polyploid


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Related to polyploid: autopolyploid, autopolyploidy

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 ?
Polyploid fish and shellfish: production, biology and applications to aquaculture for performance improvement and genetic containment.
Population cytotype structure in the polyploid Galax urceolata (Diapensiaceae).
Gene expression was studied in a lx, 2x, 4x polyploid series
Gandil (2n=2X=14, AuAu), a wild diploid species has been proposed as the donor of the A genome in the polyploid species of wheat's [11].
Discussing in turn the genomics of hybrids and of polyploids, and mechanisms for novelty in the two, they consider such topics as transcriptome profiling of Drosophila inter-specific hybrids, developments in the study of the genomics and heterosis in hybrid rice, chromosomal and gene expression changes in Brassica allopolyploids, polyploid species-specific chromosomal polymorphisms in wheat, seed development in interploidy hybrids, and genetic and epigenetic mechanisms for polyploidy and hybridity.
Sex determination and polyploid gigantism in the dwarf-surf clam, Mulinia lateralis Say.
4, 6) It may involve the pelvis, retroperitoneum, vagina, vulva perineum, or buttocks, and usually presents as a polyploid or cystic mass.
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.
Ludwigia grandiflora and other six to eight species grouped in Oligospermum section are considered a polyploid complex with hybridization among some of the species (Zardini et al.