tetraploid

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Related to tetraploids: polyploid, euploid, diandry, Allotetraploid

tetraploid

 [tet´rah-ploid]
1. characterized by tetraploidy.
2. an individual or cell having four sets of chromosomes.

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]

tetraploid

/tet·ra·ploid/ (tet´rah-ploid)
1. characterized by tetraploidy.
2. an individual or cell having four sets of chromosomes.

tetraploid

(tĕt′rə-ploid′)
adj.
Having four times the haploid number of chromosomes in the cell nucleus: a tetraploid species.
n.
A tetraploid individual.

tet′ra·ploi′dy n.

tetraploid (4n)

[tet′rəploid]
Etymology: Gk, tetraploos, fourfold, eidos, form
1 an individual, organism, strain, or cell that has four complete sets of chromosomes, quadruple the haploid number characteristic of the species. In humans the tetraploid number is 92; it occurs extremely rarely, in aborted or stillborn fetuses.
2 also tetraploidic. Pertaining to such an individual, organism, strain, or cell. Compare diploid, haploid, triploid. See also polyploid. tetraploidy, n.

tetraploid

Referring to a polyploid organism with four (4X) sets of chromosomes derived from two different parental species, resulting in an allopolyploid organism.

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]

tetraploid

  1. having four times the HAPLOID (1) number of chromosomes in the nucleus.
  2. an individual with four sets of chromosomes per cell. see TRIPLOID.

tetraploid

1. characterized by tetraploidy.
2. an individual or cell having four sets of chromosomes.
References in periodicals archive ?
smithii are tetraploids occurring in northeastern Rio Grande do Sul.
it allows for recurrent production of new tetraploids with different
The investigators also are developing tetraploid orange-flesh potato varieties.
We ended up with tetraploids that have only 2-3 times the carotenoids present in Yukon Gold potatoes--not what we were hoping for.
2007, "Study of genetic polymorphism in some tetraploid cotton cultivars by using RAPD analysis", Pak.
As result, seven taxa were determined to be sexual tetraploids with chromosome number 2n = 144 and Asplenium humbertii is a sexual hexaploid with 2n = 216.
Chromosome studies in Cyperaceae, VIII: Meiosis in diploid and tetraploid forms of Carex siderosticta Hance.
polium group which includes complexes of polyploid taxa, the species in the yellow-flowered group are mainly diploids; the rare polyploid taxa hardly go beyond the tetraploid level.
ariakensis for these experiments were produced in October, 2003, at the VIMS oyster hatchery by crossing tetraploids of each species produced in 2002 with diploids of the same species (see Guo & Allen 1994).
Chapman and Kimber (1992e) tried to permit one more value of relative "affinity" in their so-called "second-order" models for tetra- and pentaploids, but because in tetraploids there are six and in pentaploids ten potentially different relationships to explore, three variables are evidently insufficient.