apomict

(redirected from apomicts)
Also found in: Dictionary, Medical.
Graphic Thesaurus  🔍
Display ON
Animation ON
Legend
Synonym
Antonym
Related
  • noun

Words related to apomict

a plant that reproduces or is reproduced by apomixis

References in periodicals archive ?
Given that sexuality is conditioned by the homozygous condition at the apomixis locus, a sexual population advanced by open pollination will remain fully sexual if not contaminated with pollen from compatible apomicts (Miles and Escandon, 1997).
The very first hybrids between highly resistant sexual clones and susceptible apomicts (e.
species belonging to "species complexes" are apomicts,
amp; Jerling, 1992; Richards, 1996), while most if not all apomicts are
In an earlier study (Roy and Rieseberg, 1989), electrophoresis of progeny arrays from Arabis holboellii collected at the Cement Creek site revealed no recombination, suggesting that the clonal variation uncovered there may have resulted from polyphyletic origin of the apomicts from sexual parents combining different alleles.
Because cultivated bahiagrass tetraploid grasses are considered to be obligate, or highly obligate apomicts, these 100% sexual tetraploid lines should have practical value when used as female parents in plant improvement programs.
However, method of reproduction (obligate and facultative apomicts combined) did not deviate from the 1:1 segregation ratio expected for SDRFs ([chi square] = 0.
However, the production of facultative apomicts via chromosome doubling of a sexual, diploid race of Paspalum notatum Flugge suggests that increased allele dosage may be sufficient to induce the expression of apomixis (Quarin et al.
In apomicts, the development of an unreduced egg in the female gametophyte is normal; therefore, 2n + n fertilization should occur at a higher frequency in apomicts than in sexual plants.
Five accessions (PI 295657, PI 315679, PI 409367, PI 409407, and PI 409704) were obligate apomicts or highly apomictic, whereas S 12103 was sexual.
The remaining species reproduced primarily by apomixis and these data demonstrated that apomicts do not necessarily have high seed set.
Embryological investigations indicated that polyploid cytotypes reproduce as facultative apomicts (Leblanc et al.
Environmentally induced variation in facultativeness and fertility is common among apomicts (Asker and Jerling, 1992).
However, apomicts, with few exceptions, generally occur in genera with low chromosome base numbers (average of 9.
In sexuals and facultative apomicts, the course of meiosis is under polygenic control (Kaul and Murthy, 1985) and also depends on environmental conditions (Hermsen, 1984; Asker and Jerling, 1992).