polyploidy


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pol·y·ploid

 (pŏl′ē-ploid′)
adj.
Having one or more extra sets of chromosomes: a polyploid species; a polyploid cell.
n.
An organism with more than two sets of chromosomes.
pol′y·ploi′dy n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.polyploidy - the condition of being polyploid
condition - a mode of being or form of existence of a person or thing; "the human condition"
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References in periodicals archive ?
The induction of polyploidy in bivalve molluscs is mainly performed by chemical means (Piferrer et al.
MEIOSIS MATURATION IN THE MARINE CLAM ANOMALOCARDIA BRASILIANA (VENERIDAE)
FISH studies revealed multiple signals with BCR probe (chromosome 22) and centromeric probes for chromosomes 2 and 18 suggesting polyploidy.
GASTRIC SCHWANNOMA - A CASE REPORT
If polyploidy allowed many plant lineages to survive and adapt during global changes, as suggested, we might wonder whether polyploidy will confer a similar advantage in the current period of global warming and general ecological pressure caused by the human race.
DOUBLE-UP: The importance of gene and genome duplications for natural and artificial organism populations
Polyploids are organisms with more than two sets of chromosomes (Levin, 2002), and though polyploidy is relatively rare in most groups of animals (Otto and Whitton, 2000; Mable, 2004; but see Legatt and Iwama, 2003), it is extremely common in flowering plants.
The reproductive ecology of diploid and tetraploid galax urceolata
We treated the SSR markers as dominant markers in DNAMAN software because in high polyploidy genomes like that of sugarcane, it was difficult to distinguish between the alleles of homologous chromosomes as being heterozygous at particular locus (Oliveira et al.
GENETIC VARIABILITY BASED RESPONSE OF SUGARCANE LINES RESISTANT AND SUSCEPTIBLE AGAINST WHIP SMUT
In various studies on induced polyploidy, the regeneration of mixoploid plants has been reported as a major problem, since the genetic stability of these partial polyploids is unknown.
Stability in chromosome number and DNA content in synthetic Tetraploids of Lolium Multiflorum after two generations of selection/Estabilidade no numero cromossomico e no conteudo de DNA em tetraploides sinteticos de Lolium multiflorum apos duas geracoes de selecao
Background and Aims: Cosmos section Discopoda (Asteraceae, Coreopsideae) is a model for studying polyploidy and aneuploidy.
Numeros cromosomicos para tres especies de Cosmos seccion Discopoda (Asteraceae, Coreopsideae), con notas citogeograficas/Chromosomic numbers for three species of Cosmos section Discopoda (Asteraceae, Coreopsideae), with cytogeographic notes
It is a poisonous alkaloid that is widely used for polyploidy induction (Ade and Rai, 2010).
IN VITRO IMPROVEMENT OF CHARACTERS IN ROSA SPP. THROUGH COLCHICINE
Twenty-five cells have to be scored, and we define a FISH-positive result as (1) the presence of at least 4 cells with gains in at least 2 centromeric probes or (2) the presence of a homozygous or heterozygous deletion of 9p21 in at least 12 cells or (3) the presence of more than 10 cells with a balanced polyploidy (ie, 4N or 8N).
Common Fluorescence In Situ Hybridization Applications in Cytology
Polyploidy is common in flowering plants of cold climates with harsh and stressful environments (Meng et al.
Cytotaxonomical analysis of eleven Turkish Fritillaria L. (Liliaceae) taxa
Polyploidy and inter-species hybridization occur naturally but can also be artificially induced.
Polyploidy and Hybridizaton for Crop Improvement
Astyanax have presented an extensive diversity in the chromosome number and karyotype formula, both intra- and interspecifically, besides the occurrence of B chromosomes and natural polyploidy for some populations (Malacrida et al.
Karyotypic diversity among three species of the genus Astyanax (Characiformes: Characidae)/Diversidade cariotipica entre tres especies do genero Astyanax (Characiformes, Characidae)

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