apomict

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apomict

any plant which is produced by APOMIXIS.
References in periodicals archive ?
1994; Valle and Savidan, 1996): tetraploid apomicts are simplex for a dominant allele (Aaaa) at the putative "apomixis locus," sexuals being homozygous recessive at the locus and either diploid (aa) or tetraploid (aaaa).
In pseudogamous apomicts, pollen is necessary for successful seed production (probably required for endosperm formation) but does not fertilize the ovules (Richards, 1986; Asker and Jerling, 1992).
Tetraploid bahiagrass plants are generally obligate apomicts, and improvement has been hampered by the lack of stable, sexual tetraploid types.
Hybrids with progeny exhibiting partial uniformity and a degree of variability were classified as facultative apomicts, and hybrids with completely variable progeny were scored as sexual.
In most apomicts, the unreduced egg cell initiates division near or at the time of anthesis and develops autonomously into an embryo without being fertilized by a sperm nucleus from the pollen; this is referred to as parthenogenesis.
Most buffelgrass accessions are obligate apomicts (Fisher et al.
Cytologically, all tetraploids were facultative apomicts.
Subsequent embryological analyses confirmed diploids to be exclusively sexual while the polyploid cytotypes reproduced as facultative apomicts (Brown and Emery, 1958; Burson et al.
Precocious gametophytization occurs in other apomicts (Asker and Jerling, 1992; Leblanc and Savidan, 1994; Peel et al.