polyploidy


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polyploidy

 [pol´e-ploi″de]
the state of having more than two sets of homologous chromosomes.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

pol·y·ploi·dy

(pol'ē-ploy'dē),
The state of a cell nucleus containing three or more haploid sets. Cells containing three, four, five, or six multiples are referred to, respectively, as triploid, tetraploid, pentaploid, or hexaploid.
[poly- + G. ploidēs, in form]
Farlex Partner Medical Dictionary © Farlex 2012

pol·y·ploi·dy

(pol'ē-ploy'dē)
The state of a cell nucleus containing three or more haploid sets. Cells containing three, four, five, or six multiples are referred to, respectively, as triploid, tetraploid, pentaploid, and hexaploid.
[poly- + G. ploidēs, in form]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Duncan, "Aneuploidy, polyploidy and ploidy reversal in the liver," Seminars in Cell and Developmental Biology, vol.
Polyploidy in orchids produces desirable characteristics like giantism (an increase in floral piece) and intensification in flower coloring (Watrous and Wimber, 1988).
Polyploidy is a common mechanism of speciation in plants (Soltis & Soltis 1999, Haufler 2008).
Speciation by polyploidy in treefrogs: multiple origins of the tetraploid, Hyla versicolor.
Preliminary test of polyploidy induction in cotton (Gossypium arboretum) using colchicine treatment.
The present findings contribute to the knowledge on the biology of the species and offer important information for establishing biotechnological strategies, such as the induction of polyploidy for purposes of aquaculture.
Polyploidy is often thought to lead to "instant speciation" due to reductions in the viability and fertility of intercytotype hybrids (Husband and Sahara, 2003; Bolnick and Fitzpatrick, 2007; Rieseberg and Willis, 2007; Wood et al., 2009; Ramsey, 2011).
This indicated high polyploidy and heterozygous nature of sugarcane germplasm.
Molecular cytogenetic techniques, such as in situ hybridization methods, are admirable tools to analyze the genomic structure and function, chromosome constituents, recombination patterns, alien gene introgression, genome evolution, aneuploidy, and polyploidy [2,3].