tetraploid


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to tetraploid: polyploidy

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 ?
The origin of the triploid and tetraploid forms of the Andigenum group could have multiple origins both through meiotic polyploidization events (unreduced gametes) of diploid landraces and through interspecific hybridization.
2006) showed that triploid Crassostrea gigas produced using tetraploid females selected for their resistance to summer mortality had greater survival than similar triploids produced using unselected females.
Stability of performance of tetraploid wheat landraces in the Ethiopian highland.
Embryonic development of tetraploid mice during the second half of gestation.
Six populations were used in this study, including two comprised solely of diploid individuals, two comprised solely of tetraploid individuals, and two of mixed-ploidy (i.
Induction and identification of tetraploids using in vitro colchicine treatment of Gerbera jamesonii Bolus cv.
Table 1: Mean values of H2O2, CAT, MDA, SOD and POD with Cd alone as well as Cd in combination with salicylic acid of tetraploid (Durum-97) and hexaploid (Shafaq-06) calli with standard errors
discussed below, a cross between a tetraploid and a 2n gamete-producing
The result of analysis of variance detected significant differences for pollen grain viability among the plants derived from the tetraploid B.
Now all the wheat varieties grown commercially are tetraploid (6n) i.