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Induction to a larger ploidy other than a triploid, such as a tetraploid, is viable when eggs derived from triploids are fertilized with sperm from diploids, inhibiting the extrusion of the first polar body during meiosis I (Guo & Allen 1994b).
Primary plasma cell leukemia: clinical, immunophenotypic, DNA ploidy and cytogenetic characteristics.
Diploid and triploid Japanese oyster (total n = 21,000; 3,500 for each ploidy and site) were obtained from Centro de Reproduccion de Especies Marinas del Estado de Sonora (CREMES) O.
Alternatively, the ploidy change itself might alter any of these traits; e.
Poliplodization is an important strategy used in forage breeding programs, because it may increase the expression of agronomic traits of interest, restore fertility of intra- and interspecific hybrids, and, in some cases, permit the exploration of genetic variability in apomictic species by duplicating sexual plants and equaling the ploidy to allow the accomplishment of crossings and obtaining fertile offspring (PEREIRA et al.
Here the chromosome counts for three species are revealed and the ancestral levels of ploidy as well as geographical distributions of the different ploidy levels are compared.
It also has malignant potential due to abnormal DNA ploidy in lesional epidermis like other porokeratosis.
A study on Arabidopsis tetraploid plants clearly indicated increase in ploidy level having a better effect on size of cell (Breuer et al.
It includes the application of ancillary tools like histologic stains, immunohistochemical localization of antigens, flow cytometric studies to classify cell types and determine ploidy, and molecular diagnostics to identify gene mutations and rearrangements, and their indications and applications.
Somatic chromosome number (2n), ploidy level, karyotype formula and previous counts for the studied Fritillaria taxa Taxa Voucher number Chromosome Ploidy (ISTE) number (2n) level F.
Correlation between white-opaque switching and cellular growth rates or chromosomal ploidy
These variations, termed somaclonal variations may be induced due to genotype, ploidy level, age of donor plant, explant source, tissue culture technique employed, culture conditions, duration of tissue culture and exposure to high level of exogenous hormones.
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