Results 21 to 30 of about 4,725 (176)
100 Years of Chromosome Research in Rye, Secale L.
Although microscopy and genetics were still in their infancy, there are cytological results produced a hundred years ago that are still relevant today. Since the 1920s, rye has been a subject of chromosome research. It started by plotting its mitotic and
Rolf Schlegel
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Addressing a weakness of anticancer therapy with mitosis inhibitors: Mitotic slippage
Mitosis inhibitors, which include antimicrotubule drugs, are chemotherapy agents that induce the arrest and apoptosis of mitotic cells. Mitotic slippage, in which mitotically arrested cells exit mitosis, limits the effectiveness of mitosis inhibitors. We
Riju S. Balachandran, Edward T. Kipreos
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Asymmetric clustering of centrosomes defines the early evolution of tetraploid cells
Tetraploidy has long been of interest to both cell and cancer biologists, partly because of its documented role in tumorigenesis. A common model proposes that the extra centrosomes that are typically acquired during tetraploidization are responsible for ...
Nicolaas C Baudoin +5 more
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Comparative cytogenetics of anembryonic pregnancies and missed abortions in human
Miscarriage is an important problem in human reproduction, affecting 10–15 % of clinically recognized pregnancies. The cases of embryonic death can be divided into missed abortion (MA), for which the ultrasound sign of the embryo death is the absence of ...
T. V. Nikitina +5 more
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Tetraploidy and CIN: a dangerous combination [PDF]
Chromosomal instability (CIN) is a hallmark of cancer, and is associated with both poor prognosis and drug resistance.1 Tetraploidy has also been frequently observed in human cancer despite being a...
Sally, Dewhurst, Charles, Swanton
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Morphological changes in colchicine--treated Pelargonium × hortorum L.H. Bailey greenhouse plants
Polyploids were effectively pre-selected in colchicine-treated plants of the desirable brown-leaved cultivar Black Velvet Scarlet F1 of the species Pelargonium × hortorum L.H.
P. Jadrná, O. Plavcová, F. Kobza
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Induction to tetraploidy in Pacific oysters (Crassostrea gigas)
As an alternative to the use of cytochalasin B (CB), 6-dimethylamino-purine (6-DMAP) and thermal shock (heat shock by increasing the temperature from 25 to 36ºC) could be used to induce tetraploidy in Pacific oyster (Crassostrea gigas) diploids ...
Emílio Mateus Costa Melo +3 more
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Reversible Tetraploidy as an Evolutionary Mechanism [PDF]
Polyploidization is reversible. Randolph and Fischer (1939) obtained diploid offspring from autotetraploid maize. Several fertile haploids have also been obtained from successful tetraploid and octaploid species (Kimber and Riley, 1963; de Wet and Harlan, 1970), and Raven and Thompson (1964) pointed out that there is no experimental basis or ...
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Artificial induction of tetraploidy in Humulus lupulus L. using oryzalin
The aim of the research was to establish an efficient procedure for in vitro micropropagation in order to obtain numbers of identical plants for in vitro polyploidization of Humulus lupulus (2n = 20), using antimicrotubule agent oryzalin.
Michaela Švécarová +3 more
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ABSTRACT Unreduced gametes naturally promote polyploidization and are valuable in breeding polyploid offspring. Bigleaf hydrangea (Hydrangea macrophylla ssp. macrophylla), a major ornamental crop, has shown spontaneous polyploidization rates ranging from 0% to 94% in previous crosses.
Conny Tränkner, Anke Müller
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