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apomixis
apomixis Biol. (æpəʊˈmɪksɪs) [mod.L. (H. Winkler 1908, in Progressus Rei Bot. II. 303), f. apo- + Gr. µίξις mingling.] Reproduction of organisms without fertilization (see quot. 1932). (Opp. amphimixis; see amphi-.)1913 Amer. Naturalist XLVII. 282 Winkler divides all reproductive phenomena into thre...
Oxford English Dictionary
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Apomixis
Facultative apomixis means that apomixis does not always occur, i.e., sexual reproduction can also happen. It may also be referred to as male apomixis or paternal apomixis.
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Pseudogamy
Pseudogamous apomixis
Apomixis in flowering plants (angiosperms) includes some types of vegetative reproduction and also agamospermy, which is asexual Pseudogamous apomixis occurs in many families.
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apomictic
apomictic, a. Biol. (æpəʊˈmɪktɪk) Also apoˈmictical. [f. apo- + Gr. µικτός mixed + -ic; see next.] Pertaining to or produced by apomixis; reproducing without sexual fusion. Hence apoˈmictically adv., by means of apomixis.1913 Amer. Naturalist XLVII. 283 Parthenogenesis, the apomictic origin of a spo...
Oxford English Dictionary
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Pentarhizidium orientale
Lloyd, Facultative Apomixis and Polyploidy in Matteuccia orientalis, American Fern Journal, Vol. 63, No. 2 (Apr.–Jun. 1973), pp. 43–48.
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mixis
mixis, n. Biol. (ˈmɪksɪs) [a. G. Mixis, a. Gr. µίξις mixing, (sexual) intercourse.] Reproduction involving the fusion of gametes and (with some writers) the alternation of nuclear phases.1944 Hereditas XXX. 146 The processes given the names amixis, mixis and apomixis by Winkler. 1950 Adv. Genetics I...
Oxford English Dictionary
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Crepis
Apomixis in Crepis
As with several other genera in Asteraceae, multiple Crepis species exhibit apomixis, a form of asexual reproduction where flowers Apomixis can facilitate range expansion in ways that sexual reproduction does not.
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Hedlundia pseudofennica
Apomixis and hybridization are common in some groups of Sorbus species.
See also
Arran whitebeams
Spier's School - a mature example grows here.
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Cupressus atlantica
Moroccan cypress does not however share the unique reproductive system of male apomixis found in Saharan cypress.
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Autotoky
Plants that reproduce by parthenogenesis usually do so by apomixis, a process that retains meiosis.
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Beta trigyna
It is a hexaploid (2n=54) that usually reproduces by apomixis.
References
trigyna
Plants described in 1800
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Chondrilla (plant)
Plants of both genera undergo apomixis, producing fertile seeds via asexual reproduction.
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Nucellar embryony
Nucellar embryony is a type of apomixis, where eventually nucellar embryos from the nucellus tissue of the ovule are formed, independent of meiosis and See also
Apomixis
References
External links
Tropical agriculture
Citrus
Plant reproduction
Asexual reproduction
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Asexual reproduction
Examples are parthenogenesis and apomixis. Apomixis and nucellar embryony
Apomixis in plants is the formation of a new sporophyte without fertilization.
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