apomicts in English
Gametophytic apomicts differ from sexually reproducing plants in that they produce unreduced embryo sacs.
Use "apomicts" in a sentence
1. Apomicts synonyms, Apomicts pronunciation, Apomicts translation, English dictionary definition of Apomicts
2. Some dandelions, Taraxacum, are diplosporous gametophytic Apomicts
3. However, Apomicts in general can be genetically highly diverse
4. What does Apomicts mean? Plural form of apomict
5. Especially among Apomicts these criteria may lead to absurdities
6. Reproductive fitness of sexuals exceeds that of Apomicts and of F 1 hybrids but may fluctuate more strongly between years than is the case in Apomicts
7. Apomicts such as those of Limonium binervosum complex (i.e., L
8. Gametophytic Apomicts are broadly classified as either aposporous or diplosporous
9. 1998; Udupa and Baum sional triploid Apomicts (Dybdahl and Lively 1995)
10. Farmers prefer apomictic seeds, when the hybrids are made into Apomicts
11. 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
12. True obligate Apomicts (individuals that produce only asexual embryo sacs) are uncommon
13. Diversification of Apomicts as a result of the diploid's genetic deterioration is hypothesized.
14. Taraxacum officinale, the common dandelion, exists both as diploid sexuals and triploid Apomicts
15. Apomicts reproduce clonally through seeds, including apomeiosis, parthenogenesis, and autonomous or pseudogamous endosperm formation
16. Apomicts significantly exceeded sexuals in mean survival, mean flower-head production, and mean biomass
17. In addition, studies of cpDNA provide no indication of the potential for sexual reproduc-tion within Apomicts.
18. Apomicts for hybrid ancestry, which was advocated by Ernst (1918) and has been suggested (Whitton et al
19. Apomicts exhibit a variety of developmental alternatives to bypass sexual pathways and produce clonal seeds
20. For regeneration purposes, obligate Apomicts may be treated in the same way as selfed populations
21. Hybrid Apomicts trapped in the ecological niches of their sexual ancestors Martin Maua,1, John T
22. However, this study suggests that the clones primarily originated from the hybridisation between sexual and Apomicts.
23. If these hybrids are made into Apomicts, there is no segregation of characters in the hybrid progeny.
24. Crosses between closely related diploid sexuals and triploid Apomicts were made to study the inheritance of apomixis
25. Apomicts that require fertilization to produce endosperm have disturbed maternal and paternal genome contributions (m:p) in the endosperm
26. While facultative Apomicts produce clonal offspring, sexual species are the conduits of origin for new genetically different apomictic lineages
27. Recent studies arguing that Apomicts are not evolutionary dead ends have generated further interest in the evolution of asexual flowering plants.
28. Polyploid Apomicts both preserve ancestral alleles lost in their diploid ancestors because of ice‐age bottlenecks and harbour also derived, i.e
29. Both hybrids and Apomicts were able to produce fertile seeds, although the latter showed more seedlings with developmental anomalies than the first plants
30. Multiflorum Erben) may form meiotically unreduced diplosporous and reduced embryo sacs (facultative apomixis) or unreduced diplosporous embryo sacs and autonomous en-dosperm (obligate Apomicts) [7,22,23]
31. Apomicts in the group are polyploid (triploid 2n = 3 × = 27 or tetraploid 2n = 4 × = 36), diplosporous, and endosperm devel-ops autonomously
32. Both hybrids and Apomicts were able to produce fertile seeds, although the latter showed more seedlings with developmental anomalies than the first plants
33. Although the embryo is formed without union of the male and female gametes, pollination is necessary in many Apomicts for full development of the embryo and endosperm.
34. For example, in such Apomicts, fertilization of a tetraploid central cell may lead to a 4m:1p endosperm genome ratio, in contrast to the typical 2m:1p ratio of fully sexually reproducing species.
35. A segment of the apospory-specific genomic region is highly microsyntenic not only between the Apomicts Pennisetum squamulatum and buffelgrass, but also with a rice chromosome 11 centromeric-proximal genomic region.
36. Up to 10% cash back · To test whether obligate Apomicts can generate genetic variability, the only valid procedure is to investigate heritable variation amongst the offspring of fully agamospermous mothers
37. Apomicts seem to have evolved from sexual ancestors independently in several distantly related taxa and can experience advantages, such as reduced or no allocation to male function (in hermaphroditic taxa) and reproductive assurance (sensu ref
38. In single ovules, Apomicts might use both sexual and apomictic seed development alternately (only one pathway proceed; Figures 1a,b ) or even simultaneously (either both pathways proceed or are combined forming a B III ; Figures 1d,e ).
39. However, Apomicts, with few exceptions, generally occur in genera with low chromosome base numbers (average of 9.3), i.e., they tend to occur in families and genera with stable genomes that are not actively undergoing paleopolyploid processes (polyploidy followed by aneuploid series formation, diploidization, and new base number formation).
40. Considering only the four sequences with more than 2.5 times difference on the expression in ovaries of Apomicts than of sexual plants, BbrizHelic, BbrizRan, BbrizSec13 and BbrizSti1, a more detailed expression analysis throughout different stages of ovary development was performed using RNA from ovaries at megasporogenesis (stages I and II
41. Inheritance studies indicated a single-locus model of genetic control of apomixis in the signalgrass-palisadegrass-ruzigrass agamic complex (Ndikumana, 1985; Valle et al., 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).