polyploid

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Related to polyploids: haploid

polyploid

 [pol´e-ploid]
1. characterized by polyploidy.
2. an individual or cell characterized by polyploidy.

pol·yp·loid

(pol'ē-ployd),
Characterized by or pertaining to polyploidy.

polyploid

(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.

polyploid

[pol′əploid]
Etymology: Gk, polys + plous, times
1 n, an individual, organism, strain, or cell that has more than twice the haploid number of chromosomes characteristic of the species. The multiple of the haploid number is denoted by the appropriate prefix, as in triploid, tetraploid, pentaploid, hexaploid, heptaploid, octaploid, and so on. Polyploidy is rare in animals, producing individuals that are abnormal in appearance and usually infertile. It is common in plants, however; such plants generally are larger, have larger cells, and are hardier than diploid plants.
2 adj, also called polyploidic. pertaining to such an individual, organism, strain, or cell. Compare aneuploid. polyploidy, n.

polyploid

adjective Referring to polyploidy, see there.

pol·y·ploid

(pol'i-ployd)
Characterized by or pertaining to polyploidy.

polyploid

Having more than twice the normal HAPLOID number of chromosomes. See also DIPLOID.

polyploid

  1. (of cells or organisms) having three or more complete sets of chromosomes.
  2. an individual or cell of this type. see TRIPLOID, TETRAPLOID.

polyploid

1. characterized by polyploidy.
2. an individual or cell characterized by polyploidy.
References in periodicals archive ?
2010; but see Mable, 2004) and polyploid angiosperms often exhibit higher levels of self-fertilization than their diploid relatives (Barringer, 2007).
In this sense, after polyploidization process, it is necessary to monitor the synthetic polyploids for subsequent generations to verify the chromosomal and phenotypic stability and the possible delayed effects of colchicine (LUCKETT, 1989; CASTRO et al.
The fraction of the plants that are polyploids is much higher from
Genetic control of bivalent pairing in the Avena strigosa polyploid complex.
Whit this analysis it has not been found chromosomal fragments, and of the number changes were found polyploid cells in concentration of 50 [micro]g/ml in a 4-hour treatment (3-cell), and 8-hour treatment one cell.
Taking into account that polyploid species generally display a great amount of meiotic abnormalities that compromise pollen viability (SINGH, 1993), the present research aims to evaluate the meiotic process in four intraspecific hybrids and their progenitors to investigate the meiotic stability as an additional parameter to select the most interesting hybrid in relation to seed production to attend the commercial seed demand.
Exchanges were rarely detected and less frequency of polyploids was also recorded in the exposed groups when compared to the respective control groups.
However, our diversification rate analyses only examined recent polyploids.