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Embryo haploid

Camelina sativa IMC Embryos Haploid/DH Ferrie and Bethune (2011)... [Pg.360]

Sinapis alba IMC Embryos Haploid Ferrie and Keller (2007), Mithila and Hall (2007)... [Pg.360]

Sunflower Anther culture Callus, embryos Haploid Curel (1 991 a, 1 991 b), Thengane et al. (1 994) Saji and Sujatha (1 998), Mix (1 985) Caswell and Ferrie, (unpublished)... [Pg.361]

Ovary culture Callus, embryos Haploid Mix (1 985), Celebart and San (1 987)... [Pg.361]

Haploids can be produced from tetraploid cultivars and breeding clones via parthenogenesis (Hougas and Peloquin, 1957). When a tetraploid is crossed with any of several selected diploid clones, some of the offspring are diploid. In these crosses, both sperm cells from the pollinator enter the central cell, allowing normal endosperm to develop. This stimulates the division of the egg cell in the absence of fertilization, resulting in the production of a haploid (2x) embryo... [Pg.34]

Hermsen, J. G. T, Verdenius, J. (1973). Selection from Solanum tuberosum group Rhureja of genotypes combining high-frequency haploid induction with homozygosity for embryo-spot. Euphytica, 22, 244-259. [Pg.55]

The embryo develops from a zygote formed by fusion of a sperm nucleus originating from the pollen and an egg cell. The fertilized egg is surrounded in the gynmosperms by a nutritive layer or endosperm which is haploid and is derived from the same game-tophyte tissue that produced the egg. In angiosperms two sperm nuclei form one of these fertilizes the egg, while the other fuses with two haploid polar nuclei derived from the female gametophyte. (The polar nuclei are formed by the same mitotic divisions that formed the egg.) From this develops a 3n triploid endosperm. [Pg.30]

Alternatively, the multi-cellular mass that is liberated from the rupture of the microspwre wall may proliferate to form a callus, from which organogenesis occurs by the regeneration of shoots and roots following transfer to culture media with ap>prop)riate growth regulators. It may sometimes be possible to obtain androgenic haploids either via embryo formation or organogenesis from callus in the same species by the manipulation of the chemical components of the culture medium... [Pg.591]

Segui-Simarro JM and Nuez F. 2008. How microspwres transform into haploid embryos changes associated with embryogenesis induction and microspore-derived embryogenesis. Physiologia Plantarum 134 1 -12. [Pg.595]

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See also in sourсe #XX -- [ Pg.13 ]



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Haploids

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