomictic cultivars Mombaca and Tanzania were statistically different (Table 1).

Genotypic value in hybrid progenies of Panicum maximum Jacq./Valor genotipico de progenies hibridas de Panicum maximum Jacq

Apomictic plants are almost polyploidy with high heterozygosity, making it hard to analyze their inheritances and leaving the genetic background of these species unclear (Grimanelli et al., 2001).

Cloning and Sequence Analysis of Apomixis Related Gene MSI1 (Multicopy Suppressor of Ira1) in Taraxacum antungense

Ultimately, it remains to be determined how best to taxonomically treat these highly clonal, possibly apomictic, forms.

Molecular markers and conservation of plant species in the Latin-America: the case of Phaedranassa viridiflora (Amaryllidaceae)

Results indicate that the diploid individuals have sexual origin and the triploids and tetraploids may be apomictic.

Cytological study in diploid and polipoid populations of the Tripsacum genus/Estudio citologico en poblaciones diploides y poliploides del genero Tripsacum/Estudo citologico em populacoes diploides e poliploides do genero Tripsacum

Utilization of apomictic and dioecious method of reproduction in breeding of Poa sp.

Fall armyworm (Lepidoptera: Noctuidae) resistance in Texas Bluegrass, Kentucky Bluegrass, and their hybrids (POA SPP.)

Apomictic plants are usually adapted to microhabitats, which could explain, in part, the fact that D.

Mycorrhizal-like interaction between gametophytes and young sporophytes of the fern Dryopteris muenchii (Filicales) and its fungal endophyte

Molecular characterization of clonal population structure and biogeography of arctic apomictic Daphnia from Greenland and Iceland.

Mitochondrial DNA markers to identify commercial spiny lobster species (Panulirus spp.) from the Pacific coast of Mexico: an application on phyllosoma larvae

Mulato, which is a result of intentional interspecific hybridization, are apomictic selections from natural germplasm (Miles et al., 2004).

Recurrent selection in a synthetic brachiariagrass population improves resistance to three spittlebug species

Guayule is not only normally a tetraploid (although diploids, polyhaploids, triploids and octaploids all spontaneously occur), but it is also a facultative apomictic producing a mixture of seed types depending upon environmental conditions (ref.

Biotechnological development of domestic rubber producing crops

First, like many other members of the rose family (including apples), it is apomictic. This means that the plants set seed without fertilization; in the case of dwarf cinquefoil, it also means that every seedling is an exact replica of its parent.